[Heathkit] Calibrating VF-1?

[Bob Macklin]

I would say that if it JUMPS you must have a something wrong with  the main
tuning capacitor. It's the only thing that moves when tuning.

The tuning procedure in the manual does work if there is nothing wrong with
the VFO.

Bob Macklin
K5MYJ
Seattle, Wa,
"Real Radios Glow in the Dark"
----- Original Message ----- 
From: "Randy Perkins" <w5kcm at sbcglobal.net>
To: <heathkit at mailman.qth.net>
Sent: Sunday, August 10, 2008 3:23 PM
Subject: [Heathkit] Calibrating VF-1?


> I am having a lot of trouble getting my VF-1 calibrated. Anyone know of
> a simple procedure. I have followed the procedure in the book with
> little success. I can get the 80 meter calibrated only at the low end
> and it is always about 20 Khz high. When I tune up the band it will jump
> about 100 Khz. I notice that I have to adjust the core all the way
> inside the 160/80 meter coil to get even close to calibration. I am
> getting about the same results on 40 meters. Also, I notice that I only
> have about half the drive from the VF-1 as I do the crystal on the AT-1.
> Any suggestions would be appreciated. 73, Randy, W5KCM
>