[Elecraft] KPA500 power off

[Martin Kratoska]

When tapping the ON button to power off the KPA500, the unit still 
remains in ON state unless the rocker switch on the rear panel is used. 
The box is still warm (very little), a quiet 50 Hz hum is barely 
audible. Can be the KPA left in this state or must I use the bottom 
rocker switch to power off? What is the power consumption in this state?

73
Martin, OK1RR
K3 #7554
KPA500 #1565
KAT500 #849
P3 #2752