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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: Fascinating, and a question... posted by Lew on October 31, 2006 at 07:33:02:
To answer your questions, I hazard to guess that a low DCR power supply is a useless investment for a phone preamp application. The change is current draw for a phono preamp, which only has to swing a few volts, is minimal.There is another approach. If you have been reading John Broskie's excellent web site (www.tubecad.com), he has for many years pushed the importance of 'constant current draw' by each stage of an amplifier. For example, a differential amplifier will draw a constant current from the power supply, a behavior that pretty much eliminates a need for a 'low DCR' supply. John goes into other configurations with this property.
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Follow Ups
- Another approach - mikeyb 10:24:47 10/31/06 (4)
- I'm so glad you brought that up - Lew 11:45:26 10/31/06 (1)
- Same benefit on CCS load - ychungmd 15:17:52 10/31/06 (0)
- Re: Another approach - Triode_Kingdom 11:19:20 10/31/06 (0)
- Re: Another approach - drlowmu 10:41:14 10/31/06 (0)
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