UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Hallicrafters SX-43 2nd I.F. won't peak

trh01uk · 19th Oct 2020, 10:16 pm

Yes, interesting Lawrence. If I understand your point correctly, the order of tuning the two halves of an IF transformer would effect the result. If we started with the primary and peaked that, then the secondary would be the coil apparently failing to tune?

Presumably the effect can be avoided by switching off the AGC?

Richard

19th Oct 2020, 10:16 pm	#12
trh01uk Octode Join Date: Nov 2010 Location: Ross-on-Wye, Herefordshire, UK. Posts: 1,654	Re: Hallicrafters SX-43 2nd I.F. won't peak Yes, interesting Lawrence. If I understand your point correctly, the order of tuning the two halves of an IF transformer would effect the result. If we started with the primary and peaked that, then the secondary would be the coil apparently failing to tune? Presumably the effect can be avoided by switching off the AGC? Richard