Got a couple of interesting HP-71B items today (2CDCC, 2CCCC)

[Mike]

First, I got a Topcon Survey Module with overlay. This was an unexpected bonus in the 71. The TopCon was delivered on a 64K EPROM with the Topcon Instrument label on the EPROM. Not that it's anything special but I wasn't expecting it.

Then, I was checking version in some new 71B and found a half way decent 2CCCC version 71B. I've got a couple of 2CDCC versions already but this is the first time I've seen the 2CCCC version.

Lucky day today!

Edited: 24 May 2006, 11:28 p.m.

[K]

Quote:

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I've got a couple of 2CDCC versions ...

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So, would this be one of the HP-71B's with 2CDCC ROM version at a BIN of US$500 or Reserve > US$100?

Mint HP 71B Computer Calculator 2CDCC Manuals and Case

Just to clarify (from my own recollection of facts): The original ROM versions 1AAAA and 1BBBB were released in 1983, with a fair number of bugs found. Revisions 2CCCC and 2CDCC were released in 1985, with the 2CDCC version issued very shortly after the 2CCCC version, correcting only one or several bugs.

[Eric Smith]

AFAIK the 1AAAA ROM was never officially released.

[Mike]

Although, I know someone who has one. And in fact, he says he as a 0AAAA also.

[Eric Smith]

Could well be. I didn't say that they didn't exist, only that they weren't "released".

[Mike]

Quote:

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So, would this be one of the HP-71B's with 2CDCC ROM version at a BIN of US$500 or Reserve > US$100?

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As a matter of fact.