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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: First find the schematic and bridge the chokes and find out their inductance.. posted by grhughes on January 30, 2007 at 07:32:14:
Actually, I just bought an ESI 250DE Impedance Bridge, but it's currently at a precision measurements lab getting calibrated. Fortunately, I teach at a university with strong technology programs, so all I had to do was drop it off on the way to work. Someone had monkeyed with it and gotten the calibration off.I've posted a link here with the circuit the power transformers were originally designed for. (I have two complete power supplies.) All the chokes are the same. There are two for each power supply, as the inputs of the two B+ supplies. Both B+ supplies are for power tubes, the higher one for two 7591s and the lower one for four 6BQ5s. Hammond power amps almost always used 6V6s, 6BQ5s, and a few 7591s; they never seemed interested in the 6L6s, 6550s,or EL34s.
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Follow Ups
- Re: First find the schematic and bridge the chokes and find out their inductance.. - David Anderson 12:33:20 01/30/07 (1)
- I would just build on what you have..... - grhughes 13:58:17 01/30/07 (0)
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