Woodstock power supply
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01-06-2017, 05:56 PM
Post: #4
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RE: Woodstock power supply
I would not discard your power transformer, maybe it can be used in a power supply of 3Vdc:
Depending on the current consumption, a small heatsink attached to LM317T is enough. If your soldering skills are good, an assembly without a PCB can be possible and all components put inside the charger case. Try and test the power supply circuit in a breadboard, before packing them inside the charger case. My calcs: HP12C, HP15C, HP17BII+, HP20S, HP20B, HP32SII, HP34C, HP35S, HP42S, HP48GX. |
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