Power supply upgrade for older Quantum Audio Labs console

Hi,

I have a Quantum QM-168 console:

http://img.photobucket.com/albums/v357/fazeka/Quantum/Quantum1.jpg

that I wish to upgrade the power supply for.

This is the schematic of the current power supply:

http://bolstad.net/quantum/QM-168%20schematic%20power%20supply.jpg

It consists of a "project box" with a transformer in it ("External to the console" dotted box of the schematic above) with a molex connector that connects to the console (having another molex connector) with a cable. The rest of the supply (to the right of the dotted box in the schematic) is inside the console.

So I purchased this Acopian TD15-250 off eBay:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350182771912

in hopes to help my console run on "cleaner" power. I actually wanted a supply with more amperage, but it seemed anything with a higher rating is a custom job for a 15V having +/- 1V (this to get me to 16V; most other 15V power supplies with higher current ratings are only +/- 0.5V)

So I was reading the instruction sheet here:

http://www.acopian.com/pdf/AcopianDualTracking.pdf

and I was thinking about putting the Acopian in a rack case, wire up the supply with a DPDT switch and a fuse on the hot leg and maybe even a MOV or 1uF cap across the AC terminals.

I was going to remove the jumpers that connect the voltage outputs and their respective sense outputs so I can have them connected at the load.

I guess my question is, when I connect the power supply DC output to the load (the console), am I bypassing everything from the rest of the supply as well (i.e., from the diode bridge to the transistors), connecting the Acopian output straight to the +16, -16 and common terminals?

Also, does anyone have anything else to suggest or recommend based on my plan? This is my first power supply upgrade.

Thanks,
Chris

The Power-One / Condor types easily adjust up to 16 volts, and are what Quantum used for their larger consoles.
Does your's also have a separate Molex (24vac) input for the 48v phantom power?

Bryson said:

The Power-One / Condor types easily adjust up to 16 volts, and are what Quantum used for their larger consoles.

Click to expand...

I think my Quantum is older (1977-ish) or came from a different series; the transformer is mounted in a separate "project box" (looks like it came stock like that with the board) though there are no markings on it.

The larger Quantums I've seen were "QA"; mine's a "QM". I think mine was a "cheaper" (something on order of $5k back in the late 70s, I'm guessing?) version of the bigger consoles. "QM" series Quantums seem to have been made for the broadcast industry or the budget-conscious studio (mine was specifically made for audio multitracking).

Bryson said:

Does your's also have a separate Molex (24vac) input for the 48v phantom power?

Click to expand...

It doesn't have phantom, though it was available as a factory option. Thus no separate Molex...

BTW, I have verified the supply yesterday. Adjusting the pot fully CW results in 16.07 and 16.04 pos. and neg. respectively, which should allow for the slight voltage drop in the wire from the supply to the console.

Is it OK to run the supply with the adjustment pot maxed out like this? Thanks!