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Philco 46-480 Electronic Restoration
jrblasde
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Posts: 251
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Joined: Jan 2024
City: Tulsa State, Province, Country: Oklahoma
#128

03-12-2025, 09:27 PM
I forgot to make mention of it the other day, but last week I corrected another error on my schematic (applies to both Revs 0 and 1). I had thought, from looking at the Philco schematic, that pins 4 and 6 of the 7H7 used as the second IF amp were connected. I realized when comparing against my physical wiring notes that they are not. I also verified using the Rider's version of the schematic that they are not tied together. I'm sure that the original Philco schematic was correct, but this particular crossing was blurry and it looked to me to be a node. Anyway, I've attached the corrected schematics.

Before Correction:
   

After Correction:
   


Attached Files
.pdf Philco 46-480 Schematic Rev 0.pdf Size: 361.94 KB  Downloads: 8
.pdf Philco 46-480 Schematic Rev 1.pdf Size: 393.53 KB  Downloads: 7
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Messages In This Thread
462ron - by 462ron - 02-25-2025, 08:24 AM
RE: Philco 46-480 Electronic Restoration - by jrblasde - 03-12-2025, 09:27 PM



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