[Johnson] 4-prong bias plug for Thunderbolt

[Glen Zook]

The pin layout on the old Motorola and General
Electric two-way radio microphones are the same pin
spacing.  However, the insulator around the pins is
usually too large in diameter to fit inside the metal
ring on the Thunderbolt jack.

I have taken the insert and VERY carefully turned them
down using a grinding wheel.  It is a pain in the
posterior to do this but when nothing else is readily
available one does what one has to do.

Glen, K9STH

--- Stephen Victor <victorsj at yahoo.com> wrote:

Does anyone know how I can obtain a plug that fits the
bias socket on the back of the Thunderbolt?  I thought
I had one but the prongs are too wide.









Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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