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whats the model number? 636 or 686???

Started by Babybearjs, April 17, 2016, 08:11:50 PM

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Babybearjs

OK guys... here you go.... I got 2 of these from Cliff. so, what's the proper model number? is it a 636 keyset, or a 686?
John

TelePlay

Or 39-89?   ;)

unbeldi

My first inclination would be that 39-89 is the design or manufacturing week of the PCB, week 39 of 1989.

Victor Laszlo

#3
Why not take a look at the practice for the phone that it came out of and see what the manufacturer says? It's probably this one: Cortelco (ITT) 256400-MBA-40M.

unbeldi

Quote from: Victor Laszlo on April 17, 2016, 08:29:21 PM
Why not take a look at the practice for the phone that it came out of and see what the manufacturer says? It's probably this one: Cortelco (ITT) 256400-MBA-40M.

Yes, I do think this is an ITT part.

Babybearjs

are you sure it not a 686E??
John