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Westrex modules, Schematics?
« on: July 22, 2010, 09:26:29 AM »
Hi, i've been given couple of Westrex modules out of a film magnetic recorder.

Trying to find some info on them for possible reconfiguration.

I think they're from the late 60's early 70's, solid state with chunky transformers.

Looks similar to the BBC stuff of the same era but with bigger iron.

Model numbers 32725 with different suffix's  a, b, c, d, e, f, h.

I'll take some pic and stick them up here soon.

Westrex was a division of Western Electric.

Who made their transfomers for them?
Maybe someone has a transformer handbook for the 70's ?
Input transformer is marked 32750-G, out is 32750-D.


Re: Westrex modules, Schematics?
« Reply #2 on: July 25, 2010, 07:59:20 AM »
So i've been searching and searching but havent found anything apart from these.
Looks like the transformers are suitable for mic amps but i could really do with a schematic.


Re: Westrex modules, Schematics?
« Reply #3 on: July 25, 2010, 10:05:36 AM »
You see Triad iron on the USA Westrex stuff; no idea if they manufactured in UK as well.  They look Triad.  The +12 dBm rating is curious; low for the era. 

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounded g


Re: Westrex modules, Schematics?
« Reply #4 on: August 05, 2010, 06:03:36 PM »
cheers Doug.
Must be fairly rare i suppose as they were only used in the big film studio's.
These particular ones came from Pinewood.


Re: Westrex modules, Schematics?
« Reply #5 on: January 12, 2011, 09:17:32 AM »
Just spotted these on the shelf...
friendly schematic bump? :P
Still haven't got round to tracing the circuit out....


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