I blew the front end while tuning an antenna near another that was energised.
David G3UNA > > From: "Dave Sergeant" <[EMAIL PROTECTED]> > Date: 2007/03/14 Wed AM 10:04:57 GMT > To: [email protected] > Subject: [Elecraft] Re: MFJ259 > > I don't have a 259 myself but some of my friends do. It is clearly a > useful bit of kit. > > But I have repaired a couple! I agree about the build standard, not > that hot, and not made easy to repair either with most of the > components inaccessible underneath the board. In both cases they had > been damaged by the user applying the supply the wrong way round - > there is no idiot diode to prevent this. It takes out one of the 5V > regulators and also a LM324 quad op-amp. If you have one it is worth > adding a series diode in the supply to save you the hassle. > > I would also make a plug for a noise bridge. I built the one by KI6WX > which appeared in QST in August 1989 (available to download from the > ARRL site). If you have a suitable portable rig to couple to it does > most of what the fancy analysers can do at a fraction of the cost. > > 73 Dave G3YMC > > > http://www.davesergeant.com > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > 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 > ----------------------------------------- Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam _______________________________________________ Elecraft mailing list Post to: [email protected] 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
