It's sad to see that some people don't appreciate what they have, and don't take care of the equipment they own. This is definitely a great amplifier that deserve more lifetime. Great job!
@vintageaudioaddict
2 жыл бұрын
Thank you so much.
@samiam9059
2 жыл бұрын
Most are not interested in true High Fidelity listening whatsoever these days. Back then we were obsessed with excellent gear and speakers. Today people listen to MP3 recordings which are compressed 10x and 12x and multi sampled as low as 128? Like people using crappy cellphone cameras over a good camera. They just don't care today..
@wisetank135
2 жыл бұрын
the original owner might have passed away already
@ud-
Жыл бұрын
@@samiam9059 and that's all the modern day problems in a nutshell "They don't care"
@scottfra
2 жыл бұрын
Really appreciate what you put into these videos. And especially appreciate all the background on the founding and evolution of the brands. Well done!
@vintageaudioaddict
2 жыл бұрын
Glad you like them! Thank you so much for your kind words.
@abdulhalim9650
Жыл бұрын
Old technology but how they stood the test of time is a mark of a truly excellent piece of electronic equipment. Build like a tank with first class specifications.Thank you for bringing them back to life..Enjoyed your video, beautiful work done and I could sense your love for it. Vintage it is but obsolete it is not for all we care.
@vintageaudioaddict
Жыл бұрын
Your welcome and thank you for your kind words.
@gamellir
2 жыл бұрын
What a great videos. I have restored a dozen or so vintage receivers but I still enjoyed watching the entire video. It felt like I had a fellow enthusiast validate what I have been doing down in my basement.
@vintageaudioaddict
2 жыл бұрын
Awesome, thank you! Glad that you are keeping the old gear running also. This hobby is a lot of fun.
@clee6746
Ай бұрын
This reminds me of my life in 1977. SU/SE 9600 were the best sounding amplifiers made by Technics back then.
@Wurlyscope
9 ай бұрын
Thank you for this detailed restoration video. Power amplifiers were built like tanks back in the 70’s.
@micheltremblay4774
2 жыл бұрын
Kenwood used "Sygma Drive" to achieve a damping factor ot 1,000. I love my Kenwood Basic M2 and M1 in Sygma Drive mode. I can go at least 2 clicks on the volume knob when ever I need to do so. Great review of the Technics amplifier. Thanks and take care.
@vintageaudioaddict
2 жыл бұрын
Thanks for sharing and for watching.
@jamesvandamme7786
2 жыл бұрын
Is "Sygma Drive" anything like the standard negative feedback? Not that I accuse any audio gear marketing department of printing bullshit.
@Bigoak66
2 жыл бұрын
Don't think I've ever invested 2 hours into a KZitem video. Now I have. Very cool. Really enjoyed it!
@vintageaudioaddict
2 жыл бұрын
Glad you enjoyed it! Thank so much for letting me know.
@aammdj
Ай бұрын
I have a Technics SU 8600. Fantastic amp. I don't think I'll ever get rid of it.
@Dutchamp
10 ай бұрын
Measuring power ... Is nice to see good performance. But it all changes with loudspeakers connected. Its frequenty depending. But you got a nice video made even for non electronics experienced people😊
@howardkanitz4998
2 жыл бұрын
Man that was fantastic! Thoroughly enjoyed it. You are kinda slow, but with my ADHD it helps me understand more. Thank you for doing this like you do. I already knew most of this, but you gave me more confidence. My amps both have torroidal coils in them. I have had many like you have in the past and wonder if they could have been saved.
@vintageaudioaddict
2 жыл бұрын
Thank you for your comments and for watching.
@PeterMilanovski
7 ай бұрын
I realise that this video is 2 years old now, it's rare to see someone else who goes up in capacitor voltage rating. I see it happening on rare occasions but I don't see it happening often enough.... I don't believe that every single capacitor should be replaced with a higher voltage equivalent but at the same time it doesn't hurt anything if you do. I tend to test and measure the old capacitors to see if they have had a hard life and make sure that those ones get a higher voltage equivalent... Regarding using film capacitors on the input, I have seen on one occasion over on X-ray Tony B's channel where he replaced electrolytic capacitors on the input with film capacitors and found that the sound had changed which he could hear and it showed up on his oscilloscope doing a frequency sweep! So in that case I would recommend doing a frequency sweep and checking to make sure that the amplifier can do the frequency range it's specified to do, just to be on the safe side! As for the heatsinks on this amplifier, I would have preferred to see them removed and washed clean, I think that years of heat would have a baked layer of something on them which possibly invisible to the eye, might be adding a layer of insulation.... That amplifier has an incredible 1kw of power consumption rating which tells me that this thing will get pretty hot when putting out some serious power! You would want it to be able to dissipate heat as efficiently as possible! Also, I would have liked to see some deoxit used on the transistor sockets, sometimes they get dirty and cause problems with intermittent connection's kinda like with vacuum tube sockets.... Apart from that, this was a great restoration, the amplifier design is excellent for service work...
