[Test-Equipment] Parts specs

[J. Forster]

If it's an electrolytic, you may just need more reforming time. (applying normal
operating voltage)  I've had to reform old caps for a day or two on occasion.

-John

Glenn Little WB4UIV wrote:

> Where can I find specs on a Sprague 672D series capacitor?
> This is to replace suspect capacitors in a Tektronix scope.
> I would like to find a suitable substitute.
> I know that there are people selling the exact replacement part, however, I
> suspect that their parts are just as old as the ones that I suspect.
>
> Any help appreciated.
> The ESR on this part appears ok, the capacitance appears a little high, the
> leakage is high and goes up over time rather than down. If I overvoltage
> the capacitor by 50% the leakage appears more normal after I return the
> capacitor to normal working voltage for testing.
>
> Thanks
> 73
> Glenn
> WB4UIV