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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: Dynaco ST-70 mod posted by Audio Diamond on December 23, 2016 at 06:51:56:
That is not knowing the B+ voltages for any of this circuit is really quite a challenge. Those voltages do not appear on the schematic. One can decide on operating the output tubes at around 420 to 450vdc Av at around 60ma static dissipation of the cathode , which would be around the average. But what is the circuit boards input voltage. That would be critical information for the proper operation of the regulator and its related functions.
If you can't get that info I think you need to make friends with someone who owns one of these Sonic Frontier units and have him take some voltage readings for you. cheers.
Edits: 12/23/16 12/23/16
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Follow Ups
- You have bigger issues that AC or DC filaments - DAK 19:02:40 12/23/16 (1)
- RE: You have bigger issues that AC or DC filaments - Audio Diamond 04:26:59 12/24/16 (0)
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