[Radioroslyn]

There's more than one way to skin a cat. Another way we can test the audio part of your Philco is to inject an audio signal into the audio stages. What you will need an audio source like a VCR, DVD player, or cassette player and a cable as shown in the picture. The cap value is not critical any thing from 500pf to .1mfd is fine should that least 400v rating. Solder the cap to the tip and a wire to outside (shell). The other end will plug into the source.
Terry