@markeaton2003
2 жыл бұрын
You can tell by the filter caps and those heat sinks that, that amp makes over 100 watts RMS. A beast.
@vintageaudioaddict
2 жыл бұрын
She is a beast. Nice sounding too.
@kuykuy93
Жыл бұрын
Did he/did he not, in the end, replace the smoothing capacitors?
@hadibq
2 жыл бұрын
Thank you! lots of learning in every video I check out. Love those equipments (not sure why btw 😄) I'm happy for the care and respect you give them!
@vintageaudioaddict
2 жыл бұрын
Your very welcome and thank you for your kind words.
@gilbertwashburn7095
2 жыл бұрын
Hi it's Gill from Milwaukee I love techniques equipment I got an SUV 8 in some other I think model 9 I don't remember it's buried away somewhere today I'm working on a Yamaha dspa one awesome amplifier just finished reflowing the 132 pins on a display I could be wrong I could be more but anyway it's done and it works I'm excited but this in the back of a pickup truck from a junk man in a snowbank paid 80 bucks for it took the risk it's great have a great day thanks for all the information
@vintageaudioaddict
2 жыл бұрын
Your welcome and thank you for watching.
@erguy6319
2 жыл бұрын
Thank you very much for this wonderful video. Love vintage audio for a long time, now I will make it is my retirement hobby to restore them. I am learning a lot from you.
@vintageaudioaddict
2 жыл бұрын
You can do it! Thank you for watching.
@danielk8926
2 жыл бұрын
I checked on hifi engine and you had not left a review. I always appreciate the HiFi engine reviews
@vintageaudioaddict
2 жыл бұрын
Thanks for commenting. I love hifiengine.com but I never leave reviews.
@robertdavis5714
Жыл бұрын
That was the thing, metal engrave (on front) either name or SS #. I remember buying my 1st stereo receiver in 1979 and actually considered doing that. I dread seeing those light color purple Elec. Caps.
@vintageaudioaddict
Жыл бұрын
Thanks for sharing and for watching.
@LeoShimm
2 жыл бұрын
This guy is excellent !! Love to watch his all video, although I may not do anything similar try, but can get lot of knowledge out of his video !!
@vintageaudioaddict
2 жыл бұрын
I appreciate that! Thanks for watching.
@per-henrikpersson1884
2 жыл бұрын
Great video, Great work and workmanship, and a REAL Jewel of Power Amplifier. I want 6 or 8 of them to my Home Cinema System and give my subwoofers to someona that NEEDS them. A fantastic video.
@vintageaudioaddict
2 жыл бұрын
Thank you very much! I appreciate your kind words.
@EsotericArctos
2 жыл бұрын
I can understand the Input On/Off under some circumstances. It would mean the amp stays warm, so stays more stable. Also means, in the event of a quick change over in a public system, you are going to have minimal downtime and less chanse of pops through the speakers if something had to be changed mid show or something. On that note, if a peamp or input device fails in a destructive way, you can quickly isolate it and protect the power amp. Probably not really something you'd use in a home environment.
@matthewgolterman4570
2 жыл бұрын
Thank you sir.. So many of the other folks in your space annotate/edit their vids to more fit into KZitems preferential algorithms. I appreciate you giving us 2 hours of your time and letting us see it all.
@vintageaudioaddict
2 жыл бұрын
So nice of you. Thank you for watching.
@williamjones4483
Жыл бұрын
While your sentiment is appreciated, there is another viewpoint, one that says many people don't have the time (or patience) to sit around for that length of time to watch a video. I am into computers in a big way and there is another KZitemr that shall remain nameless that will make videos sometimes four hours or longer. Videos of that nature become tedious to watch, especially if the person just drones on and on. At the same time I don't like them so short as to be useless. Having said that, I believe that is why many videos are short.
@cameronkrause4712
2 жыл бұрын
looks like that amp was brought to dances and parties. It's beautiful in its own right!
@vintageaudioaddict
2 жыл бұрын
Ya, this amp had a rough life. As Neil Young said "It's better to burn out than to fade away" LOL
@ABC-rh7zc
2 жыл бұрын
The problem with relying on the components already in your amplifier is that a previous fix may have been done using the wrong parts
@dalemettee1147
2 жыл бұрын
One of the hi-fi mag's did a review of the RTR RS1500 US. Then quad was the big thing. Someone recorded a 78 with the quad carrier in it. The four channel matrix would detect it and switch the amp to quad. The RS 1500 would record this signal. I was very impressed, very. Other specs were just as impressive Wow/flutter numbers were solid and dropouts were almost non-existent. The units that I had were 1/2 track and would record in 15 IPS. A feature that I also found nice was the fact that this unit could run on a 12 volt battery for remote sites.
@vintageaudioaddict
2 жыл бұрын
Thanks for sharing. Most folks knew Technics for their turntables but their open reel decks and other products were excellent also.
