开云体育

  1. Yaesuft301d
  2. Topics

VFO TC801 temp compensating trimmer.location

 

Hi all
I have the top cover off on the old FT-301 and thought I would adjust TC801 for less drift.
Is this it? Anybody know?
Thanks
Fred
N1DEC
 

Hi Fred
The company ELcon has a great VFO stabilizer, especially for the FT-301.
Take a look at the assembly and operating manual here??
You can order here??

73 de Roland, HB9GAA
 

Well. After some discover I did find the real TC801.
?It is accessible after one pulls off the little can below the VFO that contains some mysterious circuity
Then there is a little hole that you can get a tiny plastic? screwdriver in to
adjust it.

 

Absolute must while your in there is to bond everything together with solder and a bridge to the vari cap chamber. If you still have that stupid plastic piece in there and it isn't floating around somewhere take it out and throw it away. They did that as a band aid to try to keep the VFO stable. Put a light sig in it and tap around, yep that's it. If it's a "D" model it is easy to make the VFO turn in the right direction. Covered int he Elcon library. Add an Elcon stabilizer to the back of the VFO for major stability. With the Elcon 33 I think it is I run them on 6, 2 and 220 mhz driving Xverters.?
Dave

1 - 4 of 4