Dan, Yes, the 2N2222A transistors are for Q11 and Q13. Many times a PA transistor failure will take out those as well. Yes, the 1/2 watt resistor is for R50. If you have an old K2 with the 1/4 watt R50, replace it with the 1/2 watt. Only the rear (heatsink) half of the bottom cover needs to be on for the test. Do NOT transmit with no heat sink on the PA transistors - that is a sure way to send them to their early demise. Try it first at 2 watts - if all is OK, then try 5 watts, and finally try 10 watts. You can also try maximum power if you want - keep the transmit (TUNE) times short for the 10 watt and max power tests.
Dan Grizzard wrote: > Hello all, > > I just got my PA transistor replacement kit and have a couple of > items I want to clarify: > > 1) the 2n222a transistors I assume are for Q11 and Q13 > 2) the resistor coded brown-green-gold is for R50 in the Q6 driver > circuit. Only one in the entire rig. > 3) does both sections of the bottom need to be on for testing or just > the front half? > 4) when adjusting the transmit power is the maximum power out limited to > 2 watts, 5 watts, 10 watts respectively at the 2 watt, 5 watt, 10 watt test > level? > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
