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RADIO BROADCAST ADVERTISER
Shows You at a glance!
BATTERY ELIMINATOR VOLTAGE
WESTON
High Resistance Battery Eliminator Voltmeter
— and how vitally important is that glance! Because battery substitutes bring you an entirely new standard of radio operation. C[ Accurate knowledge and control of battery eliminator voltage is essential to perfect reproduction. For, without the use of a quality high resistance voltmeter you have no assurance that the eliminator is delivering its rated voltage and that the set is performing at its best. C[ And now — instant, accurate batetry substitute voltages at a glance from the new Weston Battery Eliminator Voltmeter. C[ Why? Because the Weston Model 489 Battery Eliminator Voltmeter is made with an especially high internal resistance of 1000 ohms per volt which means that only one milliampere is required to produce full scale deflection. The usual low resistance voltmeter will not meet the requirements because too much drain would be placed on the eliminator and it would not deliver its rated voltage. (( This new instrument is made in two double range combinations of 200/8 and 250/50 volts. It is encased in Bakelite and is compact and handsome in appearance. A pair of 30 -inch flexible cables is supplied with each instrument. While this Voltmeter is especially intended for measuring the voltage from battery eliminators it can also be used to measure any other D. C. voltage within the range of the instrument.
Send for the interesting free booklet * f Weston Radio Instruments'* that describes this model and gives the complete story of the Weston Radio Line.
WESTON ELECTRICAL
INSTRUMENT CORPORATION
179 Weston Avenue, Newark, N. J.
STANDARD THE WORLD OVER
WESTON
Pioneers since 1888
(lAdd the new
Balkite Combination
to your radio set now
with your A" battery it supplies all radio power automatically from the light socket
Now you can make your radio set a light socket receiver by merely adding the new Balkite Combination Radio Power Unit. Once connected to your "A" battery and set and plugged into the light socket, it subfiles automatic power to hoth circuits. You need not even turn it off and on, for it is controlled by the filament switch already on your set and is entirely automatic in operation. It will give you a constant quality of reception that cannot be secured in any other way.
Balkite Combination can be installed in a few minutes. It has no tubes, nothing to replace or renew and is a permanent piece of equipment. It is noiseless in operation. It will serve any set now using either 4 or 6 -volt "A" batteries and requiring up to 30 milliamperes at 135 volts of "B" current — any set of 8 tubes or less, including power tubes.
Add Balkite Combination now and know the pleasure of owning a receiver always ready to operate at full power not only this season but for years to come. Price $59-50. [In Canada $83.] Ask your dealer. Fansteel Products Company, Inc., North Chicago, III.
Walter Damrosch and the New York Symphony on the Air
Every other Saturday night a symphony concert. On alternate Saturdays one of Mr. Damrosch' s famous piano recitals. Over Stations: WEAF.WEEI, WGR, WFI.WCAE, WSAI, WTAM, WWJ, WGN, WCCO, KSD, WDAF, WOC, WCAP. Balkite Hour Saturday Evenings: 9 P. M. Eastern (8 P.M. Central) Standard Time.
F£n_SteeL. "I
Balkite
Tin d/o 'Power Units