Posts Tagged ‘Test Equipment’

Heathkit C3 Condenser Checker – Wrapup

Finally, I just wanted to demonstrate the operation of the C3 Condenser Checker.  I’m not much of a videographer, but here is my video demonstrating the device to check several good and bad capacitors for value and leakage. Enjoy!  

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Heathkit C3 Condenser Checker – Knob Repair

Almost finished… A final repair on the knobs of the Heathkit C3 Condenser Checker, and it will be ready for operation.

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Heathkit C3 Condenser Checker – 25 Volt Mod

As noted in my previous post, the 25 volt scale for the leakage test function of the Heathkit C3 Condenser Checker provided a voltage that was considerably higher than 25 volts.  It was closer to 50 volts.  This seems to be a design flaw, or a documentation flaw, as I don’t know which side of […]

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Tektronix 2465A Oscilloscope Repair – Part 13

Dynamic Centering, DC Balance and X-Y Phase Differential I got in a hurry and forgot to get photos of this procedure.  But all went as described in the manual. Dynamic_Centering.PDF

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Tektronix 2465A Oscilloscope Repair – Part 12

CAL07 – Readout Centering and Gain CAL07.PDF We are near the end of the poor man’s calibration of the 2465A Oscilloscope. CAL07 adjust the position of the Readout characters on the screen.  They are simply moved with two controls (R2918 and R2931) to place them just inside of the graticule area of the screen.

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