Vehicle antenna tester

Claim 1

A vehicle antenna tester for checking the continuity of both the conductor and the shielding conductor of an antenna lead wire thereof and for checking the insulation between them and for checking the electrical grounding of them to said vehicle comprising; (a) three clamps, the first of said three clamps for coupling to said conductor, the second of said three clamps for coupling to said shielding conductor, the third of said three clamps for connection to the chassis of said vehicle, (b) a pair of lamps, one terminal of one of said lamps coupled to said first clamp, one terminal of the other of said lamps coupled to said second clamp, (c) a transformer, the primary winding of said transformer in a series electrical circuit with a manually operated operating switch and a fuse and a source of alternating current, the transformer having three secondary windings, each of said three windings terminating in a pair of terminals, one terminal of the first of said three secondary windings electrically coupled to the other terminal of said one of said lamps, one terminal of the second of said three secondary windings electrically coupled to the other terminal of said other of said lamps, one terminal of the third of said three secondary windings coupled electrically to the other terminal of said first winding, (d) said third clamp electrically coupled to said one terminal of said third winding, (e) a glow emitting discharge device, said discharge device having a pair of terminals, one of said discharge device terminals electrically coupled to the other terminal of said third winding, the other terminal of said discharge device electrically coupled to said second clamp, and (f) at least one electrical receptacle, the receptacle having a pair of contacts for electrical connection with said lead wire, one of said contacts electrically coupled to said one terminal of said third winding, the other of said contacts electrically coupled to the other terminal of said second winding.