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HP45 power switch lubrication without opening calculator?
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HP45 power switch lubrication without opening calculator?
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HP45 power switch lubrication without opening calculator?
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10-04-2020, 03:57 PM
Post: #4
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RE: HP45 power switch lubrication without opening calculator?
IIRC I used DeOxit on my HP-35 switch as a two-fer (lube, attempt at contact cleaning) with no ill-effect, some smoothing of the action. Small amount. No expert, and may be wrong. Just suggesting.
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