@TuiCatNZ
2 жыл бұрын
Appreciate the chapters.
@vintageaudioaddict
2 жыл бұрын
Thanks for letting me know and for watching.
@KWE.ECLECTIC
7 ай бұрын
Fantastic video. Thank you, sir, for sharing your time and knowledge.
@stacenrob1977
Жыл бұрын
Absolutely wonderful
@vintageaudioaddict
Жыл бұрын
Many thanks!
@enigma8088
8 ай бұрын
Excellent presentation! Thanks.
@ppilje
Жыл бұрын
I liked these beautiful pieces of HiFi, when I was younger. Me and You, we're , just about same ages, I guess. Especially, I liked Technics AA Class, I liked their approach when they made AB and A class at the same time. So, back to 88', I designed my own AA Class, with "floating point" qiescent current, in so called esotheric design (the main electronics was closed in aluminum box and the rest of the amplifier was opened - capacitors, power unit, transformer etc, were visible, but safe to handle), and selling them few pieces . Suddenly, I turned to cassette tape decks and designed and selling them as well. I sold, till the War in Bosnia, where I live, 5 pieces, two are still working. One, I would be able to get if I needed, cause I know his owner. Amazing, isn'it. To these days, I couldn't find anyone who was making cassette deck in series, as individual manufacturer. Among these tape decks, I made two double decks, intended for use by DJ's - both unit, left and right, were separated, with two logic control counter, built-in mixer for music mixing, speed control (fine adjustment) etc. Later, I designed and made one pre-amplifier, who was working on batteries, when powered on (the trick used in some manufacturers, later or before I made my own, I didn't know that at that time). Now, I'm not doing anything...heh. Keep up the good work, mr.
@draloha296
8 ай бұрын
Thx for your video. I just discovered your channel. I 💕 it.
@TheGreatTomDix
2 жыл бұрын
Love the way it looks too!
@vintageaudioaddict
2 жыл бұрын
Thanks for watching!
@rafaelcaribbeanaudio3067
2 жыл бұрын
Hi Mr. Chris! seeing about the history of Panasonic, I wanted to know if there is any information about the production of the Pioneer series of the SA-9800 and why these models are not seen in the Japanese market, I would like to know why, thank you for your videos!
@vintageaudioaddict
2 жыл бұрын
Hi Rafael, your welcome and thank you for watching. I don't have an answer for your SA-9800 question. If I learn about anything I will let you know.
@andydelle4509
2 жыл бұрын
Wow, that amp has a regulated split rail power supply. Very rare on a power amp of this wattage. The only other vintage power amp I know of that used a regulated power supply was the Dynaco 120. Regulation does affect the sonic signature of the amp. Good or bad? You have to decide that. A common objection to power amp regulation is it limits dynamics. And that's true as the regulator shown here has it's own feedback loop with a time constant.
@vintageaudioaddict
2 жыл бұрын
Thank you for sharing your knowledge.
@leeanncotrone8369
7 ай бұрын
Watching from. New. York. City. 😊
@marcelocampoamor4761
Жыл бұрын
Hello, thank you for the video. I don't understand the use of thermal compound with transistors that are insulated by plastic obviously so that the heat from the heatsink does not affect them, for them to transmit heat it has to be metal against metal, I think, but I only know about computers, not amplifiers.
@vintageaudioaddict
Жыл бұрын
Your welcome and thanks for watching. There are very small defects in both the metal and the mica insulators that the thermal compound fills in. Would it be the end of the world if you didn't use it?, I'm not sure. All of the vintage audio equipment manufactures used thermal compound on the power transistors to help transfer heat. Also it's used on other transistors like in the power supplies where a lot heat is generated.
@marcelocampoamor4761
Жыл бұрын
@@vintageaudioaddict THANK YOU
@marcelocampoamor4761
Жыл бұрын
@@vintageaudioaddict Thank you very much, I thought it was plastic but it's mica, that clears everything up
@SGM007
Жыл бұрын
What awesome job. I really enjoyed your video in this repair. I’m a new subscriber so will be checking out your other videos. Thanks!
@vintageaudioaddict
Жыл бұрын
Thank you very much!
@davegt27
2 жыл бұрын
my guess the amp belonged to someone that was in the military, sometimes items shipped with house hold goods from over seas back to the US will have name and SSN on them (see the SSN on the back)
@vintageaudioaddict
2 жыл бұрын
I've seen a ton of Social Security numbers on equipment over the years, The back panel, top cover, heatsinks etc. Even non-military folks did it. This equipment was a prime target for thief's back in the day. Now they would be looking for your iPhone. That name scrapped in the faceplate was something I've never seen.
@chaseleim4773
Жыл бұрын
I love Technics amplifiers
@buttguy
2 жыл бұрын
I agree with you leaving it looking exactly the way it does. Some people can't deal with beat up equipment, but I'd much rather have something that works great and shows its history but still is all original than see a poorly done restoration. Looks awesome and I'd love to have this thing in my system!
