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questions about HP 802059 wall warts
05-08-2017, 06:41 PM (This post was last modified: 05-08-2017 06:45 PM by Dieter.)
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RE: questions about HP 802059 wall warts
(05-06-2017 04:34 PM)rprosperi Wrote:  [ Why AC? ]
As to why HP chose that, it's impossible to say for sure now, though it's likely folks that know about this stuff will chime-in with technical insights.

I am definitely not one of these folks, but I'd say that AC is the most versatile option: it can be used for devices that run on AC, pulsating DC or "pure" DC – the required conversions are trivial.

(05-06-2017 04:34 PM)rprosperi Wrote:  The key advantage I can see is it's a simple transformer electrical design, and these adapters have been extremely reliable as a result, I have many of them, use daily, and have never had one fail.

I have two European versions (82066A) for charging the HP41 battery pack. The first one from 1981 soon had a problem with a bad cable or plug making unreliable contact. Later I found another one (NIB) in the dump bin of a local electronics store. The price was very reasonable: 2,50 DEM, which at that time was not much more than 1 USD. $-)

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RE: questions about HP 802059 wall warts - Dieter - 05-08-2017 06:41 PM

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