11 Set stuff

[Bruce MacMillan]

Regarding David's voltmeter:

These were very common in the 1920-30's. Every repairman carried one. Many farmers had battery powered sets so it was usefull to test the A & B batteries.

The one that was issued with the 11 set is "voltmeter, pocket, 250V #2"

Useful for 1st echelon work and checking both LT & HT batteries. Besides the two power supplies available the 11 set also came configured for battery operation with four 60V batteries providing a 240V supply.

Regarding Ron's ammeter:

This ammeter measures radio frequency current going to the aerial. It doesn't measure battery current. There were two issued depending upon the power supply used. The LP supply had "ammeter #1 350mA" and the HP supply had "ammeter #3 1A". Very useful when tuning the transmitter.