[Milsurplus] What's With 2,000 Volt, 50-Watt Xmtrs??
Peter Gottlieb
nerd at verizon.net
Thu Nov 18 08:32:14 EST 2010
In what way is the sound different when using higher voltage? In transmitter
usage, is there any measurable difference in the output signal between the two
types?
On 11/18/2010 6:49 AM, Bruce Gentry wrote:
>
> I make a guess the early oxide and thoriated tungsten filaments could
> not handle higher current densities. Older AM broadcast transmitters
> used about 5000 V. for a 5 KW. and 18,000 for a 50 KW. I have a couple
> Western Electric audio amps that use push-pull 211s and 845s with
> about 1000 V. on the plates. The 211s give 15 watts and the 845s about
> 65 watts. I strongly prefer the sound of audio amps using high plate
> voltages at modest current over lower voltages at high current.
> ______________________________________________________________
>
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