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vjp2.at@at.BioStrategist.dot.dot.com: Feb 24 02:52PM Looking to identify the 4v battery used to backup settings on 1980 HP2621A CRT video display terminal. I can't find the battery type online. Seems all the manuals are truncated at chapter 5. It is discontinued and I just want the specs. seems 4.2v Hg or 3.8v Li.     -- Vasos Panagiotopoulos panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}---

steve1001908@outlook.com: Feb 24 03:15PM On Fri, 24 Feb 2023 14:52:31 -0000 (UTC), >CRT video display terminal. I can't find the battery type online. Seems all >the manuals are truncated at chapter 5. It is discontinued and I just want >the specs. seems 4.2v Hg or 3.8v Li.   Hg is bad for marketing. It was probably discontinued when everybody found out that mercury (Hg) was a dangerous poison.

vjp2.at@at.BioStrategist.dot.dot.com: Feb 24 02:08PM I have a 1980 device (HP2621a terminal) with a now discontinued battery which retained settings while off. I am wondering if there isn't ome sort of continuously recharging (when on) battery that could replace this?   Also, for fiber optic telephonebackup as, thanks to Murphy's Law, the batteries are never functional when there is an actual power outage.       -- Vasos Panagiotopoulos panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}---

Dan Purgert <dan@djph.net>: Feb 24 02:51PM -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512   > battery which retained settings while off. I am wondering if there > isn't ome sort of continuously recharging (when on) battery that could > replace this?   I'd hazard it's not an impossible task to add that in place of the original primary cell battery; space might be a concern though.     > Also, for fiber optic telephonebackup as, thanks to Murphy's Law, the > batteries are never functional when there is an actual power outage.   Test the UPS on the same cycle as you test your smoke detectors. Replace batteries as needed.     -----BEGIN PGP SIGNATURE-----   iQIzBAEBCgAdFiEE3asj+xn6fYUcweBnbWVw5UznKGAFAmP4zyQACgkQbWVw5Uzn KGD21RAAjOHU1/3n9W+RBNzxNg9ftbHBAQxffHDaSERCVZUVr152HuPyWi1fhBNf ngTvaQsV4t4I8zlLUo2nz2ZGUGmWTjK1gCo3jN+s4UiXAwb85ipeRn7s/KNt6Qjk dSyKoDMGwzGrykbO/du3aXd4sly8tr9zhZP77RUqFm21tepoAerorqI+5pnoFkBi XJ+1lg4Z2m9LRgS+/O4zbqx640bdWo0yx6QMeCoJJdCbc8qtbYM67S2XVEAzi9qQ tQLi29AqW5mvTHxwMdg82dVUT/qMuHQde7Yn7v1/prcRAmNvrAWmhEIUWBkp42uK LaRZ7avixRip6OHnuP9U6E7VctCHZ9ADh7op/RkuwjxS4PTNmXxi3K+8Ok5Afz2D 64JGHYVjAQuhOhKqSpvDM05lllD9Ibcbwu8kEwAxXlMnPMP1HsRf70hYAzWzxZa5 V0FNiHfNho+I1V0bD650SMmL5zxx3cA8gb6OUX8VNYcEgg9MDYdwwZt+s+dy1pya 3GZ5OztVeGkHdirSaW+r4PR8ZEVGmS5E7hPmgmyc7xsJD8+g0Ce1kac3VTZQ3+Ph S1noOrwUEbd0BLXx7bu1yT/WabUcF4bjacE2HuCVLy4Zwn3XCuogtcb+YOE0J57e I67EINVbIVKnCLsRzhLwN6SakUTKKryQGXLdHyJIO7UMdHwzFF8= =nzU9 -----END PGP SIGNATURE-----   -- |_|O|_| |_|_|O| Github: https://github.com/dpurgert |O|O|O| PGP: DDAB 23FB 19FA 7D85 1CC1 E067 6D65 70E5 4CE7 2860

vjp2.at@at.BioStrategist.dot.dot.com: Feb 24 02:12PM I wonder if I get an rs232-usb connector, and port the .SYS terminal driver (I recoded in assembler but in 1985), I should be able to get a razpie to run. Question how I would network if it is MSDOS. 1985-95 my HP2621a had an 80186 Ampro 2210 MSDOS-generic computer on it with 5.25" disks and 10MB hard dirve. (Should still work.) Worked quite well, still own it. The glue holding the monitor shield has corrupted, looking like mildew, but I am told all I have to do is scrape it off. Just a stupid nostalgia ego thing.       -- Vasos Panagiotopoulos panix.com/~vjp2/vasos.htm ---{Nothing herein constitutes advice. Everything fully disclaimed.}---

liz@poppyrecords.invalid.invalid (Liz Tuddenham): Feb 24 10:52AM > data it has to find the information on calibrating the meter that the manual > contains which you said you needed.   > Hope this helps.   Thank you for that reference, it seems to apply to one of the meters I have but not the other. There must have been two versions, one with manual adjustment by pre-set potentiometers and the other with auto-calibration backed up by a 'coin cell' battery.     -- ~ Liz Tuddenham ~ (Remove the ".invalid"s and add ".co.uk" to reply) www.poppyrecords.co.uk

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