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In Reply to: RE: GU50 Lockin Power Amplifier. posted by Spantou on May 03, 2022 at 16:57:22
Hi Spantou,
Thank you for your interest. Firstly sincere apologies for the very poor quality of the attached schematic, unfortunately I do not have access to any relevant software so I have copy & pasted as the best My skills will allow. If anyone can recommend some suitable for Valve\Tube work I would be very grateful.
This is the bare bones of the design if you require the power supply, heater common mode filter & the regulator let me know.
Kindest Regards.
Stay well.
Keep sharing,
Enjoy Your Music.
Tubelcain.
Follow Ups:
Hi Tubelcain,
This is very helpful. Thanks very much! You pasting job is quite good and I can glean most information from it.
Two questions please:
1. I can't quite make out the semis in the CCS for the 6E6Ps and
2: What turn ratio and connection are you using in the LL1620 output transformer.
I have all the transformers in storage as well as a good stash of 6E6Ps and GU50s and I will build it sometime in the future.
Thanks again.
Hello Spantou,
Your welcome.
1/ The semi conductors are the usual DN2540/IXTP08N50D2 Depletion Mode MosFets.
2/ The 1620s are used in the 6K Option B wiring scheme.
Good luck with the build I look forward to you sharing your experiences via this forum.
Kindest Regards
Stay Well
Tubelcain.
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