HP-65 more on the card reader
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02-03-2019, 05:16 PM
(This post was last modified: 02-03-2019 05:20 PM by wallyt.)
Post: #41
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RE: HP-65 more on the card reader
Yes, I would suspect the caps, too. Unless they check okay with a good quality ESR meter I would replace them with new ones, not just replacements from another 65. Also, at least in my 65, the motor speed resistor was really tricky. The original value varied by only 110 ohms from what I found to get the reader to work correctly.
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