05-12-2020, 10:28 AM
Hello everyone. I have a strange problem and I need your help: RCA 66X2. AM/SW 6 tube radio. I have what sounds to be a bad case of SMD. All caps have been replaced, resistors and tubes checked and replaced as necessary. The strange thing is that when I test for noise at the IF cans with my signal tracer I get no noise at all. If i test at the 35Z5 and 35L6, I can hear it loud and clear. My question is, can a sound like SMD come from something other than an IF can, such as a tube?
https://www.radiomuseum.org/schemaviewer...sch~~1.pdf?
https://www.radiomuseum.org/schemaviewer...sch~~1.pdf?
Eric
The Villages, FL
Member: Philco Phorum, ARF, ARCI & Radiomuseum.org
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
