Crystal Filter AM, 1.750 MHz, center frequency. Made by C.R. Snelgrove Company, # 246-730-012-001. For specification see spectrum analyser picture, 1" x 2-3/8" x 15/16" H. (Was use in CH-150, Canadian Marconi transceiver). NOS.
Center Frequency 1.750 MHz
6 dB pass bandwidth 5 KHz
60 dB stop Bandwidth 30 KHz
Insertion loss 5 dB
Ultimate attenuation 60 dB
Ripple 1 db
Terminal Impedance 50 Ohms IN, 500 Ohms Out
4 Poles
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