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Collins 35C-1 Low Pass Filter for the KW-1 & 32V Series Transmitters #3

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MPN:
35C-1
Condition:
Used
Shipping:
$18.00 (Fixed Shipping Cost)
  • Collins 35C-1 Low Pass Filter in very good used condition. This classic 52-ohm, 500-watt HF low-pass filter provides over 75 dB harmonic attenuation above 54 MHz with minimal insertion loss. Perfect accessory for Collins 32V series transmitters or any vintage amateur radio station to eliminate TVI. Silver-plated construction, rugged Collins quality. Tested and ready to install — a must-have for serious ham radio collectors and restorers
  • Collins 35C-1 Low Pass Filter in very good used condition. This classic 52-ohm, 500-watt HF low-pass filter provides over 75 dB harmonic attenuation above 54 MHz with minimal insertion loss. Perfect accessory for Collins 32V series transmitters or any vintage amateur radio station to eliminate TVI. Silver-plated construction, rugged Collins quality. Tested and ready to install — a must-have for serious ham radio collectors and restorers
  • Collins 35C-1 Low Pass Filter in very good used condition. This classic 52-ohm, 500-watt HF low-pass filter provides over 75 dB harmonic attenuation above 54 MHz with minimal insertion loss. Perfect accessory for Collins 32V series transmitters or any vintage amateur radio station to eliminate TVI. Silver-plated construction, rugged Collins quality. Tested and ready to install — a must-have for serious ham radio collectors and restorers
  • Collins 35C-1 Low Pass Filter in very good used condition. This classic 52-ohm, 500-watt HF low-pass filter provides over 75 dB harmonic attenuation above 54 MHz with minimal insertion loss. Perfect accessory for Collins 32V series transmitters or any vintage amateur radio station to eliminate TVI. Silver-plated construction, rugged Collins quality. Tested and ready to install — a must-have for serious ham radio collectors and restorers
  • Collins 35C-1 Low Pass Filter in very good used condition. This classic 52-ohm, 500-watt HF low-pass filter provides over 75 dB harmonic attenuation above 54 MHz with minimal insertion loss. Perfect accessory for Collins 32V series transmitters or any vintage amateur radio station to eliminate TVI. Silver-plated construction, rugged Collins quality. Tested and ready to install — a must-have for serious ham radio collectors and restorers
$49.99
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Description

This Collins 35C-1 Low Pass Filter for the 32V Series Transmitters, is in Excellent Condition and provides 75 dB attenuation.

Collins 35C-1 Low Pass Filter (Vintage Ham Radio / Amateur Radio Accessory)This is a classic Collins Radio Company low-pass filter from the late 1940s–1950s, primarily designed as an accessory for the Collins 32V series transmitters (32V-1, 32V-2, 32V-3, KW-1) to suppress harmonics and reduce TVI (Television Interference). It was a popular accessory in the early days of amateur radio when TVI was a major issue.
 
 
Key Specifications
  • Impedance: 52 ohms
  • Power Handling: Up to 500 Watts
  • Attenuation: More than 75 dB to harmonics above ~54 MHz
  • Insertion Loss: Approximately 0.2 dB or less below 29.7 MHz (covers 80–10 meter amateur bands)
  • Design: 3-section low-pass filter, silver-plated internals, housed in a cylindrical metal enclosure for excellent shielding
  • Connectors: Typically "N" input/output
  • Purpose: Passes HF frequencies (up to ~30 MHz) while strongly attenuating VHF harmonics that could interfere with television broadcasts
It is a passive, robust, high-quality filter built to Collins' legendary standards.

It has the original N connectors. They are rare to find these days.

 This one is in Very Good condition.

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