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Push-button superhet.
•k AC-DC, 5-tube superhet, portable house radio tuning 540 to 1,650 kc. Has six-station automatic tuning, built-in antenna, 5 inch dynamic speaker. Bakelite cabinet in walnut or ivory finish. Model 519. Belmont Radio Corp., 1257 Fullerton Ave., Chicago — Radio Today.
Dry electrolytic kits
Handy kits containing six or twelve Sprague atom condensers, take little space in service kit. Will safely replace larger ones. Catalog available. Sprague Products Co., North Adams, Mass.— Rapto Topay.
AC-DC chokes
* Replacement chokes for ACDC receivers. Designed with resistances of 200, 250, 300, and 350 ohms. Produce minimum voltage drop. Catalog No. 400 available. Thordarson Elec. Mfg. Co., 500 W. Huron St., Chicago, 111. — Rapio Topay.
Companion set
4-tube portable super-het tuning 550 to 1,500 k.c. Built-in antenna, fine selectivity and tone quality. Self-contained, long-life batteries. Stewart-Warner Corp., 1826 Diversey Pky., Chicago. — Rapto Topay.
Substitute speaker and vibrator tester
* Universal type substitute speaker with meter calibrated in watts output. PM-type speaker with output transformer for matching loads from 2000 to 30,000 ohms. Field resistance from 300 to 10,000 ohms. Vibrator tests under actual operating conditions. Complete A battery circuit for auto radio testing. Model TS-50. Hickok Electrical Instrument Corp., 10514 Dupont Ave., Cleveland, Ohio. — Rapto Topay.
Hunt Hew Ukqs
Latest news of radio products from manufacturers
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Univex projector
500-watt 8-mm. projector with efficient cooling system. Projects up to 5x7 ft. using high-speed lens of F:1.6. Threaded focusing adjustment. G-E pre-focused lamp socket, heavy duty AC-DC universal motor with variable speed control. $42.50 list. Universal Camera Corp., 32-46 W. 23rd St., New York, N. Y.— Rapto Topay.
Tubular capacitor
Paper tubular capacitor, supplementing old type DT "Dwarf Tiger." Impregnated in Dykanol "D," no additional price. Approximately fifty capacities available in 400, 600. 1,000, and 1,600-volt ratings. Catalog No. 165A on request. Cornell Dubl
lier Elec. Corp., S. Plainfield, N. J. — Rapto Topay.
Television oscillator
* Ultra-high-frequency test oscillator designed for servicing television receivers. Tunes 22 to 150 megacycles in one continuous band. Overall accuracy better than 2 per cent. Uses inductance type tuning. Dial turns 16 revolutions. Battery operated— weight 16 lbs. Rod-type antenna and conventional output through resistance attenuator. Pro
»» *
vision for crystal operation and external modulation. Provides signal when stations are not on the air. Model 787. Weston Electrical Instrument Corp., 614 Frelinghuysen Ave., Newark, N. J. — Rapto Topay.
Rider electronic
volt-ohmmeter
* Multi-range DC voltmeter having 16-megohm constantinput resistance. Voltage ranges of 0/5/10/25/100/250/500/1000/2500/ 5000 at 2 per cent accuracy. Resistance ranges of 0/1M/10M/100M/1 meg/10 meg/100 meg/lOOOmeg. Electronic circuit using push-pull arrangement statically and dynamically balanced. Zero adjustment does not require resetting when changing ranges. Permits voltage measurements in all circuits under dynamic operating conditions. Stabilized self-contained power supply, AC operated. Rider Volt-Ohmyst — net $57.50. Service Instruments, Inc., 404 Fourth Ave., New York, N. Y— Rapto Topay.
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