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Rommudoh

Today my new arrived. The first is an adaptation of Stefan Wagner's Power Guard: oshwlab.com/wagiminator/c64-po
I changed some components to what I had available. Thanks @aislerhq for manufacturing them.
Only I messed up two small details. The second is backwards, so the error is practically the same as the power good LED. And I also put in the backwards. I'll try to mount it on its back and rotated tomorrow.

the empty PCBs for protecting my C64s
finished soldering all components. I didn't notice the errors, yet.
Feb 14, 2025, 06:54 PM·Public·Fedilab
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Rommudoh

I fixed the mistake with the and didn't even have to turn it on its back. I lost one in the attempt to bend the legs.
Now the power gets cut when it's over 5.53 Volts. Both LEDs turn off then, but fixing that would require cutting traces underneath the , which I don't want to unsolder again.
Time to attach a cable and use it for protecting my

closeup of the bodge. the MOSFET is rotated 180 degrees and the gate leg is attached to its pad using a green enameled copper wire
the power guard in action. both LEDs are turned on, meaning the power is below critical level. as soon as power is above 5.53 Volts, it is cut off and the LEDs are turned off.
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