Simpson 1000 - Page 26

OPERATING INSTRUCTIONS
listing for the tube. Leave the tube in the socket, change
the controls to conform to the second listing, and test it.
At the end of the last test for any tube, press the red push
button, and remove the tube from its socket. When the tube
is out of the\socket, pull all the toggle switches down to
their 0 positions and proceed with the next tube test.
OFF POSITION
After all tubes have been tested, turn off the Model 1000 by
rotating the control knob fully counterclockwise, to its
OFF position. The meter pointer will move back to the left
hand side of the scale. The instrument can be left in this
condition safely while it is not in use.
SET TESTER UP FIRST
The following table summarizes the operating instructions
in step-by-step form. Be careful to observe the proper se-
quence when testing a tube to prevent damage to either the
tube or the tester. Do not place any tube in a socket until
the FILAMENT switch, BIAS and RANGE controls, and
TOGGLE switches have all been sent to the positions in-
dicated in the chart for the tube which you are testing.
TABLE 1. STEP-BY-STEP OPERATING INSTRUCTIONS
1. Connect the power plug to a source of 105 to 125 volts,
50 or 60 cycles AC. Use AC only for the Model 1000.
2. Press in the red RELEASE button at the left hand side
of the panel to restore all black push buttons to up po-
sitions. Set all the toggle switches at 0.
3. Turn the LINE ADJUSTMENT control to the right to
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