View Single Post
Old 6th Sep 2009, 5:59 pm   #7
Dave Moll
Dekatron
 
Dave Moll's Avatar
 
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,118
Default 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.
Attached Thumbnails
Click image for larger version

Name:	F-inductors.jpg
Views:	902
Size:	36.6 KB
ID:	28521  
__________________
Mending is better than Ending (cf Brave New World by Aldous Huxley)
Dave Moll is offline