[Milsurplus] Re: dynamotor power voltage range

[Richard Brunner]

Re:
" If you have a dynamotor powered transmitter, say an ART-13 or GP,
> something like that, and the battery supply just keeps falling, at
> what battery voltage does the transmitter actually quit transmitting?"

When the filament / heater voltage is too low to support emission, or relays won't 
operate or key.  My guess is about 70% of rated voltage.  Typically, relays will pick-
up at about 70-80% of rated voltage.  Drop-out is a bit lower, perhaps 50% for an ac 
relay, and dc relays may go much lower.

Richard Brunner, AA1P