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300B SET Design Project
http://www.diyaudioprojects.com/Forum/viewtopic.php?f=9&t=2699
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Author:  Woodo [ 10 Oct 2019, 07:37 ]
Post subject:  Re: 300B SET Design Project

“While I had Qians amp I increased the snubbing around the filement rectifiers. Though the hum from the amp was only low I thought it worth while to see if I could reduce it more. I put 0.01uf polys between all legs of the rec. bridges. Qian tried serveral times to find a hum and could not. “

@mwhouston, Hi Mark. I still have (just) audible noise I suspect from the heater circuitry. Above do you mean you placed the caps across the + and - of the bridge rectifier? Are there any other sites you have snubbed that you found necessary?

Author:  gyrene [ 08 Nov 2019, 15:25 ]
Post subject:  Re: 300B SET Design Project

May I ask the board about the 300B schematic?
I see it is one channel.
How do I tie the second channel to the first?
Thank you.

Author:  Suncalc [ 08 Nov 2019, 18:55 ]
Post subject:  Re: 300B SET Design Project

Both channels are shown in the schematic in this post: http://diyaudioprojects.com/Forum/viewtopic.php?f=9&t=2699&start=131

Author:  gyrene [ 08 Nov 2019, 19:05 ]
Post subject:  Re: 300B SET Design Project

Thank you very much.

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