Greg, sorry to ask this dumb question, but I think I'm doing this wrong.? So the shield is ground the white is PTT and Black is also ground.? What is the red cable?? I cant get anything on the meter? Help and lost in Indiana
Thanks
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Your 1/4 inch Phone Connector (Plug) is 3-conductor (stereo).
The engravings show the screw terminal assignments.
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T : Tip
R : Ring
S : Sleeve
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The Drake 7077 (Astatic OEM) microphone has 3-conductors and Shield.
Standard Microphone usage: ?Audio uses 2 wires and Push-to-Talk (PTT) uses 2 wires.
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SO, for wiring to your Drake Radio (3-wires) you have to Combine Ground connections.
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