Happy Easter! Upon further review I'm seeing mods to try to at least partially convert to 6g6a specs. I've got some learning to do about the difference between the two. Some small changes, and some massive changes like a 0.1uF cathode bypass cap for v3 in the 6g6 which is changed to a 25uF cap in the 6g6a revision!
@Joshua-to5bl
4 ай бұрын
That first solder joint you pulled was hilarious!
@huddyskiba1
4 ай бұрын
Dude your chassis grounds are looking nice! Practice makes perfect. 🍻
@YeatzeeGuitar
4 ай бұрын
Thanks!
@Jim_Cox
4 ай бұрын
If you look at a 6G6-B layout/schematic I think you will see what they were doing, or trying to do, with that other lead coming from the doghouse (marked +230V) but the lead coming from the treble pot looks different and there seems to be an extra cap in there (the blue molded). I didn't look at a 6G6 layout but I saw when you had one up on your screen it looked a bit different than the 6G6-B layout. (Edit - I was typing this while you were typing yours. I did not look at 6G6-A either). haha (Edit 2 - ahh yeah. The 6G6-A seems to have that capacitor that I thought was extra. I'd think they would go for 6G6-B if changing it but you are right and it looks like they converted to 6G6-A, or it is a 6G6-A).
@YeatzeeGuitar
4 ай бұрын
Yeah looks like they're going for 6g6a. It's definitely a 6g6 originally, tube rectified. I'm thinking about just making it full 6g6 then seeing how it sounds and going from there. TBD
@numberfourthree
4 ай бұрын
Wonderful video and nice to see someone taking the care needed to not only make the amp sound good but last for a long time. I would say do take a minute to clean out the amp chassis and especially on the circuit board. I see lots of solder and metal filings, which if left to float around the amp can cause big problems. Canned air, soft brushes and if need be ISO. Some of those boards that have a ton of wax can become conductive as well, though I’ve not seen that so much on the earlier amps, more the later ones.
@YeatzeeGuitar
4 ай бұрын
Thanks! Yeah Ill clean it out once we're all done with a vacuum, compressed air and isopropyl
@matthewf1979
4 ай бұрын
I was wondering what was going on with this one. These amps can really boogie on the normal channel. I mean, loud as all hell, but lots of drive. Just like I like them! Study the phase inverter/presence circuit in the 6G6 if you ever want to build/work on a 5F6A from mid 59 to 1960.
@roncarter2188
4 ай бұрын
As cheap as capacitors are why wouldn't you replace all the filter caps? Amazing what people do or more than that, what are they thinking. Great video and a cool amp!
@YeatzeeGuitar
4 ай бұрын
Wish I knew! 😆
@sgt.grinch3299
4 ай бұрын
I despise shoddy work. If you (unknown Tech) cannot do the work competently, become a Burger Flipper and stop ruining equipment. Thanks for taking free and solid advice.
@robbiebritt7573
4 ай бұрын
What brand is the big solder sucker used at 2:28?
@YeatzeeGuitar
4 ай бұрын
It's a no name cheapie, it sucks (not literally, it's quite bad)
@robbiebritt7573
4 ай бұрын
@@YeatzeeGuitar ok, thanks for the reply!
@Starcrunch72
4 ай бұрын
While this particular patient is clearly bodged up, there were instances of on-the-fly changes on the production floor with a number of these. Leo continued to revise the circuits, however that doesn't explain the clipped components and sloppy work. Trying to figure what someone did to this one 30 - 40 years ago can be maddening. Pick a revision, and go with that.
@YeatzeeGuitar
4 ай бұрын
Yeah I'm debating keeping it the original circuit or going 6g6a. If I go the latter I'll need to replace some components I've already replaced so I might just stick to 6g6 restoration and see how it sounds.
@sluckey08
4 ай бұрын
@@YeatzeeGuitar I'm looking at the wiring to the doghouse. There are 8 wires entering the doghouse and they all look original (except the one black wire that has been spliced). My point is that the doghouse is wired for 6G6A. The 6G6 doghouse only has 7 wires. It may be easy to run amuck here if not careful. Closely relate the layout to the schematic to avoid pitfalls. You know where to look.
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