GU-50 power amp

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wavebourn:
Quote from: k7yoo on May 16, 2007, 03:51:41 PM

Leave the tubes out near the edge so you have enough room for the tank circuit components



Tank circuits will be flat to fit inside of 1U chassis, here are breadboards:



http://wavebourn.com/images/audio/ps_bb.gif

wavebourn:
Here is schemo of power supply (screen grids' and preamp regulator)



http://wavebourn.com/images/audio/pyramidps.gif

However I could use  Zener diode, but 0A2 looks cool and visually indicates presence of a voltage

Also, it looks nice in darkness...



http://wavebourn.com/images/audio/wavebourntubepp.gif

I will have another version: 4x 6L6GC per channel in relaxed mode, for 50W only per channel, with smaller output transformers for better clarity of details.

W1GFH:
Tolly, you do EXCELLENT fabrication work. I can't WAIT to see your version of a 100 watt AM phone transmitter.

wavebourn:
Quote from: W1GFH on May 16, 2007, 04:32:21 PM

Tolly, you do EXCELLENT fabrication work. I can't WAIT to see your version of a 100 watt AM phone transmitter.


Thank you Joe!

I have an idea about screen modulated couple of GU-50 toobs, with AF feedback from antenna output. I'll try it later when my audio business is up and running.

W1GFH:
GU-50 is an interesting toob. Can you tell me what this guy is doing?

http://news.cqham.ru/articles/detail.phtml?id=558

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