Astatic Jt 30 Wiring Diagram. With screws intact a mesh screen and a cool looking red silk. The connector is a Switchcraft 58 screw-on model.
All chrome including a volume control with an aluminum knurled knob. Astatic JT-30 Microphone - w adhesive badge screw on connector and 99S556. Adapter Converter for Astatic T3.
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Incidentally I managed to jam a 10meg ohm volume pot into my JT-30 shell for use with a crystal. Clip the wire going from the mic connector to the volume control the red wire in the wiring diagram I linked to above. Fast Free shipping on many items. 220 20 Shipping.