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Old 14th Nov 2017, 11:38 pm   #35
russell_w_b
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Join Date: Jul 2007
Location: Penrith, Cumbria, UK.
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Default Re: GPO 332 transmitter issue

Quote:
Originally Posted by ThePillenwerfer View Post
Configured as it is in the photos that will be the resistance of the receiver, though it's higher than I'd expect. It may be different on a Handset 184 though.
An older 1L receiver is 80 Ohm; a more modern 2P is about 56 Ohm. I've commented on this on post #34 as I'd overlooked a comment about reversion to how it was wired originally (there being a path back through receiver and ASTIC as a result).

If Bigus craved authenticity the wiring could be put back with the colours as you suggest, but it's a bit of a fiddles rewiring inside the bakelite mic bowl on the handset. I think I'd be getting the thing to work first!
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