What devices are used to detect these types of signals? I was thinking about trying to make one but wouldn't know where to start. Is it simply using a darlington transistor for the "probe"(or maybe an instrumentation op amp)?
Thanks, Jon
What devices are used to detect these types of signals? I was thinking about trying to make one but wouldn't know where to start. Is it simply using a darlington transistor for the "probe"(or maybe an instrumentation op amp)?
Thanks, Jon
Silicon Chip did an article last year on it:
There was also an older parallel port based one in EA magazine about the mid 90's I think.
Dave :)
Yea, but you don't get to see it!
Luhan
about
It's like a peep show, you gotta put your money in the slot to see the whole thing...
Dave :)
about
using a
amp)?
Actually, you can for a price. That's marketing for you.
-- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens. --Schiller
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