Telephone Set H Mk III
We bought one of these today at a boot sale for £6, my son is involved in WW2 re-enactment.
It all seems to work, we tested it using a stereo earpiece connected to the L1 & L2 terminals, and used one earpiece as a mic and the other in the ear.
Can anyone please confirm what the resistance of the original mouth and ear pieces should be. I measured each as about 27 ohms, which seems very low and would not help efficiency when used with a long run of cable.
Up to what length of cable were these used with.
Thanks
Mike
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