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Collins F455 FA 21 9V2 Filter for 75S-3B & 75S-3C Receiver NEW in the Box

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MPN:
526 9427 00
Condition:
New
Shipping:
$10.00 (Fixed Shipping Cost)
  • NOS Collins F-455-FA-21 Mechanical Filter P/N 526-9427-00. 455 kHz IF, 2.1 kHz @ 6 dB SSB filter—standard for Collins 75S-3B/3C receivers and KWM-2A. Sharp skirts, excellent shape factor, legendary Collins quality. Perfect original replacement or upgrade for S-Line equipment. Rare New Old Stock in excellent condition. Fast shipping
  • NOS Collins F-455-FA-21 Mechanical Filter P/N 526-9427-00. 455 kHz IF, 2.1 kHz @ 6 dB SSB filter—standard for Collins 75S-3B/3C receivers and KWM-2A. Sharp skirts, excellent shape factor, legendary Collins quality. Perfect original replacement or upgrade for S-Line equipment. Rare New Old Stock in excellent condition. Fast shipping
  • NOS Collins F-455-FA-21 Mechanical Filter P/N 526-9427-00. 455 kHz IF, 2.1 kHz @ 6 dB SSB filter—standard for Collins 75S-3B/3C receivers and KWM-2A. Sharp skirts, excellent shape factor, legendary Collins quality. Perfect original replacement or upgrade for S-Line equipment. Rare New Old Stock in excellent condition. Fast shipping
  • NOS Collins F-455-FA-21 Mechanical Filter P/N 526-9427-00. 455 kHz IF, 2.1 kHz @ 6 dB SSB filter—standard for Collins 75S-3B/3C receivers and KWM-2A. Sharp skirts, excellent shape factor, legendary Collins quality. Perfect original replacement or upgrade for S-Line equipment. Rare New Old Stock in excellent condition. Fast shipping
$149.99
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Description

Collins F455 FA 21 9V2 Filter for 75S-3B & 75S-3C Receiver NEW in the Box 

New in Original Box, Collins F-455-FA-21 Mechanical Filter P/N 526-9427-00. 455 kHz IF, 2.1 kHz @ 6 dB SSB filter—standard for Collins 75S-3B/3C receivers and KWM-2A. Sharp skirts, excellent shape factor, legendary Collins quality. Perfect original replacement or upgrade for S-Line equipment. Rare New Old Stock in excellent condition.
 
 
Compatible Radios and UsesThis is a standard SSB mechanical filter (2.1 kHz bandwidth) used in Collins S-Line equipment, specifically the factory standard filter for the 75S-3B and 75S-3C receivers. It was also used in the KWM-2A transceiver and some military/commercial Collins gear (e.g., AN/URC-58).
 
 
It is compatible with other 455 kHz IF Collins radios (S-Line series, 32S transmitters, etc.) as a replacement or additional filter position. Enthusiasts also adapt FA-series filters into other vintage receivers (e.g., certain Hammarlund models or homebrew projects) for improved SSB selectivity.
 
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Specifications
  • Center Frequency: 455 kHz nominal.
     
     
  • Bandwidth: 2.1 kHz nomnal @ 6 dB; 5.3 kHz nominal @ 60 dB. Excellent shape factor with steep skirts.
     
     
  • Type: FA case style mechanical bandpass filter (rectangular plug-in, often with mounting posts/nuts).
  • Other: Low insertion loss (typically ~6 dB or less), high stability, multi-resonator design. Optimized for SSB with good carrier rejection and passband flatness. Designed for high-performance communications receivers/transceivers.
     
     
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