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​Tektronix 570 vacuum tube curve tracer style 2

Tektronix 570 vacuum tube curve tracer, style 2. This is fully operational with a 6L6 tube in the socket being tested. The unit is fully operational with new capacitors installed. Calibration resistors are still within spec. Comes with 2-7pin miniature sockets, 2-9 pin miniature sockets, 2-loctal, and 2 octal sockets for testing. I also have many other adapter plates available, from 12 pin to  acorn, to nuvistor. Notice the camera missed some of the traces due to shutter speed. Price..............call for pricing