11-03-2014, 05:08 PM
I am working on a model 58 (I think - like the 57/58 schematic in Riders). It is all original - has not been touched. The filter capacitor is a 30-2013 A. It has three lugs in a triangle: black paint at 12:00, Green at 8:00, and Red at 4:00. The problem is that the all original wiring does NOT match the schematics in Riders or Philcoradio.com. In my radio the Red marked lug goes to the rectifier (filter input), and the Blue (or Green) lug to B+ (filter output). That is the opposite of the Change documentation for Capacitor 30. I believe this has been discussed before, but I was unable to find an answer.
Should the filter input capacitor be 8mfd or 4mfd? The schematic says 4mfd (blue), but in my radio it is 8mfd (red).
Should the filter input capacitor be 8mfd or 4mfd? The schematic says 4mfd (blue), but in my radio it is 8mfd (red).