[Elecraft] 1500w K2/10?

[Victor Rosenthal 4X6GP]

If there are worries about connecting the relay control circuits 
together, one can put a diode in series with each one (anode toward the 
amplifier). Connect the cathodes together and ground them to key the 
amplifiers.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/

On 21/12/2022 22:15, john at kk9a.com wrote:
> I think this only works if one of the amps is off.  I you want to use both
> amps simultaneously to obtain 1.5KW, there may be an issue with the two
> relay voltage sources.
> 
> John KK9A
> 
> 
> Jim Brown K9YC wrote;
> 
>> he KXPA100 MANUAL SHOWS THE ability to use a Y rca keyline cable, one end
> going to a kxpa100, the other going to an external amp, in my case a
> kpa1500.
>> Will this work?
> 
> Sure, as long as both amps use the same logic for keying. I've done it
> for years with a K3, switching between a KPA500 and Ten Tec Titan, using
> relays to switch inputs and outputs.
> 
> 73, Jim K9YC
> 
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