The AM Forum
October 08, 2024, 01:35:01 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Notes on Restoring a National NC-300  (Read 7638 times)
0 Members and 1 Guest are viewing this topic.
Steve - K4HX
Guest
« on: December 15, 2011, 08:01:37 PM »

Thanks to Ken, K6FC for sharing.

http://www.amwindow.org/tech/htm/nc300resto.htm

Enjoy!
Logged
Jim, W5JO
Member

Offline Offline

Posts: 2507


« Reply #1 on: December 15, 2011, 10:19:29 PM »

He doesn't mention L6.  If you have one of these receivers and L6 hasn't been converted to a crystal oscillator, then I suggest you do.  That eliminates a problem that plagued many of these receivers over time contributing to frequency calibration.  Suspect cause was humidity causing the coil form to change inductance values, and the setting of that core if very critical.
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.044 seconds with 18 queries.