This is a tube-type timing machine but it is still a quality piece of equipment. These machines date back to the early sixties.
The front panel and controls. A very straight-forward layout.
The error rate per 24 hours is read directly from the left knob scale after aligning the lines on the disc with the printed trace.
The proper beat for the watch is selected by depressing one of the three push buttons.
The amplitude of the signal from the watch holder is adjusted using the right knob.
The printout is started and stopped by depressing the square button.
Setting the roller at 1 gives a direct readout from the +/- knob scale. Setting the roller to the 1/2 position doubles the resolution. For example, in the 1/2 position an error rate of 3 seconds would read as 6 seconds. This helps in reading small errors.
The red light is the power on indicator.
Under the hood. I've already cleaned the unit and checked all the tubes.
The oscillator tube on this unit has been changed from an E80CF to a GB1252 tube and the chassis relabeled - The tube pin out is the same for both.
The machine can use impact sensitive paper so the ribbon is only needed for plain paper.