what kind of batteries do i use for my Field Telephone Set D.MK.V ?

[Jon Skagfeld]

Originally Posted by jeff davis

I used two d cell
regards
Jeff

"X" cells were originally used. Now unobtainium, they were 1 1/2 Volts with brass screw terminals. Two were used per phone. The cells were carbon zinc...really old battery chemistry and subject to leakage.

I've heard of, but not seen, modern "D" cells used in a jury-rigged fixture.

[jeff davis]

looked at my sets and they are different there is not enough room for the d cells in the MK5 I have mine installed in MK1 sets.try to post pics
Jeff.
the battery holders came from Princess auto a few years ago.

[jeff davis]

Some more pics.
The old Batteries are out of My MK5

[rob love]

I was able to get some of the old X batteries from my unit sigs stores back in 1978 for one of the remote units that went with the 19 set. I ended up donating the set with batteries to the regtl museum, not realizing I would never see that style of battery again.

[Ralph Volkert]

The batteries are for talk voltage. 3 volts is all that is required but the actual voltage is not critical. Use whatever will fit. For testing I used 2 AA batteries in a holder. It worked fine. C, D, or X cells would last longer. I would hazard a guess that a 9 volt battary would work fine. dont forget That normal telephones have had a working voltage of 48-54 VDC from the Telephone company for ever.

I use mine as an intercom from the garage to an antique crank telephone in the kitchen. It works fine. It also amazes people when the old Hercules oak wall phone rings!

Oh yeah I work for a telephone company so when I say I tested it I mean I really tested it! And it passed!

[Ralph Volkert]

Oh incase any one was wondering the crank on the phone supplies the AC ring voltage, to ring the bells at the far end.

[Dean (Ajax)]

If you go to the Source Shop you can get a plastic D Cell Battery holder for about $3...it fits into the battery compartment..I have run many of these phones using them.

Dean