Radio Broadcast (May-Oct 1926)

Record Details:

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448 RADIO BROADCAST ADVERTISER BradteohmE PERFECT VALUABLE RESISTOR for B'Eliminators Bradleyohm-E is a new and enlarged Bradleyohm designed especially for B-Eliminator Voltage Control. The extra long columns of scientifically -treated graphite discs insure perfect voltage control over a wide range. It is made in several ranges for various BEliminator circuits. BradkjoutitA PERFECT FIXED RESISTOR. Bradleyunit-A is a solid molded resistor for radio circuits. It is molded and heat-treated under high pressure, making it impervious to moisture. The silvercapped ends can be soldered without affecting the calibration of the Bradleyunit. Are You Building a B-Eliminator? TF so, follow the example of leading radio engineers and use the Bradleyohm-E and Bradleyunit-A for your voltage control. Most of the well-known factory built B -Eliminators are equipped with Bradleyohms as standard equipment. Surely, no better recommendation of the reliability and stability of the Bradleyohm can be asked. Build permanent performance and high efficiency into your B-Eliminator by asking your dealer for Bradleyohm-E and Bradleyunit-A for your circuit. ^en-Bradley Co. 278 Greenfield Ave., MILWAUKEE, WIS. Use (Men Perfect Radio Devices 6 Sheet Copper for Shielding Shielding Prevents aerial radiation and feedback. Insulates against interference from adjoining circuits. Improves efficiency, selectivity and tone quality. USE SHEET COPPER because it combines low resistance with easy working qualities. COPPER fer* BRASS RESEARCH ASSOCIATION 25 Broadway — New York FROST-RADIO Super Variable Resistance A new non-inductive, non-wearing high resistance unit for controlling volume, tone, regeneration, grid bias. etc. Smooth working and noiseless. Does not vary, even after long use. Tyne 880 (2 terminals) is supplied in 50,000. 100.000. 200.000 and 500,000 ohm siaes; Typo 890 (3 terminals) in 400. 2000. 50.000. 100.000. 200.000 and 500.000 ohms. Both types, $1 .25 each. 'Type 890 , HERBERT H. FROST, Inc. 160N.LaSalleSt.,Chicago NewYorkCity LosAngeles if Tested and approved by Radio BROADCAST if