Radio today (Sept 1935-Dec 1936)

NEW SERVICE INSTRUMENTS Triumph test equipment * Visograph sight-sound radio tube merchandiser. Checks all type tubes — has direct reading speed-roll test chart, just turn indicator to desired tube type and reading settings of switches. Reversible indicator panel may be seen from front or back of instrument. Big clear indicators — counter type instrument. Portolab servicing unit — includes tube tester with roll-type index and line volts check, signal generator, multi-range meter. Oscillator covers 100-30,000 kc in 4 bands. Meter has following ranges 0/10/100/1000 volts DC, 0/10/200/1000 volts AC, 0/1000 ohms/1 Meg/10 Megs, DC mils 0/50/500. Entire unit weighs 45 pounds — leatherette-covered carrying case. Net price — $65.55. Triumph Mfg. Co., 4017 W. Lake St., Chicago, 111. — Radio Today — see also advt. p. 59. aillllP'SssisiiiiiiK + Deluxe series of testers — has 2 quadrimeters with dual windows. Tests all tubes and gives complete set analysis. AC and DC voltage ranges — 0/7/35/140/350/700/1,400. DC mils 0/7/35/140/350/700/1,400 and 14 amps. Resist an ce — 0/200/2M/20M/200Mohms/2meg/20meg. 5 decibel ranges from minus 10 to plus 45. English reading tube and electrolytic condenser scales. Entirely self powered with illuminated meters. Model 585 — net $96.95. Supreme Instruments Corp., Greenwood, Miss. — Radio Today — See also advt. p. 43. C-B test equipment * Microvolter signal generator directly calibrated from .1 to V2 microvolt — 100 to 60,000 kc. Modulation variable in accurately known steps from 0 to 75 per cent. Dial scale length of 12% feet directly calibrated. Hand calibrated charts within % per cent supplied. Model 99— net $43.90. Vacuum tube voltmeter with range 0-1.2 volts rms. Peak voltage range 0/10/100 volts for AVC voltages and other potentials where no current drain is permissible. Input resistance of 10 megs — 4%-inch meter. Housed in metal case — baked crystalac enamel finish. Model 88 — net $42.50, Clough-Brengle Co., 2815 W. 19th St., Chicago, 111. — Radio Today — See also advts. pp. 48 and 67. Service estimator + Combined set and tube analyzer designed for diagnosing trouble in customers home. Has tube tester for all type tubes. Voltmeter ranges — 0/5/250/1000 volts. Currents —0/5/250 mils. Resistance — i/2/2000/200M ohms/ 2 megs. Provides for condenser leakage test. Meter of DArsonval type with 1 milliampere movement. Model 25— net $39.50. Burton-Rogers Co., 755 Boylston St., Boston, Mass. — Radio Today Roto-ranger test instruments ■k Radio set analyzer with new roto-ranger meter. 12-independent scales controlled by range selector switch. 0/8/130/1,000 volts AC, 0/8/300/1,000 volts DC, 0/1/8/130 mils DC. 0/100/50Mohms/2megs. Cord and plug or point-to-point analysis of radio. 3-inch scale length on each range. Model 200 — net Set servicer and tube tester with 12 scales and good-bad indication for tubes. Checks resistances, condensers, voltages at 2,500 ohms per volt. Primary fuse and line voltage control. Model 220— net $57. Other devices are meters and signal generators. Simpson Electric Co., 5216 W. Kinzie St., Chicago, 111. — Radio Today — See also advt. p. 51. Meissner I.F. transformers ■A Line of double air-tuned I.F. transformers with either air or Ferro cart cores. Completely eliminate "drifting." Ten complete revolutions (To next page) October, 1936 Index to advertisements on page S3 55