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Title: Needed - Source for replacement IF Transformer Post by: W8EJO on July 04, 2005, 03:05:31 PM I am attempting to repair an old TMC GPR90. The 3rd IF has a bad 455kc IF transformer and I need a replacement.
Specs are 95 micro henry; Can size is H= 2 3/4" x W= 1 3/8" x D= 1 3/8"; Q=82. Any help would be appreciated. Title: Needed - Source for replacement IF Transformer Post by: ka0pad on July 04, 2005, 03:47:00 PM If you cant find one, and your feeling adventurous, you could make one per Harry Lytholl:
http://web.telia.com/~u85920178/blocks/if-txfmr_tube_00.htm Harry's got a great site to browse. Larry Title: Needed - Source for replacement IF Transformer Post by: WA5VGO on July 04, 2005, 04:57:34 PM Are you sure it's not repairable? I've been able to repair almost every bad IFT I've encountered. Check the windings where they terminate. This is a very common failure point. Even if everything looks okay, reterminate them. Also check the fixed capacitors to be sure they aren't bad. If everthing else fails, get a K-tran replacement and install it in the old can. No one will know the difference. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Good Luck, Darrell, WA5VGO |