Dave, the difference is normal in most transformers since the number of turns must be the same, but as the winding gets larger the wire length must increase to maintain the same turns, hence the extra resistance.. Mike ----- Original Message ----- From: Dave Aabye <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, February 09, 2003 9:51 AM Subject: [AMRadio] Requium for Tranny?
> Good morning all, > > I need some advice. > > Earlier today my Viking 500 tripped off with the familiar odor that we > have all come to dread. I only lost HV. > > After I got the cover off the PS-Mod unit, I was surprised to see > nothing unusual. Then I started sniffing, and that led me to the HV end > of the plate transformer. I removed the end cover and again saw nothing > unusual....only the odor, which by then was beginning to dissipate. > > Resistance measurements lead me to think that some windings may be > shorted. One side to center tap reads 110 ohms. The other reads 95. > The manual says 100 on either side. The HV secondary shows infinite > resistance to ground, but that is with no juice applied. > > What I'm wondering is whether the 15 ohm difference is conclusive. If > not, what other tests might I make without risking further damage? > > Thanks in advance for any advice, > > Dave, W4QCU > Oak Ridge, TN > > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.449 / Virus Database: 251 - Release Date: 01/27/2003
