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+--- Thread: HP 19C Charger (/thread-17103.html)
HP 19C Charger - DEJR8ISGREAT - 06-14-2021 02:00 AM
I bought a 19C on EBAY without a charger, I thought I saw in the Museum that the charger could be a 82059A or B, so I purchased a 82059B, but on closer inspection that says for 7 watts, would it still be safe to use? Or would it fry the 19C? I can't find a 82059A...
RE: HP 19C Charger - Karl-Ludwig Butte - 06-14-2021 07:16 AM
Hello DEJR8ISGREAT,
the Owner's Handbook for the HP-19C/29C from September 1977 lists on page 180 the HP-82059A as AC adapter/recharger for the 19C. For the 29C the HP-82026A is listed as AC adapter/recharger. Unfortunately, no other technical data is listed except for the input voltage:
- HP-82059A: 90-127Vac, 50-60Hz
- HP-82026A: 90-127Vac, 50-60Hz or 200-250 Vac, 50-60 Hz
So maybe the only difference between the two is the input voltage. If you're living in Europe and your power station provides 200-250 Vac you should avoid the 82059A.
Best rgards
Karl
RE: HP 19C Charger - rprosperi - 06-14-2021 10:57 AM
The 82059B adapter is correct for a 19C and can safely be used, assuming the battery pack is installed and in good condition and working properly. While I don't believe the 19C suffers from the same poor power supply design as normal Woodstock machines, it's always best to ensure proper working conditions with vintage equipment.
RE: HP 19C Charger - AndiGer - 06-14-2021 03:28 PM
An always very good reference is Kees's page:
https://www.keesvandersanden.nl/calculators/chargers.php
BTW: My HP82066B (Europe) also has 3VA, 8 VDC. (But I don't own an HP-19C or HP-10)
RE: HP 19C Charger - DEJR8ISGREAT - 06-14-2021 09:57 PM
Thank you for your posts, one more question, it goes into the calculator both ways, does that matter, I thought one side is positive and one negative. The only difference I see is a very small slightly raised rectangle on the plug that connects to the port, like I say it fits both ways. Yes I did get a new battery, amazing what a 3D printer makes.
RE: HP 19C Charger - rprosperi - 06-15-2021 02:52 AM
(06-14-2021 03:28 PM)AndiGer Wrote: An always very good reference is Kees's page:
https://www.keesvandersanden.nl/calculators/chargers.php
BTW: My HP82066B (Europe) also has 3VA, 8 VDC. (But I don't own an HP-19C or HP-10)
Pretty sure that should be 8 VAC, not DC. At least the 82059A/B/D adapters are 8 VAC.
There is no PLUS or MINUS, since it's an AC power supply. It can be installed either way.
RE: HP 19C Charger - AndiGer - 06-15-2021 04:08 AM
Of course, it's 8 VAC - only a transformer