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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: Have the 01A preamp up and running... posted by andy evans on September 11, 2016 at 14:13:17:
Andy, IIRC the transformer secondary was 125-0-125. As I understand things you have center tap isolated and are using the full secondary as one winding into a cap input filter. Don't know what you are using for a rectifier (please elaborate).
I'd like to know what the secondary voltage is (end to end) under load. It should be around 250 volts (AC). I'm guessing it might be a good deal less and that, rather than heat, might be a better indicator of over load. It would be nice if you could input a signal (play real music say) into the preamp when measuring this voltage.
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Follow Ups
- Just curious, would you do a voltage check? - Russ57 18:14:52 09/12/16 (1)
- This is how I wired it - andy evans 12:11:28 09/13/16 (0)
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