Read?Write HP 67 card reader

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Read?Write HP 67 card reader

10-05-2024, 03:59 PM

Post: #9

AnnoyedOne Offline

Senior Member

Posts: 399
Joined: Aug 2024

RE: Read?Write HP 67 card reader

(10-05-2024 03:53 PM)Geoff Quickfall Wrote: These are now ~ 50 years old and are pretty reliable BUT, these two specifically will take a load from the switching on of the card reader motor when it is in the READ mode.

From Wikipedia tantalums can fail from

"Field crystallization"

https://en.wikipedia.org/wiki/Tantalum_c..._mechanism

New to me.

A1

HP-15C (2234A02xxx), HP-16C (2403A02xxx), HP-15C CE (9CJ323-03xxx), HP-20S (2844A16xxx), HP-12C+ (9CJ251)

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Messages In This Thread

Read?Write HP 67 card reader - Geoff Quickfall - 10-04-2024, 09:43 PM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 12:05 AM

RE: Read?Write HP 67 card reader - John Garza (3665) - 10-05-2024, 03:32 AM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 03:56 AM

RE: Read?Write HP 67 card reader - John Garza (3665) - 10-05-2024, 05:32 AM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 05:54 AM

RE: Read?Write HP 67 card reader - AnnoyedOne - 10-05-2024, 09:50 AM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 03:53 PM

RE: Read?Write HP 67 card reader - AnnoyedOne - 10-05-2024 03:59 PM

RE: Read?Write HP 67 card reader - AnnoyedOne - 10-05-2024, 04:26 PM

RE: Read?Write HP 67 card reader - AnnoyedOne - 10-05-2024, 06:39 PM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 04:03 PM

RE: Read?Write HP 67 card reader - Geoff Quickfall - 10-05-2024, 06:42 PM

RE: Read?Write HP 67 card reader - teenix - 10-05-2024, 09:29 PM

RE: Read?Write HP 67 card reader - AnnoyedOne - 10-06-2024, 11:33 AM

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