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Motorola Motrac T power Plug pinout
Posted: Sun Oct 04, 2009 4:57 pm
by cahighwayman22
Anyone have the pinout of an Old T Power Radio, the all tube type, before the motrac? This is the no Vibrator type radio, and the model # is U43GGT-1130C.
Trevor KI6KGN
Re: Motorola Motrac T power Plug pinout
Posted: Sun Oct 04, 2009 6:31 pm
by Bill_G
I'll look for a manual, but don't hold your breath. I haven't touched one in 20 years. I'm thinking Clarkston VFD in MI.
Re: Motorola Motrac T power Plug pinout
Posted: Mon Oct 05, 2009 6:22 pm
by Tron
Are you still looking for these as I have the vibrator manual handy...have to dig for the T power one, but the wiring was the same for both on 12v.
PM me off list if you want.
Tron
Re: Motorola Motrac T power Plug pinout
Posted: Tue Oct 06, 2009 4:46 pm
by cahighwayman22
What I esentially need is the cable to control head wiring diagram, so I can wire a motrac control head to the radio if possible.
Trevor KI6KGN
Re: Motorola Motrac T power Plug pinout
Posted: Wed Oct 07, 2009 1:22 pm
by Will
The T Power radios use different values for the Volume and squelch pots than the Mortac.
The T Power volume pot is 20 ohms and is really a speaker pad, the squelch control is a bias control for the squelch circuit. So the control heads are different enough to need a whole lot of rewiring.
Someone out here may have a T Power control head. They are di-cast, shadow gray color, with three octal sockets on the back cover.
The Twin V control head will work, made of sheet metal.
Re: Motorola Motrac T power Plug pinout
Posted: Sat Oct 10, 2009 4:30 am
by wb0qqk
From the Sherman M. Wolf - Motorola FM Schematic Digest. Hope this helps:
