Re: Field Telephone Type F Mk II - Help needed
Here are a couple of induction coils from telephone sets "F". The one on the right is the buzzer version, the one on the left is an induction coil without a buzzer.
Incidentally, if you replace the carbon transmitter insert with a modern electronic one, my experience is that you need at least 4.5V to operate it. I use a "flat" battery pack - seems fine, but my Fs only get occasional use.
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