Product Overview
Straight Solder-Type RF Plug for RG-8 and RG-213 Coax Lines
Condition
New old stock (NOS). Unused vintage component with clean bright metal surfaces and unused solder contact points. Markings stamped on the outer sleeve read AMPHENOL 83-1SP and 74868 PL-259. Two-piece assembly consists of the threaded outer coupling nut and the center conductor plug body.
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Product Overview
Amphenol 83-1SP is an industry-standard PL-259 straight UHF male solder plug designed for heavy-gauge 50-ohm coaxial cables including RG-8, RG-9, and RG-213. Built with durable brass construction and a 5/8-24 threaded coupling nut, it provides reliable mechanical and electrical termination for RF communications up to 300 MHz.
Key Features
- Standard UHF male (PL-259) interface with 5/8-24 threaded coupling nut
- Directly compatible with RG-8, RG-9, RG-11, RG-213, and RG-214 coaxial cables
- Solder-cup center pin and body solder windows for secure outer shield grounding
- Operating frequency range from 0 to 300 MHz
- Solid brass construction with knurled coupling sleeve for reliable grip
Applications
- Amateur radio (ham) antenna feedline termination, tuner connections, and transceiver patch cables
- CB radio base station and mobile antenna setups requiring robust RG-8 or RG-213 cable connections
- Maker and hobbyist RF benches, dummy load terminations, and custom antenna selector boxes
Frequently Asked Questions
What cable diameter does this connector accept directly?
The 83-1SP directly accommodates standard 0.405-inch outer diameter coaxial cables, including RG-8, RG-9, RG-11, RG-213, and RG-214.
What is the thread pitch on the outer coupling ring?
The outer coupling nut features standard 5/8-24 UNEF threads, designed to mate with standard SO-239 (UHF female) panel receptacles and cable jacks.
Can this plug fit smaller RG-58 or RG-8X coaxial cable?
It requires a standard reducing adapter (UG-175 for RG-58 or UG-176 for RG-8X) to properly seat and center smaller cable diameters. As manufactured, the body diameter is sized for direct termination of 0.405-inch lines like RG-8.
Decades of ham shacks and field antenna masts were built on Amphenol PL-259s soldered hot and threaded down tight. Strip your braid clean, heat the pin, and put this classic connection back on the air.
