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Step 5Put it all together
I used teflon tape to insulate the turned pin socket and capacitor, which had to go inside the barrel of the jack. A dab of petroleum jelly kept its bore from filling up as superglue was applied to hold it in position.
A HAM friend of mine measured about 5pf of capacitance for this probe, which is pretty good.
In use, a sharp probe is inserted into the turned pin socket. The ground lead is wire wrapped around the barrel of the jack. This is necessary if accurate measurements are to be made in a noisy environment.
I hope this will be of use to the HAMs among us.
A HAM friend of mine measured about 5pf of capacitance for this probe, which is pretty good.
In use, a sharp probe is inserted into the turned pin socket. The ground lead is wire wrapped around the barrel of the jack. This is necessary if accurate measurements are to be made in a noisy environment.
I hope this will be of use to the HAMs among us.
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