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Re: Anyone know what setting these Japanese tools were used in?

 

Maybe it's for a TRS PL-068 plug connector, which was for vintage
Collins KWM-2 radio microphone; 7/32 inch diameter...

Mike N4MWP

On 7/14/24 21:58, Dale H. Cook wrote:
On 7/14/2024 7:15 PM, Burt K6OQK wrote:

Possibly you have what's referred to as a "PL310," which is common in
more recent professional audio patch bays.? They are TRS for Tip,
Ring, Sleeve.? At first the kinda look like 1/4", but they're smaller.
Professional audio patch bay plugs and jacks come in two sizes - 1/4"
TRS (old school. for balanced lines, based on AT&T standards) and 1/8"
TRS (new school, for balanced lines, often using two plugs in a single
plastic barrel for stereo).
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