Philco 46-480 Electronic Restoration
Posts: 287
Threads: 16
Joined: Jan 2024
City: Tulsa
State, Province, Country: Oklahoma
Got my replacement signal generator in the mail today! I was able to finish alignment of the IF section. I’ve got some trouble in the RF section though—I can’t receive AM, shortwave, or FM RF signals. The alignment procedures for the RF section don’t seem to be working.
Either I have a bad 7F8 converter tube or I have a miswire in the RF chassis. I will first assume a miswire, so I will comb back through to make sure everything matches the schematic. If it does, I’ll replace the tube.
I can feed an AM signal at 455kHz to a loop antenna sitting just beside the loop in the cabinet, and the radio picks it up and passes it through to be demodulated. But I can’t do the same for a signal in the AM bandwidth.
Joseph
Philco 46-480
Philco 49-906
Messages In This Thread
RE: Philco 46-480 Electronic Restoration - by jrblasde - 04-13-2025, 09:58 PM
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