OK, I just crossed that bridge a few days ago. I didn't think I had a BFO. Look for an envelope marked E850099 and/or 41UH INDUCTOR, 5%. Or it may say L33 on it. Is that what you mean? It should be very fine wire wrapped many times around a toroid. Hope it helps. Roland in Stockton K2 #3090 ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <elecraft@mailman.qth.net> Sent: Sunday, July 31, 2005 1:13 PM Subject: [Elecraft] No BFO
I'm building K2 #5020 and have no BFO. So far everything else works. What I've done so far: Checked for correct components - OK Checked for correct orientation of parts - OK Checked solder connections - OK Checked for solder bridges - None found Checked L33 - OK -Good continuity and no damage visible Checked varactors D38 and D37 - Checks good as diodes Checked associated caps - None shorted Checked resistor packs - OK Measured voltages at U11 - Pins 1 thru 5 & 8 - OK Pin 6 - 5.01 vdc - should be 6.1 Pin 7 - 4.66 vdc - should be 5.6 I also have no audio from the receive circuit. I figure this is due to lack of BFO. The side tone works fine so I know the audio amp is working. Help!! Thanks, Tom WA7DET _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
