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Correct volts out on HP-45 PSU
07-21-2023, 05:18 PM
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Pennine_Lad Offline
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Correct volts out on HP-45 PSU
Hi

Is anyone familiar with the HP-45 calculator PSU correct pin out voltages. Took a gamble and bought one declared not working with the HP PSU it came with. The calculator works fine on 3AA rechargeables.

Checking the HP PSU it came with there's 12V on outer pins and 0V on the ones marked with + and -. The seller used this PSU to declare not working. Are these correct, 12V seems high for a unit that runs on 3AAs.

If 12V is incorrect a bit surprised still working if 12V was delivered to it.

Thanks.

David

[Image: PSU.jpg]
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Correct volts out on HP-45 PSU - Pennine_Lad - 07-21-2023 05:18 PM



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