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Old 16th Jul 2017, 7:11 pm   #1
crackle
Rest in Peace
 
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
Default 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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