1/4" LOCK-EXTENSION JACKS AND PLUGS

1. Number 133
2. Number 298

click here to download a schematic drawing
(you will need to have Adobe Acrobat installed on your system to do this)

FEATURES

Modified Littel-Plug® phone plug, 2- or 3-conductor, with coupling ring that can be threaded to thread projection of mating panel jack or to threaded end of the Lock-Extension Jax®. Locks connection after plug has been fully inserted into its mating panel jack or Extension Jax®.

Lock-Plug® makes proper contact to mating jack without tightening or attaching coupling ring, when rapid disconnect may be desired. Lock-Plug fits any standard jack with 3/8".-32 thread bushing with .094 inches of the bushing exposed. Lock-Extension Jax also will mate properly with standard phone plugs, where no "lock" requirement exists.

SPECIFICATIONS

Lock-Plug

Tip Rod, Body, Handle and Coupling Ring: Nickel-plated
copper alloy.

Terminals: Brass, electro-tinned. Solder lug design,
cable clamp part of sleeve terminal.

Insulation: Rigid plastic.

Lock-Extension Jax^®

Housing (or Sleeve) and Handle: Nickel-plated
copper alloy.

Terminals: Sleeve: Plated steel. Tip and Ring:
integral part of tip and ring springs.

Springs: Spring tempered copper alloy.

Insulation: Molded thermoplastic insert.
Rigid plastic terminal washer.

Lock-Extension Jax®
Part Number	Cond.	Terminals	Typical Mating Jack	Handle Part Number	Notes
133	3	Solder Lug & Cable Clamp	298	T1485	Sleeve terminal has cable clamp. Similar to Switchcraft® Number 131 Extension-Jax®.

Lock-Extension Jax®
Part Number	Cond.	Terminals	Typical Mating Jack	Handle Part Number	Notes
133	3	Solder Lug & Cable Clamp	298	T1485	Sleeve terminal has cable clamp. Similar to Switchcraft® Number 131 Extension-Jax®.

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