[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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