Electrical continuity and voltage testing device

Details Electrical continuity and voltage testing device Electrical continuity and voltage testing device

1975-12-30

1977-03-29

Mullins, James B.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 96, 324149, G01R 3102

Patent

active

040152014

ABSTRACT:
A circuit testing device includes a casing, two probes one of which projects from the casing, a voltage level testing circuit operatively connected with one probe and incorporating simple and advantageous circuitry including transistor amplifier means and indicator means, and an electrical continuity testing circuit connected between both the probes.

REFERENCES:
patent: 2819448 (1958-01-01), Neeper
patent: 3416074 (1968-12-01), Schoonover
patent: 3510766 (1970-05-01), Russell et al.
patent: 3525939 (1970-08-01), Cartmell
patent: 3555420 (1971-01-01), Schwartz
patent: 3673588 (1972-06-01), Riff
patent: 3829763 (1974-08-01), Morin
patent: 3831089 (1974-08-01), Pearce
patent: 3840808 (1974-10-01), Liebermann

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