You really need to use a scope to trouble shoot this kind of problem. Bob Macklin K5MYJ Kent (Seattle), Wa, "Real Radios Glow in the Dark"
----- Original Message ----- From: "Ed Sieb" <[email protected]> To: <[email protected]>; "Discussion of AM Radio in the Amateur Service" <[email protected]> Sent: Wednesday, December 31, 2008 10:55 AM Subject: RE: [AMRadio] AM audio problem > Sounds like an ultrasonic oscillation. > Some extra bypassing or extra suppressor resistors in series with the grids (or plate) of > the first 12AX7 might be in order. > > Ed, VA3ES > > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/[email protected]/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > To unsubscribe, send an email to [email protected] with > the word unsubscribe in the message body. > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/[email protected]/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [email protected] with the word unsubscribe in the message body.
