Product Overview
Archer 274-725 4mm Panel Mount Solder Terminal Banana Sockets
Condition
Unused new old stock (NOS). Includes one red and one black panel-mount jack with threaded barrels, hex nuts, and solder lugs. Card markings read: Cat. No. 274-725, ARCHER, Radio Shack.
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Product Overview
Archer catalog number 274-725 provides a color-coded pair of insulated 4 mm banana jacks designed for chassis and panel mounting. Solder lug terminals and threaded mounting bushings allow secure point-to-point wiring in custom enclosures, power supplies, and test gear.
Key Features
- Standard 4 mm banana jack receptacle accepts standard test leads and banana plugs
- Color-coded set includes one red and one black insulated jack
- Threaded bushing mounts into 1/4-inch (6.35 mm) panel cutouts
- Solder lug terminals for direct wire connection
- Includes hex nuts and insulating shoulder washers for panel isolation
Applications
- Installing dedicated DC voltage output posts on benchtop power supply builds
- Adding external probe connections to custom test fixtures and prototype enclosures
- Restoring or replacing worn binding posts on vintage audio amplifiers and speakers
- Wiring breakout boxes and electronic hobby projects requiring quick-disconnect leads
Frequently Asked Questions
What size hole is required to mount these jacks?
These jacks require a standard 1/4-inch (6.35 mm) diameter hole for panel mounting.
What size banana plug fits these receptacles?
They accept standard 4 mm banana plugs, including shrouded and unshrouded test leads.
Are these jacks electrically isolated from a metal chassis?
Yes. The plastic shoulder washer isolates the conductive threaded barrel and solder lug from the mounting hole, preventing contact with metal enclosures when properly seated.
Before everything went modular, every custom bench supply started with a 1/4-inch drill bit and a pair of dependable panel posts. Drill the chassis, tighten the hex nuts, and put your project into service.
