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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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