[Elecraft] KPA500 gain variation with serial number

[Andy Durbin]

Thanks to all those who have submitted test data.  I shall need more to have any hope of seeing a correlation so please keep it coming.

Requested data:

Serial number;  frequency; drive power; output power (target 500 W); PA voltage (front panel HV); PA current (front panel CUR); power measurement instrument(s).

Only one data point for 20 m band is requested but additional data won't be discarded.

Thanks and 73,
Andy, k3wyc