Ray, It is great to hear that you now have it working properly. Good find.
73, Don W3FPR On 12/26/2012 6:30 AM, Ray Spreadbury wrote:
Hi Don I did a check on the voltage divider resisters as you suggested & found that R75 read 82 ohms rather than the expected 680 ohms! I had accidentally put in an 82 ohm resister (R94! From the buffer circuit) and put the R75 680 ohm resister in the R94 position - they are consecutively fitted on page 59 on the bottom of the board and whilst I check the resistance before fitting I must have mixed them up! I switched them round and the PreAmp now works as it should. The dc volts are now E 1.51vdc, B 2.22vdc & C 12.89vdc. Thank you so much for your help Don, and I feel I've really learnt something as well! 73 Ray G3XLG
______________________________________________________________ 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
