I jumper 2 and 3. You can still turn off the P3 if desired but when power is applied from the K3 or elsewhere, the P3 automatically turns on. Best of both. ----- Chuck, KE9UW -- View this message in context: http://elecraft.365791.n2.nabble.com/Power-pins-on-P3-tp7616432p7616463.html Sent from the Elecraft mailing list archive at Nabble.com.