JLM AUDIO

Thanks Joe.

I did test the ACDC briefly, and it worked like you said.

1 x 22vac to 25vac between the 0v and one AC in will work fine but the update to the capacitor bank will only we half wave 50 or 60Hz causing high ripple. Using 2 out of phase 22vac windings both between 0v and both AC ins will give same unreg voltage but at full wave rectification of 100 or 120Hz ...

Hi there I have a version 2 or 3 ACDC. I want to use it to power a couple ADR scamp modules which require +/- 28vdc. The acdc has been sitting in a drawer for a while. I powered it up today and for some reason i can only adjust the phantom voltage up to about 33vdc and the bipolar rails only up to ...

Hi there I have a version 2 or 3 ACDC. I want to use it to power a couple ADR scamp modules which require +/- 28vdc. The acdc has been sitting in a drawer for a while. I powered it up today and for some reason i can only adjust the phantom voltage up to about 33vdc and the bipolar rails only up to a...

Why not just stuff as per the diagram? It already shows everything you need.

Then you have the 48v there just in case...

Thanks Joe. I have them bolted to the case, so they're pretty cool under load. I'll try adjusting them after they've been on for a bit...

Darrick

Hey Joe, I have a powerstation powering eight 1290's. I've noticed that the supply voltages seem to be creeping upwards. I'll set them for 24.05...use the pre's/test them..etc. Shut them off for a day, turn the power supply back on the next day...and the voltages are up around 24.40? I think this th...

Thanks Joe.

Darrick

Hi guys,

Found the problem with the popping. A very fine piece of copper strand on the backside. Removed, tested good.

Still wondering about the 48v at the input transformer primary?

Hi guys, I have a Go between that's popping when 48v is enabled/disabled; the phase/pad pop when the 48v is activated too. The popping seems to gradually decrease after time at the pad/phase when repeatedly switched. Is this a short? Bad cap? Also, on the channels that do work ok...i have 48v at the...