Bill, I'd also suggest a new toroid core. An arc through the core can change its magnetic qualities drastically. I'd also agree with Teflon-insulated hook-up wire, but plastic insulations is much easier to work with.
I once used a scheme consisting of three protective NE-31 neon bulbs for a ground-isolation toroid: one across the primary, one across the secondary, and one between the isolated grounds. Only about 15 minutes after completion of the scheme, a quick NC thunderstorm blew through Grifton. After reconnecting the receiver, I noted the signals had gone "psfsssk." A quick check showed one bulb shattered, and the other two had one electrode each melted! Keep trying: you'll get it. 73 de Charlie Charles A Taylor, WD4INP Grifton, North Carolina ----- Original Message ----- From: "Bill Harms" <[EMAIL PROTECTED]> Subject: [IRCA] resistance across matching transformer > The past couple of days, I noticed that signals on my BUG have > dropped strength. In the process of diagnosing the problem, I > noticed that there is about 12 Kohm resistance across the > transformer. The windings on the antenna side and the lead-in are > supposed to be isolated. Is this normal? I am guessing that > perhaps > there is a short somewhere and that I need to re-wind/replace the > transformer I wound. Any ideas anyone? I would like get others' > opinions before I do surgery on the transformer. > > Bill Harms > Elkridge, Maryland _______________________________________________ IRCA mailing list [email protected] http://arizona.hard-core-dx.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
