Hi to all. Maybe someone has had a similar problem and can give me a hand. My ART-13 works fine on the lower frequencies, below 6 Mcs. But above 6 Mcs, no grid drive. So, problem seems to be in the 2nd multiplier stage. I've done all the usual things, changed tubes, made resistance measurements, from the tube socket, etc.All was within specs. Also, someone suggested maybe a leaky coupling cap between the 1st and second multipliers. So, I replaced the cap by wiring a new one into an electrically equivalent position. No joy !! Before I attempt to remove the whole multiplier sub-assembly, does anyone have any thoughts or suggestions. Thanks !
73, Lock W1ZD/7 ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list 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.
