On 5/17/11 7:01 AM, Jean-Louis Oneto wrote:
I realized that there was lot of way to avoid this [pulldown] problem, but as I said, it was a long time ago (around 1976...), I was young and inexperimented, and I just tried once on an almost broken 5 FF (~$1) wristwatch, then I decided that the software approach would be better for me. I used a fine-grained handheld sharpening stone very carefully and just a few light touchs were enough (um, rather too much!).
a bit of jeweler's rouge embedded on the end of a pencil eraser or wooden stick and a steady hand.
1000 grit lapping paper might be even better, because you wouldn't have to worry about the grit remaining on the quartz.
You've got a pretty big move.. one part in 365, right? It's not like moving a 10 MHz crystal up by 1000 Hz.
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