@vintageaudioaddict
2 жыл бұрын
buttguy, I appreciate that and thanks for watching.
@pd1jdw630
2 жыл бұрын
M. Hoehn. 🤔 isn’t that a writer? Anyway, nice restoration. 👌🏻 well done.
@vintageaudioaddict
2 жыл бұрын
Thank you!
@johnellis3550
10 ай бұрын
No that actually belonged to my son in laws father who passed away . I came across this video and sent it to him and he was just blown away that this found its way on to KZitem.
@markhod1960
2 жыл бұрын
Great chan just came across it. Thanks for your hard work.
@vintageaudioaddict
2 жыл бұрын
Your welcome and thank you for letting me know.
@matthewyates1719
2 жыл бұрын
really good full of information video!!
@bassmandudge
Жыл бұрын
Hi can you help me out...I have the same unit. You talk about the film capacitors at around 1 hour 8min 46... The caps on my driver boards are different they are showing. 58 25vw and .68 25 what would you recommend the values of the film caps.... I couldn't find c201 or C 101 in the parts listings....many thanks
@vintageaudioaddict
Жыл бұрын
You should always replace the original capacitors with the values that are in your unit. Of coarse, assuming that no one changed them at some point from the originals. There are times in the production cycles of these units when component changes are made on the assembly line.
@bassmandudge
Жыл бұрын
Hi thanks for the reply..... I have no idea if they have been replaced..... I have owned the unit for years and before my it was my uncled but I have no idea if he bought it new it not The boards look pretty untouched but they are very different looking caps... One matches all the original the one that looks off value is very different. Do you know what the listed ratings should be...as I said I couldn't find the caps listed in the service manual
@bhupensaloi4267
2 жыл бұрын
Sir, your vision should be taught through opening a training institute
@zeekmx1970
2 жыл бұрын
Wow, That Intro.
@vintageaudioaddict
2 жыл бұрын
Thanks for watching!
@BensSightSoundandAuto
2 жыл бұрын
Looks like it's been used as a PA/DJ amplifier or otherwise been gigged in its life. Definitely not the sort of hard life this amplifier was designed for, more so designed as the powerhouse for a high end rack system home Hi-Fi, but in saying that it probably did the job it was thrown at damn well given Matsushita's excellent construction and design quality.
@vintageaudioaddict
2 жыл бұрын
She had a hard life but is still operating well. Can you imagine any of today's consumer electronics holding up to the same abuse.
@RWL2012
2 жыл бұрын
I wonder if someone thought because it's Technics it was DJ equipment and used it with twin SL-1200s :P
@CoquiAudio
2 жыл бұрын
beautiful PCB design
@vintageaudioaddict
2 жыл бұрын
Thanks for watching
@briang.7206
2 жыл бұрын
I found a broken one at the second hand store appears it was dropped. Hopefully it can be fepaired.
@vintageaudioaddict
2 жыл бұрын
Oh, I'm sure it can be. It probably did more damage to what it fell on. It's a well built amp.
@terrybellomy5851
2 жыл бұрын
I,av got sx1980, needs looked at five more , ten nice speakers,an more here at home. I live in fla ,I need your help
@maxpower78-15
2 жыл бұрын
Oh man. This one is gonna be good.
@vintageaudioaddict
2 жыл бұрын
I hope you like it!
@ABC-rh7zc
2 жыл бұрын
It seems that you didn't replace the main electrolytics on the power supply (unless I missed it). Any reason for that? I've seen the same omission on other rebuilds so I am curious about the reason.
@davidcannon1144
2 жыл бұрын
Love the channel - can you do some cheaper Kit perhaps that people are more likely to find/can afford?
@vintageaudioaddict
2 жыл бұрын
Thanks for commenting. I try to do a variety of equipment. This Technics SE-9600P wouldn't bring a lot if you found one because it's cosmetically beat up.
@wm2357
2 жыл бұрын
I'd love to be a fly on your wall and just watch you working.
@vintageaudioaddict
2 жыл бұрын
Thanks, Man. As you can see it's not all that difficult with some practice and the correct tools. Like 99% of the things in life.
@hegonefishing9122
2 жыл бұрын
My Phillips lab 578 gave up the ghost today, we had a power outage last week which made it give out a horrible pop which blew a tweeter on left side. Well it let out the "magic smoke" today and left channel in protection mode now on that channel. I'm broken hearted....
@vintageaudioaddict
2 жыл бұрын
Oh Man, that sinks. Not sure what part of the world you are in but I'd google "vintage audio repair" and see if there is anyone in your area that could take a look at it. If you think that you could look at it google "Phillips Lab 578" and see if there is anyone that has experience with that model and could help you fix it.
@hegonefishing9122
2 жыл бұрын
@@vintageaudioaddict 😢😭😭😭
@hegonefishing9122
2 жыл бұрын
@@vintageaudioaddict I'm in Northern Georgia
@hegonefishing9122
2 жыл бұрын
@@vintageaudioaddict bought sansui g9000db when I dropped off the phillips...
