Radio Broadcast (Nov 1923-Apr 1924)

Record Details:

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RADIO BROADCAST ADVERTISER 5,000,000 Owners of Single Circuit Sets Are Waiting to Buy this Copp Vario-Selector Patent Applied for because: It Will Change any Single Circuit Set to a Double Circuit Set, without rewiring and without re-building. Simply connects to antenna and ground and it is done. Elimina tes Re-Radia tion. This will be a great boon to Broadcast Stations and to all owners of Broadcast Receiving Sets. 3. Gives Selectivity to a Single Circuit Set equal to any three circuit tuner, preserving the Single Circuit simplicity of tuning. Note: The Copp Vario-Selector is not a Wave-Trap. The Copp Vario-Selector is sold in a Sealed Cabinet, beautifully finished with engraved bakelite panel, and is guaranteed by us absolutely. Signed guarantee with every instrument. Order from your dealer or direct. Circular on request. Jobbers and Dealers write us for samples and discounts The A-C ELECTRICAL Mfg. Co. Dayton, Ohio ^Makers of Electrical Devices for Over 20 Years rhe choice of foremost Engineers * over KADio protectOK e/lpproved by the National Boardof Fire Underwriters ^skTOlJRJnsuranceA^ent ^ L.S. BRACH MFG. CO., Nevcrarl<^ New Jersey SOLDERALL 0 X Metal in Paste Form, 25f Handy Tubes Every Electrical Connection Needs colderall for Perfect Reception 'Jhe Only Convenient Metal Solder) Amplifying TRANSFORMERS — are the largest selling transformers in the world — are standard on the better sets — are endorsed by the leading radio engineers — are recommended by all the better dealers. Over half a million in use and giving real satisfaction. THE BEST ^ PAY NO i MORE ! Audio Freq. 3-1, $4.50, 5-1, 10-1, $4.75. R.F. $4.50. Power $6 ea. •jt Tested and approved by Radio Broadcast