Ten-Tec Model No 1550 T-Kit Module Board Utility Audio Amplifier. Unbuilt

  Looking for a clean, highly reliable audio stage for your next homebrew project or classic transceiver restoration? Up for grabs is the classic Ten-Tec Model 1550 T-Kit Utility Audio Amplifier module. This circuit mirrors the exact, low-distortion 1.5-watt audio output section used in legendary factory Ten-Tec rigs. Powered by the robust Signetics TDA2611A IC chip, it runs smoothly on 12-15 VDC with built-in protection against motorboating and unwanted oscillations. Features an optional preamp jumper pin for an extra 10 dB of input gain. A perfect addition for any QRP builder, shortwave receiver modifier, or faithful Ten-Tec collector. Grab this elusive piece of American ham radio kit history today