ciao a tutti,
which external power supply can be used safely with an HP71b ?
my guess would be the same as for the HP41 family
but I will appreciate your help
take care, Alberto
HP71b - which power supply
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08-17-2010, 12:27 PM
ciao a tutti,
which external power supply can be used safely with an HP71b ?
08-17-2010, 12:37 PM
Ciao Alberto, the one that fits into the 82161A will do, in Germany it's the 82066B. Regards Raymond
08-17-2010, 12:47 PM
The 82059D works fine with my 71b.
08-17-2010, 01:47 PM
That's the one I use on mine. The output is rated 8VAC/3VA MAX but on I measuring it I found 13.4V (12.6V when the 71B is turned on, but not running). This should be normal since the HP-71B represents no load to the power supply. However the first time I used it one tantalum capacitor blew up inside the 71B (which has not been replaced yet). I don't remember what I did wrong, I only remember I had removed the batteries, but this would not damage the computer, according to the manual. The recommendations in the manual might be useful:
08-17-2010, 05:40 PM
The 82066 is fine in Europe 220V The 82059 is suitable to the 110V mains. Ciao Etienne
08-18-2010, 10:36 AM
Not only for the Power Supply, but also to replace a Capacitor, RamLab
08-18-2010, 12:32 PM
Thanks everybody, very helpful, as always, grazie !! |
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