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My first HP41!
04-13-2015, 10:32 PM (This post was last modified: 04-13-2015 10:32 PM by ElectroDuende.)
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My first HP41!
Some days ago I bid for a 41C. It was (I think) a bargain (about 35 euro) because it was not working and provided "as is". This means that the battery flex circuit is completely corroded and all covers are missing. Anyway, I took the risk... and nobody else chose to, so I won it.

Today it arrived and I could check it "deeply". I was surprised with its size; I had never had one of them in my hands, and it is smaller than I expected (too much time using a 48G). The LCD characters are also a lot smallar than I expected!

It is quite an early model (serial #2015AXXXXX) with tall keys. The case is in very good state; posts are perfect, no marks in the LCD glass, no notches in the corners... after opening it I confirmed that the flex circuit is a total loss, but fortunately it can be replaced thanks to D. Díaz. Also fortunately the inner board is clean and not affected by corrosion.

I tested it powering from the "spring loaded balls conector" and 4 AAA batteries. It powered with an expected "memory lost" warning, but everything seems to work flawlessly, from the keys to the LCD and speaker.

I was also surprised by the speed of the unit... used to a 30B at the office and 15C LE at home... it seems really slow! (No, no budget for a CL conversion... yet).

For the moment I'll just order the replacement ribbon circuit and will try to print the covers in a 3D printer using the files available around the forum.

I'll post my advances!
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Messages In This Thread
My first HP41! - ElectroDuende - 04-13-2015 10:32 PM
RE: My first HP41! - bshoring - 04-13-2015, 11:22 PM
RE: My first HP41! - Frido Bohn - 04-14-2015, 09:17 AM
RE: My first HP41! - vk6ti - 04-14-2015, 12:44 AM
RE: My first HP41! - Garth Wilson - 04-14-2015, 04:09 AM
RE: My first HP41! - ElectroDuende - 11-26-2015, 09:02 AM
RE: My first HP41! - jebem - 11-26-2015, 09:51 AM
RE: My first HP41! - ElectroDuende - 11-26-2015, 10:27 AM
RE: My first HP41! - jebem - 11-30-2015, 11:34 AM
RE: My first HP41! - ElectroDuende - 11-30-2015, 11:56 AM
RE: My first HP41! - jebem - 12-01-2015, 10:16 AM
RE: My first HP41! - ElectroDuende - 12-01-2015, 10:57 AM
RE: My first HP41! - emece67 - 12-01-2015, 02:27 PM
RE: My first HP41! - aurelio - 11-30-2015, 02:48 PM
RE: My first HP41! - jebem - 12-01-2015, 12:22 PM
RE: My first HP41! - aurelio - 12-01-2015, 10:07 PM
RE: My first HP41! - rprosperi - 11-30-2015, 03:16 PM
RE: My first HP41! - aurelio - 11-26-2015, 06:46 PM
RE: My first HP41! - Katie Wasserman - 11-26-2015, 07:42 PM
RE: My first HP41! - ElectroDuende - 11-27-2015, 09:31 AM
RE: My first HP41! - Massimo Gnerucci - 11-27-2015, 10:52 AM
RE: My first HP41! - emece67 - 11-26-2015, 09:57 PM
RE: My first HP41! - TASP - 11-30-2015, 04:47 PM
RE: My first HP41! - d b - 11-30-2015, 05:19 PM
RE: My first HP41! - aurelio - 12-01-2015, 10:32 AM
RE: My first HP41! - TASP - 11-30-2015, 06:16 PM
RE: My first HP41! - Thomas Klemm - 11-30-2015, 09:20 PM
RE: My first HP41! - TASP - 12-01-2015, 12:39 AM
RE: My first HP41! - jebem - 12-01-2015, 08:43 AM
RE: My first HP41! - Massimo Gnerucci - 12-01-2015, 09:21 AM



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