On 11/17/2020 7:23 PM, Terry Raymond wrote: > Jim Im referring to using a logic probe, but maybe I did mention using > a meter. :) You mentioned voltage meter in your original note. Neitehr OHMS nor VOLTS will do much good on most TTL logic. > > I just dont know what I would need to do to get power *to* the logic > probe. Well, if it will take voltage up to 9V, just buy a small 9V battery clip and use that. But, if you know the voltage on the 64 is at least 5V, just use it. The logic problem no doubt filters the power coming in, so ripple or other issues with power should not be an issue. > all I can figure is to use a PC power source and use the 5VDC line, > and use any of the ground wires. > Ray Carlsen said it wouldnt be good to use the power right off of the > motherboard, why though was one of my many questions. Why? because it's there and why complicate things. JimReceived on 2020-11-18 03:01:21
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