We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
RADIO BROADCAST ADVERTISER 199 AmerChokc Type 854 #6.00 each AME RTRAN RADIO PRODUCES 7 The AtnerTran Power Transformer Type PF-52 Type PF-51 is intended for use in the best power sup- ply developments. It will convert the standard no volt, 60 cycle alternating house lighting current to a higher voltage for plate and low voltage for filament sup- P^ Price $18.00 Each pliable Qhoke for Filter Circuits The AmerChoke Type 854 is a choke coil or imped- ance designed primarily for use in filter circuits. As an output impedance with a fixed condenser it forms an ideal filter for the loudspeaker, insuring tone qual- ity equal to the average output transformer. And it will be more economical. For filter circuits in " B " Eliminators, the AmerChoke will give perfect results due to its scientific design and generous proportions. To obtain even, quiet current supply use the Amer- Choke and the AmerTran Power Transformer (de- scribed at the left) in the construction of your power amplifier. The AmerChoke type 854 has a noload in- ductance of approximately 100 henrys at 60 cycles with average close butt joints. Mag- netic saturation from direct current is pre- vented by two butt joints in the iron core. The AmerChoke shipping weight is about 5 pounds and the price $6.00 each F. O. B. Newark, N. J., or at any Authorised Amer- Tran Dealer. AMERICAN TRANSFORMER COMPANY 178 Emmet Street Newark, N. J. "Transformer Builders for over Twenty-five Years" Other AmerTran Products: We shall be very glad to send you upon request a copy of our booklet "Improving the Audio Amplifier" together with other interesting con- structional data. The AmerTran DeLuxe Audio Transformer This new transformer sets an entirely new standard of Audio Amplification. It makes possible a transformer coupled amplifier that ex- cells all other forms of am- plifiers. Made in two types for first and second stages— Price 5(10.00 Each AmerTran Resistor Type 400 $7.50 AmerTran Heater Trans- former Type H-i8 (for A. C. Tubes) $10.00. AmerTran Types AF-7 and AF-6 AmerTran Audio Transformers, types AF-*? and AF-6, have been considered for years among the leaders in audio amplification. These popu- lar and efficient models are made in two types— AF-7 (ratio jj:i)—AF-6 (ratio 5:1) S5.00 Each Examined and approved by RADIO BROADCAST