Don:
While I had to use my 50 MHz scope to take the RF readings, the big signal
drop you told me to look for seems to be at the Pre-Driver output. Instead
of .120 Vrms, I am looking at about 0.20 Vrms or less. Not much difference
when Tune is pressed (key down). The T-R switch output is also very low but
is (apparently) supposed to be. I have checked all resistor values for the
Pre-Driver amplifier circuit and they are all correct markings. Tomorrow I
will concentrate on those solder joints as well T1 and T2. Sound right
Thanks
Brian
http://home.comcast.net/~b.denley/index.html
______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html