General Electric 19A115711P7 455 kHz IF Transformer Vintage Mobile Radio NOS

Original General Electric 455 kHz intermediate-frequency transformer supplied in its vintage GE Mobile Radio service parts box. Part number 19A115711P7 is a miniature metal-shielded, adjustable IF transformer manufactured in Japan. Features a top-access tuning core and through-hole terminals for circuit board installation. GE service documentation identifies this component as a 455 kHz frequency transformer with a TOKO PEFCN-14734 series equivalent. Intended for intermediate-frequency tuning and signal coupling in compatible communications receiver circuits. Original GE replacement stock with factory packaging.
LIFECYCLE: OBSOLETE
HISTORICAL BACKGROUND:
General Electric's Mobile Radio Department in Lynchburg, Virginia, manufactured and supported professional communications equipment for commercial, industrial, and public safety applications. Its MASTR radio families used discrete receiver circuitry, including tuned intermediate-frequency stages that provided selectivity and signal amplification. GE service documentation identifies part number 19A115711P7 as a 455 kHz frequency transformer in receiver circuitry. The component is associated with a Japanese TOKO transformer design, reflecting the use of specialized Japanese-made electronic components in American communications equipment. The original GE service parts box and JAPAN marking document its period construction and replacement-parts heritage.