04-02-2019, 09:19 PM
Bingo! You nailed it Terry. Open primary on the 2nd IF transformer. I removed the can and checked it again, it's definitely an open coil, not a shorted wire. That's a first for me, an open IF transfomer. Wonder what caused the failure.
So...this has me digging through my parts boxes. I parted out a 1941 Philco console chassis with a similar tube count years back and I THINK I found a suitable IF can that I can use. It has the 51K resistor inside, and the two small value capacitors. The primary and secondary ohm values are a bit off, but not drastically. At this point, I have nothing to lose trying it. The original would need to be rewound and I have never tackled rewinding an IF transformer before. Rewinding the ANT and OSC coils were bad enough on the model 89 and 84's I've worked on!
Will tackle installing it tomorrow night after the daily work grind. Stay tuned...I hope I will be able to with this IF can!
So...this has me digging through my parts boxes. I parted out a 1941 Philco console chassis with a similar tube count years back and I THINK I found a suitable IF can that I can use. It has the 51K resistor inside, and the two small value capacitors. The primary and secondary ohm values are a bit off, but not drastically. At this point, I have nothing to lose trying it. The original would need to be rewound and I have never tackled rewinding an IF transformer before. Rewinding the ANT and OSC coils were bad enough on the model 89 and 84's I've worked on!
Will tackle installing it tomorrow night after the daily work grind. Stay tuned...I hope I will be able to with this IF can!
Greg V.
West Bend, WI
Member WARCI.org
