Hmm... just out of curiosity, couldn't I measure the IF output using the XG2 signal generator set to 50uV? How strong does the signal have to be?
I'll go ahead and check the junction voltage at R9 as you suggested. Mni tnx! James K2QI -----Original Message----- From: Alan Bloom [mailto:[email protected]] Sent: Wednesday, January 06, 2010 4:44 PM To: James Sarte Cc: Elecraft Subject: Re: [Elecraft] K3 output buffer modification Unfortunately you won't be able to measure an RF signal at the IF output connector with a meter or oscilloscope unless you have a REALLY strong signal at the K3 antenna input. As a general sanity check, you could do a DC voltage measurement on the JFET just to make sure it is still drawing current. I don't know the exact voltage, but I imagine you should get a volt or two on the JFET source (R9 source resistor). That does require taking the bottom panel off the K3 again. Alan N1AL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
