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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Re: FVP5A - line stage done posted by gluca on February 19, 2007 at 08:27:22:
This is the power transformer I used: http://www.triodeelectronics.com/pa7dynst35sc.htmlThe choke (IIRC) is 15h at 100ma, Hammond.
The CCS is a Gary Pimm CCS, but I suspect other CCS's might work just as well. I'd really like to save my penneys and try out the actual "Super Reg" from Allen. At any rate, when I had this on a scope, the hum was low enough that I could not distinguish it from just noise (I'd say less than 2-3 mv). On the heaters for the amp, I used AC on the top, again, just ran it from the rectifier tube's supply (used a 6CA4), and on the bottom tubes I used DC, well filtered (3x 6800uf + 0.1uf).
The only hum I get at the speakers are from the power amp, and that's pretty low, too.
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Follow Ups
- Re: FVP5A - line stage done - SteveBrown 10:36:35 02/19/07 (2)
- try out the actual "Super Reg" from Allen. - Allen Wright 04:35:34 02/22/07 (0)
- thanks! nt - gluca 15:41:20 02/19/07 (0)
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