Beneficial,
The bipolar supply trimmed nicely to +/- 15volts. Positive and negative rails were within 0.3 volts of each other.
Phantom supply is only +33volts. The +48V power supply board is working correctly and the adjustable regulator is setup correctly, but the xformer they choose steps the voltage down too much, to about 28Volts AC. I don't know what they were thinking - perhaps they left this xformer the same for 240VAC and 120VAC operation. At 240VAC, it would make a beautiful 48V. Maybe they felt 33V was okay for phantom. Most mics would still work. I'm sure the console this used to power was run this way for many years.
Connector is pretty old style and I couldn't find a similar one, so the best bet would be to wire a new cable ending in a 5-pin XLR.
Your options:
1) Say thank you, but no thank you to my PSU and keep looking elsewhere.
2) add a cable and use supply as is
3) replace xformer to make +48 output correct and add cable
I would be hesitant about #2, especially if this board were my only mic preamps and I used lots of condensers.
I could do #3 for $250 (supply, 48v fix, and cable).
Let me know,
Jeff
BTW, I'm in Columbia, SC. Are you in Atlanta? As you can imagine, the supply is heavy, so you may prefer to pickup rather than ship.