[Test-Equipment] WTD: Help with old scope problem

k4pf at juno.com k4pf at juno.com
Mon Oct 11 14:14:24 EDT 2010


Hi, Joe

If you could repeat those Tek 310A voltage measuremnts with the given
calibrator and sensitivity settings, it would be a help
(sorry for the wrong steer).

Can you check the Simpson a.c. calibration on 250VAC scale by plugging
it into a wall outlet, and check its lower ac volt scales 
by looking across a 6.3v heater line at the LV power supply.
Then please repeat the test using the "output" connection 
of the Simpson.
(I just want to make sure the Simpson can be relied on, before we
depend on it for troubleshooting the Tek).

73,
Ed

"Joseph Orgnero" <josepho at shaw.ca> wrote
>I took the measurements before reading this last message, 
so I don't know if they are correct.
- 1 pin 1 of V10, I read 33 VAC but I have to set the calibrator to       100 to reach tht value
- 2 pin 7 of V40, same as above
- 3 pin 1 of V40, I read 8 VAC
If I set the calibrator to 1 V, there is barely a flick on the meter.
Does the above helps?

Re. 260, there appears to be problem here, too. I don't get any reading on 
the 300 VDC test point.
thank you again for taking your time on this.
Joe




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