Thanks for the replies. The note about the PR 100 was helpful.

Ken

"Asimov" wrote in message
...
"Ken_B" bravely wrote to "All" (18 Dec 04 15:40:59)
--- on the heady topic of "Mystery probe"

Ke From: "Ken_B" @

Ke I've acquired a couple of probes marked "PR 200" & "PhilipsECG" on one
Ke side of small box integrated with connector, 1/1-1/10 with adjustment
Ke hole on other side (calibration?). Three-position switch on probe
Ke marked 1 - 10 - G. I assume this is 1x/10x multiplier/ground selector.

Ke Google search no help. Can someone give me any info on these? Thanks.

PR 200 is likely 200MHz since I know the PR 100 is 100MHz.
It's the best I can offer...

A*s*i*m*o*v

.... I lurk quietly and carry a big OFF/ON switch.