I am very pleased to report that I successfully performed my very first cataract extraction on an HP2645A. Before surgery: For the specimen jar: All achieved with a moderate-length stiff knife and a l

Chris; I’m also interested if there is a desire to avoid overseas shipping. I’m located in the US.

Thank you for the references Roland. I’ve tried searching for some examples – photos, documentation – online (e.g., hpmuseum) since attachments aren’t supported here. No luck so far :-<.

What does a “genuine” HP rack shelf look like? Curious …

Achim: Perhaps https://www.amazon.com/Gearmo-Serial-Windows-Certified-Drivers/dp/B004ETDC8K

Chris: See new item #184689569507 on eBay. 12531-80025 is the Teleprinter (HS) Terminal Interface that (IMO) you will want. The price is more-or-less reasonable, IMO. It looks to be in fair condition;

Chris; It belatedly occurs to me that the original memory configuration was probably a full 32K but someone took the core stacks as trophies, tossed out the OTT connectors/cables, and left the remaini

Thanks for sharing those Rik. Can you explain what’s going on in wp_20131215_001_11666930425_o.jpg, wp_20131215_002_11666924745_o.jpg, and wp_20131215_003_11667172523_o.jpg? That seems to be an I/O PC

Agree with Stephen. Note that you’ll need to generate some non-“standard” voltages. HP used CTuL logic devices in numerous places – not TTL. The voltage requirements are +4.5 VDC and -2.0 VDC; not the

Chris; Here’s what I read in your list, reordered and annotated: HP 02100-60014 B-1144-22 Slot A1 Timing and Control HP 02100-80002 C-1044-22 Slot A2 ROM Control (presume actually 60002) HP 02100-6000

What is the title and PN of the “system manual” Chris? Go to http://www.hpmuseum.net/search.php, search for “2100”, and check what you have in-hand against what has already been scanned & published th

Achim; The documentation (actually for the 1310B) seems to indicate that this was a standard configuration. See the bottom of Figure 1-2, Table 1-3 Option 001, and then in Section 1-20 the “Rack mount

Coming up on eBay today: https://www.ebay.com/itm/HP-1310A-Display-19-x24-for-Mainframe-Racks/353381630171 Desk-top mounting described at: http://www.hpmuseum.net/display_item.php?hw=756 And thanks to

The HP 91200 appears to be 256x256 pixel resolution PAL or 256x240 pixel resolution NTSC. Does anyone here actually have one in operation? If so, what are they doing with it, and how :->?

Looks like a nice desoldering job there on those switches :->!

For the control store it’s the 12205-60002 Frontplane. The 12205A Control Store is pretty uncommon; the frontplane equally so (probably more so as folks seem to just throw those away and keep the boar

Thanks you Roland. Now if I could just find the pair of frontplanes that I need to get my A900 card-set “activated” (memory and control store). Stephen Hanselman had indicated earlier this year that h

Something like https://www.ebay.com/itm/Black-Box-CL410-Current-Loop-Interface-Module-powered-EIA-RS-232-20mA-101-4Q-Nos/111886999189 should do the job, but the BIN price is, in my opinion, much too h

Thank you David. And thank you for continued support of that site. It’s simply marvelous :->.

Thank you. Enjoy your week :->.