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 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

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It is currently 17 Apr 2021, 19:19

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PostPosted: 08 Feb 2021, 10:03 
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hello,

looking for schematic using hammond 1615 output tranny. maybe with 6V6?

thanks,

-f


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PostPosted: 08 Feb 2021, 16:41 
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5000Ω Plate to plate impedance is a little low for a pair of 6V6s. Are you open to using a set of 6L6s instead?

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PostPosted: 09 Feb 2021, 06:00 
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yes I know, usually 8000Ω is used with pair of 6V6. I saw one amp(no schematic available) using 6V6&1615, but i can change tubes to 6L6. i have National Electric 6L6WA(black bottle) tubes ready to go. this tube has a maximum anode voltage rated to ~350VDC(pentode) and ~275VDC(triode), am i right? i also have lots of 6SN7 tubes..


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PostPosted: 10 Feb 2021, 12:48 
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how about this schematic with lower anode voltage? maybe 250V...


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PostPosted: 10 Feb 2021, 19:16 
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Might be ok. The only thing I would do is not direct couple the gain stage with the concertina phase splitter. I'd self bias the splitter.

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