05-16-2013, 03:43 PM
You made sure that C403 tested continuous, right? I'll assume you did, and it's okay.
I recently tried going through the whole FM alignment procedure in the Philco manual (with some proper supervision), and was fairly successful.
Ground the plate of the FM1000, make the loading network as described in the instructions, and then, after hooking your generator up to L501B (middle coil under the tuning cap) & setting it to 9.1 MHz, clip the loading network to the top padder of C403b and ground, and then adjust the trimmer fro C403c. You're neutralizing the adjacent coil with that loading network & that will enable you to zero right in on the 9.1 Mhz modulated tone.
Do that across all the IF cans and see what you get.
I recently tried going through the whole FM alignment procedure in the Philco manual (with some proper supervision), and was fairly successful.
Ground the plate of the FM1000, make the loading network as described in the instructions, and then, after hooking your generator up to L501B (middle coil under the tuning cap) & setting it to 9.1 MHz, clip the loading network to the top padder of C403b and ground, and then adjust the trimmer fro C403c. You're neutralizing the adjacent coil with that loading network & that will enable you to zero right in on the 9.1 Mhz modulated tone.
Do that across all the IF cans and see what you get.
