N_Cook wrote:
I decided to break into my 1000V DC, 10 Gigohm insulation tester, today. No
particular reason , just curious, as still in perfect working order.
Had to break a seal to get inside, never needed repair by me or previous
owners, just my adapting to 9V nicad use rather than pair of unobtainable
4.5V batteries.
Made in Austria , Norma Isolationmesser 667 001
Date inside is 15 December 1965, i thought it would be 1970s
Just disintegrated foam inside, compenentry like Siemens AD130, AC153 and
OC75 all fine. Whenever I check calibration with a 1G glass cased resistor
it is the same cal setting, no switch problems or anything else.


Transistors? That's almost new equipment. I'll raise you a Boonton
Megacycle meter. Tubes, cloth-insulated wire and all that.

Then an electric drill from some time in the 20's, still works just fine
and being used.

--
Regards, Joerg

http://www.analogconsultants.com/

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