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Oh and just as an infuriating aside...the frequency counting issues previously were NOT the 8600. The switch on the 8601 that changes the frequency scale from 11 to 110 was wonky. I opened that unit and hit the inside of the switch with some contact cleaner and it seems to be stable. I figured this out when the counter was reading 0.000 with the 8601 set to 21.25MHz and for the hell of it I flipped the switch to the 11 scale and got a stable reading of 2.125 on the 8600. I went through all of the frequencies on that scale and it was rock solid. Now the 110 scale seems to be working after the cleaning but who knows what's next with these old components?????
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