02-11-2012, 08:45 PM
DeShawn
I just checked Nostalgia Air to confirm that their schematic is the same as the original Philco factory schematic...it is.
From the 1950 Philco Home Radio Yearbook:
As for C9. It is the AVC filter, and the set's AVC will not work correctly without this capacitor. Add it in by all means. I do not know why it is not shown in the parts diagrams. Philco's draftsman may have just forgotten to draw it in. It is known to have happened before, in other Philco chassis drawings. This service information, after all, was compiled by imperfect human beings and now we, equally imperfect, are attempting to make sense of the info.
I just checked Nostalgia Air to confirm that their schematic is the same as the original Philco factory schematic...it is.
From the 1950 Philco Home Radio Yearbook:
Quote:PRODUCTION CHANGESSo that answers the 50L6/50C5 question.
Code 122, Run 1
The 50L6GT tube was replaced by a 50C5, with the necessary wiring changes.
As for C9. It is the AVC filter, and the set's AVC will not work correctly without this capacitor. Add it in by all means. I do not know why it is not shown in the parts diagrams. Philco's draftsman may have just forgotten to draw it in. It is known to have happened before, in other Philco chassis drawings. This service information, after all, was compiled by imperfect human beings and now we, equally imperfect, are attempting to make sense of the info.
--
Ron Ramirez
Ferdinand IN
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