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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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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: It is not so bad. posted by sser2 on April 4, 2007 at 11:51:31:
but what about the ratio of the filament gradient to the bias voltage? 20V of a 100V bias is a lot different than the 2.5V of a 50V bias for a 45.As ivan mentioned, the tube to test this with would be the 304TL which you can configure as a 5V 25A or a 10V 12.5A tube. It is interesting to note that when wired for 10V operation two of the plate will cheery up before the other two, and when wired for 5V operation they all cherry up at the same time.
I actually think it would be kinda cool if listening experience showed the 10V connection of the eimac to sound better :-)
dave
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Follow Ups
- Re: It is not so bad. - dave slagle 16:07:08 04/04/07 (8)
- Agree. - sser2 19:38:14 04/04/07 (7)
- Agree but not an issue because... - Triode_Kingdom 07:28:47 04/06/07 (5)
- It depends. - sser2 12:31:23 04/06/07 (4)
- tx-rectifiers-lclc-cmc-hum pot-filaments - nc 12:48:53 04/06/07 (3)
- Right. - sser2 13:23:15 04/06/07 (2)
- More research & an article by Lynn Olson - nc 14:14:00 04/07/07 (1)
- Sure it won't hurt to have more. - sser2 16:46:26 04/07/07 (0)
- Re: Agree. - dave slagle 20:33:44 04/04/07 (0)
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