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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Schematic? posted by Triode_Kingdom on June 30, 2021 at 15:42:24:
Another search this evening located two schematics for the VTA ST-70 driver board. One uses the LM334 current source in the LTP. Tube options include 12AU7 and 12BH7. The other schematic appears to be older. It also uses the LTP configuration, but there's a balance pot instead of a CCS. Tubes are all 12AT7. This is more traditional, it eliminates the risk of the LM334 injecting its own personality, and this one would be my choice if I was buying the kit.
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Follow Ups
- Found It - Triode_Kingdom 20:39:22 06/30/21 (11)
- "if I was buying the kit" - 1973shovel 07:20:27 07/01/21 (10)
- RE: "if I was buying the kit" - Triode_Kingdom 10:28:21 07/01/21 (9)
- To be honest - 1973shovel 12:38:07 07/01/21 (8)
- RE: To be honest - Triode_Kingdom 16:17:01 07/01/21 (5)
- Oops, yes - 1973shovel 17:12:15 07/01/21 (4)
- Pentode Mode - Triode_Kingdom 20:34:55 07/01/21 (3)
- "I think you'll be pleasantly surprised" - 1973shovel 03:39:05 07/04/21 (2)
- Conversion to Pentode - Triode_Kingdom 09:59:51 07/04/21 (1)
- Thank you - 1973shovel 10:16:58 07/04/21 (0)
- RE: To be honest - airtime 13:57:52 07/01/21 (1)
- Ha - 1973shovel 17:20:37 07/01/21 (0)
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