Radio Broadcast (May-Oct 1925)

Record Details:

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156-6 RADIO BROADCAST ADVERTISER 3he 3nnegt SRaikio %uht in the W otlA 1 Original Blue Tube (Has Brightson name engraved on every base.) Safety Cased STANDARD True Blue Tubes, fitting 6 volt sockets, are the original Blue Tubes. All others are imitators in color only. No other tubes, whether of blue glass or any other color, have the Brightson True Blue double filament, the same rigid interior construction, giving noiselessness of operation and crystal clear tones. Other qualities of Brightson True Blue Tubes which cost money to duplicate have not to our knowledge been imitated. Brightson True Blue Tubes still stand alone for quality while costing little more than ordinary tubes. Ask Your Dealer for a True Blue Set Demonstration Many dealers are using True Blue Tubes to demonstrate their better sets, particularly superheterodynes and other multi-tube receivers needing absolutely noiseless uniform tubes to show the possibilities of summer loop reception. Get a demonstration. Order Direct if Your Dealer Has Not Yet Been Supplied True Blue Tubes are safety cased singly or in sets. When sending check or money order, be sure to state the type of tubes wanted and please mention your dealer's name. BRIGHTSON LABORATORIES, Inc. Waldorf-Astoria Hotel 16 West 34th St., New York, N. Y. BRIGHTSON i^gJLi^g TUBES ^ Tested and approved by Radio Broadcast ^