Just a quick note to say thanks to Gordo publicly for sharing what he has for the 4370 to me in Pdf's This is a great discovery for me to actually have something to work with and hopefully will save a lot of trial and error in getting it going. I'm not as nervous to hook up a power cable and see if it works as before.
I'm told from the guy I got it from that mine was "new in 72" and were popular out here in the Maritimes:
"Those mono McCurdy boards were used in a lot of stations. CKDH's was new in 1972.
CIHI in Fredericton, CKCL Truro, CKCW in Moncton ( which was left behind for a French AM station to use when they moved to 1000 St.George ). Bruce Clarke, now deceased, was the engineer for the French station when it closed. Even CTV in Moncton had one. And, I think CKDU signed on with one in the 70's."
Makes me wonder how long they were in manufacturing production...probably into the mid 70s.
I myself have a local electronics shop I get components from on a regular basis. comes in Handy, as The Source has virtually no components anymore compared to when they were radio shack, but they do still sell soldering irons. Always good to have one place you can go to when you start to play with this stuff.
Still looking for specifics for the 8820. It's weird, as 3 of the modules seem to be working well, the 4th is questionable. I can hear module hiss, even noise turning up the pots, but will not pass audio on the existing cables left on the terminal strips. I speculate that the 4th power module somehow powers the input portion on the faders. I also suspect the plug in connector in the rack is shot, as it seems very loose whenever I try to plug it in. It's a 24 pin amphenol connector and after some research, found the details on the exact part online. Will order in a replacement in the near future to see if that's the case. Once I get all the power modules working well, that will be the major hump unless another hurdle awaits. Ahhh, the joys of playing with vintage gear, and to think I still have a head of hair...
Thanks again for all the input folks.
Scott S.