Magicore If Transformers

Designed to meet the demand for greater selectivity on the Amateur Bands. Modernize your present Communication Receiver by installing a set of MAGICORE I.F. TRANSFORMERS. Three stages will reduce the I.F. Channel Bandwidth from an approximate 20KC. to from 3 to 5 KC. wide, with gain equal to that of an air core amplifier. The Ultra-Selective Characteristic ofthe MAGICORE I.F. TRANSFORMERS is due to the use of a newly developed iron core composed of a magnesium-ferrous alloy resulting in a coil with a Q factor hitherto unattainable. Note extremely loose coupling.

MAGICORE I.F. TRANSFORMERS (Communication Type — 465 KC.) CI-50 Interstage (58's or 6D6's)

CI-51 Crystal Input or Diode Det. Input (Secondary Centertapped) CI-52 Crystal Output (Step-up to First I.F. Grid)

LIST PRICE $2.00

COTO RADIO PRODUCTS and bulletins are available at all leading jobbers. List prices are subject to usual amateur discount.

COTO-COIL COMPANY, Inc., PROVIDENCE, R. I.

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