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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: Octals-med mu, low plate R posted by deafbykhorns on January 2, 2017 at 18:13:30:
Octal only is tough. Would that there was a 6SM7, whose characteristics were like either the 12AY7 or the 12AV7.
Perhaps some "trickery" will help. With its mu of 70, the 6SL7 has too much gain and it's a wimp. Buffering the plate with a DC coupled ZVN0545A MOSFET disposes of the wimp issue. You could set up 6SL7 LTPs to reduce the effective mu to 35. A possible plus to the LTP is the ability to select absolute polarity.
Eli D.
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Follow Ups
- RE: Octals-med mu, low plate R - Eli Duttman 10:21:36 01/03/17 (1)
- There is a 6SM7 (well nearly) - Mike C 16:36:01 01/23/17 (0)
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