@JerryRutten
2 жыл бұрын
Nice video! I watched the whole thing. But I missed trying out the output impedance switch, I was interested in… (I’m into high output impedance amplifiers).
@vintageaudioaddict
2 жыл бұрын
Glad you enjoyed it! Thanks for watching! I couldn't hear a difference between the various impedance setting. Maybe with different speakers the result would have been different.
@JerryRutten
2 жыл бұрын
@@vintageaudioaddict Thanks for the very fast reaction!
@JerryRutten
2 жыл бұрын
@@vintageaudioaddict A higher output impedance changes the amplitude response towards the sum of the amplitude response and the (logarithmic) impedance curve. With a very high output impedance a.k.a. a current-source the amplitude response looks like this sum (except where the horn effect takes place: narrowing of the dispersion). So a loudspeaker or driver with a high impedance peak at resonance should give more bass with a higher output impedance (it gives less electromagnetic damping). And drivers with a high inductance should give more highs with a higher output impedance. And probably you get strange effects around crossover points, because there the impedance is much higher.
@apolinarmartinez5723
2 жыл бұрын
Great video!!!!!!
@vintageaudioaddict
2 жыл бұрын
Thanks!!
@jonsingle1614
2 жыл бұрын
You always replace the caps....but what about the resistors ? I never had to engrave my SSN on my my stereo when I was stationed in Germany
@vintageaudioaddict
2 жыл бұрын
Yes, all electrolytic capacitors because they have a limited lifespan. Resistors have shown to be extremely durable through the years and normally do not need replacement.
@walkingrobin9965
2 жыл бұрын
Watched all this video,, was 👍
@vintageaudioaddict
2 жыл бұрын
Awesome thank you! I appreciate it.
@fflynnful
6 ай бұрын
you might want to obscure the SSN number a bit.
@MrDeadrage
Жыл бұрын
i like . good explication details . insane
@charleswilson3439
Жыл бұрын
I had no idea that you lived in FL. Please help me with a product. How can I inbox your?
@vintageaudioaddict
Жыл бұрын
Thanks for writing but I'm just a hobbyist and not a professional. I only work on equipment that is in my personal collection.
@mrdali67
Жыл бұрын
People should really take recapping serious in electronics that has passed the 25 year mark, Its really sad to see vintage hifi or musical gears like vintage synths that is worth a fortune if it is restored to mint condition, Especially if stored for years so leaking caps or batteries can litterally destroy the whole board and make the restoration extremely hard and expensive. Not an expert but have seen the damage made to gear stored vertical for a decade or more and what mess and destruction one leaked cap can do when it is slowly seeping down the board eating everything away. Not saying you should recap every capacitor in a 50 year old equipment if it still works. I'll take a 60 year old Hammond organ with mostly original caps over a recapped version any day as long as they are working properly. Old caps often give the wintage gear more "soul" than modern equip.
@1sostatic
6 ай бұрын
Happy to share a trick from a UK restorer ... the facia ... take high res images of the original screenprint, logos, pot scales, etc and rebuild the facia in photoshop 1:1 . Take the original coat off the facia and all the sscratches out with orbital sander... heat the clean aluminium facia to 40°C. fire a dusting of primer at it, then colour coat matching the original .... take it to a screenprinter.
@victorbloom8286
Жыл бұрын
This was a Ex Military Owner . We were forced to put our SSN . Number and Name on it .
@vintageaudioaddict
Жыл бұрын
Thanks for the info.
@ChickensinHighDef
7 ай бұрын
I figured that was a SSN on the back!
@MrDoneboy
2 жыл бұрын
Thanks Chris..I always appreciate your insight, and expertise on restoring the greatest equipment from the 1970's!
@vintageaudioaddict
2 жыл бұрын
Don, thanks again!
@craigm.9070
2 жыл бұрын
Thank you for walking us through the restoration of this beast. I've always wondered what the person whose SSAN is etched in the back panel would think if they could see their equipment all these years later still performing at or near peak levels with just a little love after 35-40 years. It looked like some real thought went into the design phase when it came to technician access and component locations for maintenance. It sounds very good with just your CD player. Enjoy!
@vintageaudioaddict
2 жыл бұрын
You are very welcome. Thank you for watching. The vintage audio equipment was engineered/built to a standard that is rare to find in electronics today. She's really a great sounding amp.
@NasaraThePoet
Жыл бұрын
Thank you for walking us through every detail it really helps to demystify the process. I would also add that the brand history segments are a nice touch. 👌🏾
@vintageaudioaddict
Жыл бұрын
Your welcome. Thank you very much for your kind words and for watching.
@gime3steps
2 жыл бұрын
Thank you Chris for another outstanding restore, the Panasonic history was an excellent feature into what companies were back in the day and what employees meant to a company's success, you don't see that anymore, they'll replace you at the drop of a hat. Again, thank you !
