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HP-41CX Missing Clock
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10-26-2020, 10:06 PM
Post: #4
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RE: HP-41CX Missing Clock
Got it going! The issue was a broken lead on the HP factory installed crystal at Y2. I replaced both R4 and Y2, and CLOCK fired right up. :-) The scarce timer IC 1LF6-0001 is just fine. Now lets see what the drift on that new crystal is like.
Whew! That was a fun little project, and now I have nice little CX to add to my collection. R/ -Pat (KG5YPQ) |
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| Messages In This Thread |
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HP-41CX Missing Clock - rocket.scientist - 10-24-2020, 10:25 PM
RE: HP-41CX Missing Clock - Monte Dalrymple - 10-25-2020, 05:23 AM
RE: HP-41CX Missing Clock - rocket.scientist - 10-25-2020, 06:37 PM
RE: HP-41CX Missing Clock - rocket.scientist - 10-26-2020 10:06 PM
RE: HP-41CX Missing Clock - cruff - 10-26-2020, 10:54 PM
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