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Radio Shack Archer Cat. No. 20-021 Antenna Discharge Unit Coaxial Lightning Arrestor / Surge Protector) New, Unused

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MPN:
20-021
Condition:
New
Shipping:
$6.00 (Fixed Shipping Cost)
  • New unused Archer / Radio Shack 20-021 coaxial antenna discharge unit. Lightning surge protector for ham radio, CB & scanner antennas. 500W PEP DC-1500 MHz. Genuine NOS.
  • New unused Archer / Radio Shack 20-021 coaxial antenna discharge unit. Lightning surge protector for ham radio, CB & scanner antennas. 500W PEP DC-1500 MHz. Genuine NOS.
$14.99
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Description

Radio Shack Archer Cat. No. 20-021 Antenna Discharge Unit Coaxial Lightning Arrestor / Surge Protector) New, Unused

 This is very inexpensive protection for your Gear!

Product DetailsThis is a genuine Archer (Radio Shack) inline coaxial surge protector / antenna discharge unit.
  • Connectors: SO-239 (UHF female) on both ends for easy inline installation on coax feedlines.
  • Power Handling: 500W PEP (DC–500 MHz), 200W PEP (500–1500 MHz).
  • Frequency Range: DC to 1500 MHz.
  • Function: Gas discharge or MOV-based protection that safely diverts high-voltage surges (lightning or static) to ground via the grounding lug/screw, protecting your transceiver, amplifier, and other station equipment.
  • Made in Japan for Radio Shack / Tandy Corporation.
This is a classic 1980s–1990s accessory required or highly recommended by the National Electrical Code (NEC) for outdoor antennas. It was popular with ham radio operators, CB users, and scanner enthusiasts.
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