[Elecraft] KPA500 Control

[Andy Durbin]

"Are there lines either in the AUX DB15, or one of the other connectors that can be used to turn the AMP on in operate mode and later release it turning it off."

No, not exactly as you described.  You have to apply a momentary ground to pin 8  - as revealed by a quick review of the KPA500 Owner's Manual.


KPA500 AUX Connector Pinout (DE-15 Male)

POWER ON/OFF 8 IN Pulse low to turn KPA on or off – do not hold low!

Menu selection:

PWR ON  // STBY or OPER default STBY // STBY: Amp is in standby mode when first turned on.  OPER: Amp is in operate mode when first turned on.

Andy, k3wyc