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Michael A. Terrell Michael A. Terrell is offline
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Default Buying from Scrap yards?


Gerald Miller wrote:

Thanks much, the lead that was in the DC position seems to have some
odd properties, plus the ground lead insulation is totally petrified,
no AC/Ohms lead but the connector is still there. Not a bad deal for
$3.00, maybe not as good as the Fluke 77 at that price, but still fun
to play with.



If you work with any high impedance RF circuits it is better than the
Fluke. That 1 Mohm resistor at the tip of the probe reduces the stray
capacitance, and lets you read the voltage without detuning the circuit.
The local oscillator in a radio will usually stop running when you try
to use a DVM. That changes the bias voltages and prevents any useful
readings.


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