With 6 videos leading up to this final result, I decided to do one long video describing the various stages of the project, to spare you the pain of having to see them all.
The project started with a simple suggestion that I would consider designing a tube tester for the tubes that are most common in the German tube radios that I restore. That gained quite a body of support, and so I set off to try it.
Here is the result after a few design changes, and with some options having clearly pleased some, while not all.
This project is meant to be an ongoing prototype, so I am confident that it will be revisited in the future.
You can now support the channel:
/ mcaldeira
paypal.me/maca...
IF YOU WANT TO BUILD IT YOURSELF ...
Below are various links to pertinent information, including a Google Drive folder that has all the info on the project in support of the video series. Feel free to download it and use it for your personal builds, but please note that I won't be able to provide too much further help with building your project, as time is always scarce.
This project is definitely not for beginners, so only embark on it if you are confident that you can do so safely. If you do, you are obviously doing so at your own risk.
The PCB's can be ordered directly from PCBWay via the link below. If you prefer, you can use the Gerber files included in the info folder to produce your PCB's elsewhere.
IMPORTANT NOTICE: The initial schematic showed Q3 as a BC547, but it is in fact a 2N3904. These two transistors have opposite pinouts, so be careful. The PCB is correct for the 2N3904.
Schematics, Gerbers, Funke Tube Cards, and more info:
drive.google.c...
Link to Shared Project section on PCBWay's website for this PCB:
www.pcbway.com...
Link to Shared Project section on PCBWay's website for Battery Switcher PCB:
www.pcbway.com...
Tube Cards download:
tuberocker.wor...
Full card summary in text format:
www.radiomuseu...
Meters:
«PeakTech® LDP-135»
www.peaktech.d...
You can now support the channel:
/ mcaldeira
paypal.me/maca...
_____HUNDREDS OF OTHER VIDEOS TO CHOOSE FROM____
DIY TEST GEAR: The title says it all:
• Zener Diode Tester - P...
RESTORATION BUILDING BLOCKS: A series of videos showing detailed steps used the restoration process of tube equipment:
• How to safely check th...
HowTo's: Various videos on some simple techniques and projects:
• Extend tube radio FM b...
See also playlists on some other completed restoration projects.
PHILIPS BX750A:
• Philips BX750A tube ra...
TELEFUNKEN OPUS 2114:
• Telefunken Opus 2114 s...
SABA UW-175-Z 3D:
• Saba UW 175-Z 3D tube ...
GRUNDIG 1070:
• Grundig 1070 tube radi...
SCHAUB-LORENZ GOLDY 58 type 3020:
• Schaub-Lorenz Goldy 58...
BUSH VHF64:
• Bush VHF64 tube radio ...
GRUNDIG 3060A:
• Grundig 3060a tube rad...
TELEFUNKEN OPERETTE 8:
• Telefunken Operette 8 ...
GRAETZ SUPER 171W:
• Graetz Super 171W tube...
LOEWE-OPTA MAGNET 3737W:
• Loewe-Opta Magnet 3737...
BRAUN ATELIER 3:
• Braun Atelier 3
LOEWE-OPTA TRUXA STEREO 4741W:
• Loewe-Opta Truxa Stere...
GRAETZ COMEDIA 616:
• Graetz Comedia 616 tub...
SABA FREIBURG W2:
• Saba Freiburg W2 (WII)...
GRAETZ MUSICA 4R417:
• Graetz Musica 4R417 re...
You may also be interested in ...
CAPACITOR LEAKAGE TESTER:
• Capacitor leakage test...
#tuberadios #radiorestoration
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