1783 analog preamplifier (linc) system building block
Digital Equipment Corporation (DEC)
Stamped into the side of the aluminum frame and etched in solder near the insertion end
Stamped into the side of the aluminum frame
overall: 1/2 in x 4 1/2 in x 7 in
The board is surrounded by an aluminum frame and a blue plastic connector. On the component side there are eight black potentiometers as well as other components. "1783 Analog Preamplifier (Linc)" is etched in solder near the insertion end of the board.