@vintageaudioaddict
2 жыл бұрын
R P your very welcome. Thank you for the kind words. Your right, it certainly was a different world then today. There doesn't seem to be a whole lot of loyalty between company and employee anymore.
@MichaelYates
2 жыл бұрын
Excellent and very informative video, thanks for the upload
@vintageaudioaddict
2 жыл бұрын
My pleasure! Thank you for watching.
@mauricelabbe518
Жыл бұрын
I work on my own audio equipment. I love it when I bring one of them back to life.
@morrisonAV
Жыл бұрын
Watched the entire video! Took me most of an afternoon to do so, but well worth it. I do have a couple questions: 1. What was the middle output transistor that looked like its metal cover was missing? You stopped the video right before you came to it. Also, since you have the outputs all removed for thermal compound renewal, do you ever test them to see if they are still in spec. Also should be sure to tell newbies to NOT use their old CPU thermal grease on those outputs. 2. Why didn't you show us beginners how to use solder braid? Not everyone can afford a vacuum solder sucker gun like the Hakko. Thanks again for an enjoyable video.
@vintageaudioaddict
Жыл бұрын
Your welcome and thank you for watching. 1. - I think you are probably talking about the thermistor that will disconnect the outputs if the amps heatsink temperature gets to high. 2- No, I never test them unless I have an issue. I do bench test after I do a repair/restoration so that will check them out well. 3.- Well, if you have your amplifier apart and you are using CPU compound, you probably should have never started the project. 4.- I am terrible with using solder braid and I'm not the one to teach anyone about that.
@jaismohamad1497
Жыл бұрын
I'm 72. Just came across this. It brought tears to my eyes. I had one like that after scrimping and saving matched with pioneer speakers. I thought that it will be my last amp/system. Sadly when I was away it was stolen. Only the speakers were left. Sid buy any good system after that as I got married and money was tight. That was the best I ever bought .
@vintageaudioaddict
Жыл бұрын
Thanks so much for sharing. Sorry that she was stolen. Money was tight on my Pizza Hut salary back in the day also so I wasn't able to afford an amp like this one.
@jaismohamad1497
Жыл бұрын
@@vintageaudioaddict I was a school teacher with meager pay. I was also an amateur musician. Most days I had a meal once a day. I cooked myself. So losing a great sounding amp like that really hurts. Let bygones be bygones. You're doing a good job bringing those great amps back to life. Keep it up and stay healthy always.
@R3TR0R4V3
2 жыл бұрын
Great video! I like these longer format ones. 😎 Technics will always be one of my favorite companies.. I have a ton of their equipment.
@vintageaudioaddict
2 жыл бұрын
Technics made some really great gear. I'm glad that you liked the video and thank you so much for watching!
@RanTausi
2 жыл бұрын
@@vintageaudioaddict Many thanks for this great video and walkthrough, I would like to ask you a question regarding Vintage power amplifier I have bought last year, well last year I was lucky guy ! I have bought ADCOM GFA 555 MK2 this power amp is/was built from the 90's 90-95 , I have bought it from a guy which never opened it from the original box , it was originally manufactory sealed box, so it was stored in a closet for more then 25 years. When I got it I connect it to mains and removed the top cover to look inside and checked the bias , of course all is good and new, and it is sound incredibly amazing. So what I want to ask you is should I replaced all the electrolytic caps ? should I be worried about if they will not be replaced , do they are in good shape as we dill of course with new amp that never been used all this years it was stored ? Thanks in advance and continue your great Job ❤👍
@miguelrodriguez918
2 жыл бұрын
Excellent video, and thank you for sharing. My very first hifi system was a Technics by Panasonic back in 1979. In addition, I have a Technics SL-1200MD3 turntable from 1989 in prestige conditions and sounds great.
@vintageaudioaddict
2 жыл бұрын
Your welcome and thank you for sharing. Technics made a lot of great gear back in the day.
@tedtimmis8135
2 жыл бұрын
Great video. I think the face plate can be professionally redone with laser printing of the knob labels. This would dramatically increase its value.
@vintageaudioaddict
2 жыл бұрын
Thanks for watching and for the suggestion.
@robertgregory6678
5 ай бұрын
Greetings to All! When performing final performance testing while monitoring the output waveforms or distortion output, thump the speaker protection relay with your finger. If you see distortion on either channel output, take the relay out, remove its cover and gently polish its contacts with a 4800 grit, polishing paper and then retest the amp. Hope this helps. 😊
@mathiasddkk
Жыл бұрын
About the Remote out speakers I have an 1970s amp with Main/Remote selections and I see inside the remote speakers have a Resistor on the terminal allmost like the remote speakers really are "remote" or some kind of "monitor" and the main is the main
@vintageaudioaddict
Жыл бұрын
Thanks for sharing.
@mathiasddkk
Жыл бұрын
@@vintageaudioaddict no problem! allways good to spread info around so we all can get a littel more info on the stuff we love :)
@Every_Day_Adventure
Жыл бұрын
I remember drooling over these in the Stereo Review magazine. I always circled the reader service number on the card on the back to get the free brochure. My first integrated amp was a Techniques SU-8055.
