[Elecraft] Proper resistance for Q7 collector

2005-02-02 Thread Neal Campbell and Sarah Ferrell
I am progressing through debugging the bad resistance reading between ground and the collector of Q7 on the RF board. I have it up to 900 ohms now. The manual says '500' is a passing resistance. What is 'normal'? Is 900 ohms a sign that all is well? 73 de Neal

RE: [Elecraft] Proper resistance for Q7 collector

2005-02-02 Thread W3FPR - Don Wilhelm
Neal, The exact reading depends on your particular DMM. The only real way to tell is to use your DMM on another K2 and compare (or find someone else using the same DMM). With my K2, I read about 600 ohms when I first apply the test leads and climbs to about 1000 ohms after a time - then

Re: [Elecraft] Proper resistance for Q7 collector

2005-02-02 Thread Neal Campbell and Sarah Ferrell
Well, just in case anyone searching the archives for hints on a similar situation, I had a solder bridge on the top of the RF board between the case of Q5 and the lead from R44 that fed from the bottom, just impossible to see without magnification, etc. Probably no one will make the same