Not battery bias, which I have played with, but a good old voltage divider with a pot or two so you can change the bias on the fly.
Thinking, besides the extra hardware, you could really nail the bias down and get rid of cathode resistor and cap.
Is this another example of status quo or is the a problem in a phono stage I am missing? Now that it is transformer interstaged I can inject in straight in the transformer like the rest of my amps.
Thanks Tom
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Topic - Any reason I have not seen a fixed bias phono stage??? - TomWh 08:03:04 12/09/14 (26)
- RE: Any reason I have not seen a fixed bias phono stage??? - Caucasian Blackplate 11:21:19 12/11/14 (1)
- Electrolytic? - Nickel Core 01:54:43 12/12/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - Naz 22:31:42 12/09/14 (11)
- RE: Any reason I have not seen a fixed bias phono stage??? - Vincin 21:30:21 12/13/14 (1)
- RE: Any reason I have not seen a fixed bias phono stage??? - Naz 01:51:46 12/14/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - Vincin 13:30:33 12/10/14 (1)
- RE: Any reason I have not seen a fixed bias phono stage??? - Naz 13:56:49 12/10/14 (0)
- Do you recommend a specific manufac part number? - mobiasloop 07:45:50 12/10/14 (6)
- Cree CSD01060 - Naz 13:49:31 12/10/14 (5)
- RE: Cree CSD01060 - TomWh 17:42:13 12/10/14 (4)
- RE: Cree CSD01060 - Naz 17:51:32 12/10/14 (3)
- Thanks, What is wrong with a 1n5818 - mobiasloop 07:32:09 12/13/14 (2)
- RE: Thanks, What is wrong with a 1n5818 - Naz 15:03:31 12/13/14 (1)
- RE: Thanks, What is wrong with a 1n5818 - mobiasloop 15:31:29 12/13/14 (0)
- Counterpoint SA-5 - garymuffley 18:00:41 12/09/14 (0)
- Its impractical? - Ralph 10:25:36 12/09/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - Triode_Kingdom 09:40:27 12/09/14 (3)
- RE: Any reason I have not seen a fixed bias phono stage??? - TomWh 11:24:52 12/09/14 (2)
- RE: Any reason I have not seen a fixed bias phono stage??? - Eli Duttman 12:41:14 12/09/14 (1)
- RE: Any reason I have not seen a fixed bias phono stage??? - Michael Samra 13:34:43 12/09/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - Nickel Core 09:03:56 12/09/14 (5)
- RE: Any reason I have not seen a fixed bias phono stage??? - TomWh 11:14:32 12/09/14 (1)
- RE: Any reason I have not seen a fixed bias phono stage??? - Nickel Core 11:23:24 12/09/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - Eli Duttman 10:51:38 12/09/14 (0)
- RE: Any reason I have not seen a fixed bias phono stage??? - drsx 10:11:55 12/09/14 (1)
- RE: Any reason I have not seen a fixed bias phono stage??? - Nickel Core 10:16:04 12/09/14 (0)