@gordiefrench5342
2 жыл бұрын
Hello sir I love vintage audio gear mostly power amps This one is a killer looking amp that should live on Nothing is made like this anymore Old pioneer , Technics,adcom,hafler and others are some of the best ever built Love your desire to bring back these jems
@vintageaudioaddict
2 жыл бұрын
Thank you so much for your kind words.
@auggysimcity
Жыл бұрын
pass labs comes to mind
@borlibaer
2 жыл бұрын
Technics Audio had been quite underrated in the 70s up to End 80s. Presumably they didn't pay sufficiant for adverts in the Audio Magazins. They invented a lot highly interesting Products in that area of technology. Technics is back since a couple of years now; possibly because the Vinyl Revival. Finally I got quite a lot of Technics collections, where my first Audio had been SU 8022k ST 8022k, SL Q2 and RS M63 all running still fine without any Service.
@vintageaudioaddict
2 жыл бұрын
Thank you for sharing. Technics made a lot of great gear back in the day. I wish I had more of it in my collection. As you said they are making new audio equipment again and I understand that it is pretty nice stuff.
@fflynnful
6 ай бұрын
The ribbon connector makes it easy to work on, but it's a failure point. Maybe it's why they apparently glued it in place. :) I've been working on this type of stuff since mid 70s. Ever here of United Radio in Syracuse? Great video, it's nice that you included the video from Matsushita.
@ericschulze5641
6 ай бұрын
Hey I'm probably your neighbor, / live in the area, I'm probably around your age worked at county wide in the 80s and 90s are you still working on electronics, I just turned 60 & am getting back into the hobby, also I need some advice/ help fixing my 1920s apex radio I got from my grandparents house in 1970
@tubical71
9 ай бұрын
I do like your style and how you do and explain things. We have to do it just the way you do show it... Take your time, don't rush things. And if you do it, do it completely, careful and carefully just like you're show it.....I'm in and need to thank you 👍😊
@marka1986
2 жыл бұрын
I see what you mean about leaving the battle scars now. Used to work on some pro audio equipment and didn't even give the cosmetics a second thought. Most of that stuff was pretty beat up from use and hauling it around.
@vintageaudioaddict
2 жыл бұрын
Thanks for sharing. The old gear was/is some tough stuff. Today's electronics if it breaks most of the time you wait for trash day and toss it.
@David-ik8wj
2 жыл бұрын
i would guess that amp lived its early life in a school auditorium. Purchased at a surplus auction when the school was closed. I worked for a school district AV repair department long ago. Lots of panasonic and technics equipment were purchased. They offered special pricing to educational institutions and won many bids.
@hardball107
2 жыл бұрын
Thanks' for the video. Love the detail and explanations. I have a 20'x20' room filled with vintage radio's, amps, turntables and receiver's. In my experience, sticky? Spilled beer. I started collecting in the mid 70's. Never threw anything away and collected any radio I cleaned out of someone's basement. That stuff sat around for over 20 years, wife crabbing about the wasted space and all. Then came the internet, parts, schematic's and video's along with shops that specialized in restorations appeared like magic. I'm still going through my Sherwood, McIntosh and Scott equipment to name a few along with the GE, Carlson and whatever radios I have 30 years later and guess what ? My daughter just hit me up for a Sansui receiver, a B&O liner drive turntable and a set of EV studio monitors after raiding my vinyl collection, glad she's a fan of the sound. Now she's eyeballing a Kent floor standing radio and an old Seeburg juke box for her basement.
@vintageaudioaddict
2 жыл бұрын
Your welcome and thanks for sharing. Great story! Ya, beers a good guess. It's great that you have had your equipment for so many years and that you have a daughter who is interested in the gear. This equipment will be running long after you and I are gone so younger people like your daughter will keep it going for the next generation.
@jerryl6634
2 жыл бұрын
Over two hours of footage! Challenge to watch. I can imagine how challenging was to shot it. Appreciation.
@vintageaudioaddict
2 жыл бұрын
Thanks Jerry. As vintage audio is a hobby for me, video editing has become an interest. I have a lot more appreciation for the time it takes to put a video together but it's fun.
@gino3286
2 жыл бұрын
Hi great videos and congratulations for your work Personally when i see open frame trimmers i try to replace them with multiturn sealed ones ... they are more reliable and allow for a more precise bias/dc offset setting. i use a little brush for applying the thermal paste evenly Kind regards, gino
@vintageaudioaddict
2 жыл бұрын
Hi Gino, thank you for watching. Those are good tips about the trimmers and thermal paste.
