Radio broadcast .. (1922-30)

RADIO BROADCAST ADVERTISER 421 The New Balkite Charger MODEL J has two charging rates. A low trickle charge rate and a high rate for rapid charging. Can thus be used either as a trickle or as a high rate charger. Noiseless. Large water capacity. Rates: with 6-vo"t battery* 2.5 and .5 amperes: with 4-volt battery, .8 and .2 amperes. Special model for 2540 cycles. Price $ 19.50. West of Rockies $20. Balkite Trickle Charger MODEL K. With 6-volt "A" batteries can be left on continuous or trickle charge thus automatically keeping the battery at full power. With 4-volt batteries can be used as an intermittent charger. Or as a trickle charger if a resistance is added. Charging rate about .5 amperes. Over 200,000 in use. Price $1O. West of Rockies $10.50. A New Balkite "B"at #27.50 Balkite "B" eliminates "B" batteries and supplies "B" current from the light socket. Noiseless. Permanent. Employs no tubes and requires no replacements. Three new models. Balkite "B"-W at $27-50 for sets of 5 tubes or less requiring 67 to 9O volts. Balkite **B"-X for sets of 8 tubes or less; capacity 3O milliamperes at 135 volts— $42. Balkite "B"-Y, for any radio set; capacity 40 milliamperes at 15O volts —$69. Balkite Combination When connected to your "A" battery supplies automatic power to both "A" and "B"circuits. Controlled by the filament switch on your set. Entirely automatic in operation. Can be put e->her near the set or in a remote location. Will serve^any set now using either 4 or 6-volt "A" batteries and requiring not more than 30 milliamperes at 135 volts of "B" current — prac ically all sets of up to 8 tubes. Price $b9.50. All Bulkite Radio Power units operate from 110-120 volt AC current with models for both 60 and 50 cycles. Prices are higher in Canada, oAnnouncing the new Balkite Light Socket Radio Power Units A new Balkite Charger with both trickle and high charging rates. Three new Balkite "BV including the new popular priced Balkite "B" W at $27.50. The new Balkite Combination — with the "A" battery it furnishes automatic power to both circuits. Now you can operate your radio set from the light socket. Merely by adding the new Balkite Radio Power Units — either by adding a Balkite Charger and Balkite "B," or by adding the new Balkite Combination Radio Power Unit. In either case the result is the same — light socket operation, maximum convenience, and smooth silent power. Balkite Light Socket Power is noiseless. There is no hum. It is never low and never runs down, but is always exactly what is required by the set. It is permanent. Balkite Radio Power Units are permanent pieces of equipment. They employ no bulbs, and have nothing to replace or renew. They cannot deteriorate from either use or disuse. Other than a negligible amount of household current their first cost is the last. With sets of high current requirements their use is highly desirable for the saving alone. They require no changes in your set. Over 600,000 radio receivers — one of every ten — are already Balkite equipped. Equip yours with Balkite and convert it into a light socket receiver. Know the pleasure of owning a set always ready to operate at full power. EmSfEf Balkite Manufactured by FANSTEEL PRODUCTS COMPANY, INC., NORTH CHICAGO, ILLINOIS .A. Sale Licensees in the United Kingdom: Messrs. Radio Accessories Ltd., 9-13 Hythe Rd., Willesden, London, N. W. 1O Tested and approved by RADIO BROADCAST