Jeff WK6I wrote: hi Ron - ol' #525 has been getting pretty scratchy lately, and it has the AF Pot Mod. I guess they just get old and scratchy like the rest of us...;-)
I found my misplaced XG1 the other day and went around measuring rigs. #1250 was singing along at MDS=-136dBm, but #525 wasn't close (haven't used it since Field Day, I'm afraid). After a bit of poking around, I found a marginal solder joint had finally gone bad in the T-R switch (RFC2). Some new solder and good as #1250! ------------------------------------------------------- Hi Jeff: Yes, the audio pots do get old. That's why I didn't suggest the mod as a "fix". Bill's K2 pretty obviously has a worn-out pot, but it's a good investment to do the mod while its apart to install a new pot. It can be downright scary how long an unsoldered joint or a poorly soldered joint will work just fine! They are "time bombs" waiting sometimes years before showing up as an intermittent for other weird behavior. Ron AC7AC _______________________________________________ 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