@gino3286
2 жыл бұрын
@@vintageaudioaddict Thank you ! i have to tell the whole story I had a very nice Nikko Alpha II old power amp purchased after reading great things about it One channel was not working properly I opened it and even if i am everything but an expert i discovered that two bjt drivers on the board of the bad channel had been replaced with wrong transistors ! like pnp in place of npn ! an unesplicable mistake indeed I bought the new bjts, replaced the caps, the trimmers and the boards looked just fine Then i missed the boards ! i had a moving at that time and i was in a bad moment The rest of the amp ended in the trash bean That was a very nice power amp indeed The one channel working had a clean and powerful sound that i liked very much So i have nothing to teach to anyone really I will try to improve when i will have the time Thanks again and kind regards, gino
@g0fvt
2 жыл бұрын
Excellent video, a lovely amplifier too, though I would be wanting to do something about that fascia. Some of the 1970s audio equipment has not been surpassed, generous power supplies too relative to modern gear.
@vintageaudioaddict
2 жыл бұрын
Thank you very much! The vintage gear was built to last.
@bujfvjg7222
Жыл бұрын
Can't stand the wastefulness of our society, by law companies should be made to manufacture products that are repairable!
@vintageaudioaddict
Жыл бұрын
Thanks for commenting.
@ddyoutuve
2 жыл бұрын
Brilliant video, thank you Chris for sharing. I am also a fan of vintage sound equipment. I still have my Sansui G7500 that I purchased new in 1979, and some other bits sourced recently like a Sansui 707a, TU 666, a technics SH 9020, SU 9070, ST 8080. David
@vintageaudioaddict
2 жыл бұрын
Hi David, your welcome and thank you for sharing. It's great that you still have your G7500 after all of these years. I still have my Sansui TU-717 tuner that I purchased in the late 70's. This vintage gear brings back some great memories.
@TSUTENKAKU007
2 жыл бұрын
Thank you for this presentation. Yes, Technics came out with very good equipments back. I think this amplifier had a matching preamplifier, same color and that reel to reel tape deck as well. There were also one or two sets of speakers to match this amplifier came out around that time. They were all good. I had SL-1200 turntable in 1974. Some Sansui have push in pull out circuit board mounting which makes easy to repair, just like this one.
@vintageaudioaddict
2 жыл бұрын
You are welcome! Thank you for watching. The matching preamp is the SU-9600. I don't have that one in my collection but I'd like to find one some day. Technics made a lot of great audio gear back in the day.
@tylorbounmark1858
Жыл бұрын
Excellent, Thank you for your video I think I can do this, just have to take my time.
@vintageaudioaddict
Жыл бұрын
Your welcome and thank you for watching.
@kennethjanczak4900
Жыл бұрын
Great job.. I never been a fan of technics, but your right they make good audio amps. Thanks for taking the time to make the video and share it..
@vintageaudioaddict
Жыл бұрын
Your welcome and thank you for watching.
@matthuston1767
2 жыл бұрын
Hello. Nice to come across your channel. I’m a hard working combat vet. At the moment have some financial troubles my wife and I both work full time but with the three kids and past poor decisions by me left us just making ends meet. Long story a little shorter. I was given a Nikko beta and Alpha 220. I had my hafler eq hooked up and my 5 year old decided to play with the eq and it blew my amp. It popped the fuse so I replaced it and powered it up fuse blew and board smoked. Just looking for some advice. I live in PA I won’t throw it away and I still use the beta pre. I just want it fixed or want to get a trade so it can live on. It was a great amp.
@vintageaudioaddict
2 жыл бұрын
Sorry to hear about your issues. I would do a google search for "vintage audio repair" or "stereo repair" and see if there is someone in your area that can help you out. There is really no way to fix the issue without a tech taking a look.
@tinypurplefishesrunlaughin8052
Жыл бұрын
I love my Onkyo Integra dual mono block amp. It’s beautiful.
@vintageaudioaddict
Жыл бұрын
Onkyo made some wonderful audio gear back in the day.
@SamMiller-x4f
5 ай бұрын
Can you check capacitor polarity with a meter?
@markkemp7608
9 ай бұрын
Tried to set up an account with HiFi Engine apparently is not taking new log ins.
@Scott.586
6 ай бұрын
Same here. Would be nice if someone shared their login so we can access the info. HiFi Engine looks like a great resource!
@keithcoltron3171
2 жыл бұрын
Technics as in nic not nique Technique is a way of carrying out a particular task, as say an artists technique, why do Americans always pronounce things incorrectly? Why not Panasonique for Panasonic, at least you got that correct!!! But otherwise I think your channel is great! very well composed and presented, well done.
@vintageaudioaddict
2 жыл бұрын
Blame it on my youth, lol.
@keithcoltron3171
2 жыл бұрын
@@vintageaudioaddict I blame EVERYTHING on my youth :-) wow looking back, did I really!?!?
@williamjones4483
Жыл бұрын
Way back in the 70's I adopted Pioneer as my favorite brand because they always seemed to deliver much bang for the buck. While I'm not knocking Technics as they make very good equipment, for many people they are quite unaffordable. I would love nothing more than to have a Technics SL-1200 series turntable. Oh, but the price...
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