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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: Because it sounds better :^) posted by Triode_Kingdom on July 11, 2016 at 12:49:31:
We (Bottlehead) mostly use hybrid regulators, with a triode cascoded to a 431-type regulator chip; sometimes we've used gas regulators which are cheaper, and we have Zeners in one current product.Long ago we built a test bed with five or six different regulators including Zeners and gas regulators, plus three or four hybrid arrangements. The audio circuit was a single triode cathode follower, which is the most sensitive to power supply noise and linearity. The differences were small but there were two that tied for first place - we went for the simpler and less expensive one.
The other winning circuit was one developed by John Tucker; there are probably still some of his products around that use it.
Tre', the stock Foreplay II (it's no longer in production) used a gas reg, but the upgraded version replaced it with the hybrid shunt using a 12AU7.
Edits: 07/12/16
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Follow Ups
- RE: Because it sounds better :^) - Paul Joppa 15:01:13 07/12/16 (3)
- Thanks Paul, that's very helpful! - Triode_Kingdom 08:21:22 07/13/16 (0)
- RE: Because it sounds better :^) - gusser 15:15:37 07/12/16 (1)
- Measurements - Triode_Kingdom 08:18:28 07/13/16 (0)
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