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Loud buzz in National NC60
pbunn
Junior Member
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Posts: 8
Threads: 3
Joined: Jan 2024
City: Spartanburg State, Province, Country: SC
#1

01-14-2024, 02:34 PM
I am reworking a National NC 60 that had been revenged in the power supply but otherwise in nice shape. I have redone the power supply and recapped the paper caps . It works some what but has a loud background buzz. It sounds like bad interference, but my ham transceiver with the same antenna does not hear it. It is worse on the AM band.

I have not cleaned the band switch or the tube sockets. Tubes are all NOS 


Any ideas?

Thanks in advance
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Messages In This Thread
Loud buzz in National NC60 - by pbunn - 01-14-2024, 02:34 PM
RE: Loud buzz in National NC60 - by Radioroslyn - 01-14-2024, 06:24 PM
RE: Loud buzz in National NC60 - by David - 01-14-2024, 06:50 PM
RE: Loud buzz in National NC60 - by pbunn - 01-15-2024, 08:57 PM
RE: Loud buzz in National NC60 - by Radioroslyn - 01-15-2024, 11:27 PM
RE: Loud buzz in National NC60 - by pbunn - 01-17-2024, 10:42 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)