Simplest 455 KHz Oscillator uses only three parts negative resistance ceramic filter oscillator ceramic resonator oscillator
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Original New 100% Ceramic Filter Sfu455y 455khz Dip 3pin 455a 455b (inductor) - Inductors - AliExpress
Ceramic Filters for AM (LTP) Series - DeMint Components
Murata's CFU, CFW, SFP 450kHz to 455kHz Ceramic Filters | TTI, Inc.
Buy Wholesale China Lt455u Ceramic Filter, Center Frequency 450/455 Khz, Low Insertion Loss, High Selectivity & Lt450u Ceramic Filter, Sjk Filter,8×7×8mm 4db, at USD 0.001 | Global Sources
455KHz SMT Ceramic Filter Murata SFGCC455AX2-TC | West Florida Components
455 KHz IF +/-13.0 (26) KHz BW 15-ELEMENTS Murata Ceramic Comm FILTER, FREE SHIP | eBay