I just finished this K2 rev A with most all mods incl B and cannot do the transmitter alignment. The finals seem to be oscillating at about 450 KHz on all bands. The power goes to max (17 watts), the current goes to 3 amps, on the Bird meter (50 watt slug) I get about 13 watts showing. The frequency on the scope (and aux counter) appears to be about 450 KHz. I get this frequency on W6 (about 5 vpp and as well larger at the collector of Q6 (about 25vpp) and of course at the collectors of the finals but with a lot of ringing at a higher frequency and at the input to the low pass filters, about 40 vpp...same on all bands. I've checked the transformers, etc for wiring and they appear to be ok. No shorts on the final collectors, etc. Kind of looking for some previous experience with this or some idea of where to go.
I also have the latest firmware, rev 2.04 and have no side tone. With the firmware from March 2000, rev 1.04 I have sidetone. The instructions (various years) say the side tone comes from U8 pin 4, I get ac voltage there, the menu says U8-4, but no sound. Thanks, Chuck KE9UW ______________________________________________________________ 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
