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My first HP41!
11-26-2015, 09:51 AM
Post: #7
RE: My first HP41!
(11-26-2015 09:02 AM)ElectroDuende Wrote:  (...) I have finally ended the work on this calculator!

Congratulations for the successful rebuild!

As a modest collector, I still do not have a single HP-41 in my possession.
I tried and failed a number of times to buy one specimen on eBay.
Asking prices are to high considering the usual condition sate - most of them have issues on the battery compartment and internal circuitry due to battery leaking.
I'm saving it for next year acquisitions.


(11-26-2015 09:02 AM)ElectroDuende Wrote:  There are still a couple of things that make it not to be "perfect":
- There is some dirt under the display protector. Apparently the only way to clean it is desoldering the LCD and, despite being quite a qualified solderer (I've melted several tin rolls in my life) I fell a little anxious about it.
- Key [3] is a little mushi. It doesn't have a clear "click" as the rest do, and key [2] makes if softer than the rest. I'd try the deox-it, but this unit has the control board held in place by a couple of nuts, and I've read that removing them will likely strip the outer thread of the posts, and is, obviously, something I'd like to avoid.

Well, same feeling here.
No matter how experienced one is, mistakes happen all the time.

I have destroyed a couple of HP machines as well in this process, but that's how we lean to do these things: next time you know what should NOT be done!

Jose Mesquita
RadioMuseum.org member

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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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