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"Ken Scharf" wrote in message
. .. I could put a germainium or low voltage drop si in series with the VPP to block the negative voltage all together. That would somewhat limit the vpp, which might be a problem. I don't know definitively what you need here. A lot of older programmers went through all sorts of hoops to be sure that value was above 12 volts. However, lots and lots of folks have success with around 9 or so. I haven't been able to find a spec, other than the maximum, but Microchip generally refers to this as "13 volts". ... ... |
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