[Heathkit] DX-100 VFO

[Glen Zook]

Lots of possibilities including bad 6AU6, loss of B+ to 6AU6, bad 6.3 VAC connection, dirty switch contacts, etc.


One thing that is often overlooked is the VFO band switch which is located on the chassis and connected to the main band switch by a "cam" arrangement.  If the actuator gets loose, or out of alignment, it is certainly possible for the switch contacts to be between making contact with the proper connections which will also "kill" the VFO.

 Glen, K9STH 
Website: http://k9sth.net

      From: Thomas Scherer <w2kbw1520 at gmail.com>
 To: heathkit at mailman.qth.net 
 Sent: Thursday, May 24, 2018 9:01 AM
 Subject: [Heathkit] DX-100 VFO
   
In VFO position there is no drive on all bands.
When crystals are selected, works fine.
Any ideas what the problem(s) may be?
  Thanks