Try Michael Gore in San Francisco at Bay Area Studio Electronics (BASE). He knows the Harrison's and MCI's very well.

I think the addy is base@pacbell.com, but I may be wrong.

Link removed

Don't know how much Harrison stuff he does, but Randy Blevins might be helpful.

Depending which board you have, The Harrison was up with the best. I can't remember now which one I had ( old timers desease ), but back in the time, when the Harrison PS went out it usually took out a lot of other components too. I believe on the PS, you have +18v, -18v, 48v, +15v, and -15v. Sometimes when a cap would blow, and you hope it's not the phantom pwr, but if it is, that means you have 48v going to the 15v or the 18v rail. What I eventually did was to have a PS made from parts from a military surplus. The military tolerences and specs far exceede the original, and will no doubt outlast the board. I keep in touch from time to time with the owner of that board and in 25 years, the pwr supply is still running with no problems. I went and had a PS made for my Neve about 6 years ago, and it is rock solid. The person who builds these is in Pomona Ca. and charges around $500.00

hey thanks guys. as a note the power supply does operate without the resistor, the voltages come out at +/-18 +/-15 +48 and -24 all holding steady plus or minus no more than a volt. but i dare not plug it into the console until i know for sure its put together exactly the way it was first built, know what i mean. but i emailed randy and michael (base10@pacbell.net) we'll see what they say. appreciated!

I see you have 24v too. Do you have mute automation?

If this might help you, I have stored away the schematic of my old Harrison PS before I had the new custom built PS. I know that it didn't have a 24v rail

I believe that the 24v is for mute automation. My E-mail is down, so if you could post if you recieved the FAX of the schematic of the PS.