Which photo? And a ROM is a good way to hide secrets, chapeau!.
Peter
Am 11.05.2018 um 11:11 schrieb andy pugh:
On 11 May 2018 at 07:33, Peter Blodow <[email protected]> wrote:
Andy,
Zeiss uses the "switching" function as a major argument in advertising this
probe, so measuring the bare resistance wouldn't be satisfying. There must
be a feature you didn't find when destroying your probe.
There is nothing clever in the probe head, just the piezo and two resistors.
In the interface unit that the probe connects to (there is one in this
photo) there is a _lot_ of stuff including what looks like a big old
ROM chip.
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