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Old May 5th 09, 08:04 PM posted to rec.radio.amateur.boatanchors
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Default Heathkit HW-9 Dial Error

In article ,
"COLIN LAMB" wrote:

One common alignment technique is to align somewhat inside of each dial end.
That will often give you a better overall alignment.


Colin-

I hadn't considered exactly that. I did try aligning at the 50 and 200
KHz points, but the trimmer capacitor got too loose. I might try
alignment just outside the dial ends, perhaps aligning zero for 10 KHz
and 250 for 240 KHz.

My problem of the oscillator stopping may have been a case of
overdriving the counter. Trying a different counter with an attenuator,
seems to have cleared up that problem. It is a good thing I tried that
before changing any parts.

Now, with the capacitor plate straightened and VFO aligned at zero and
250, the middle of the dial is off about 9 KHz. This may be a KHz
better than before. Maybe the capacitor plate was bent in the wrong
direction? I think I'll just leave well enough alone!

73, Fred K4DII
 
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