Simpson 1000 - Page 10

TUBE INFORMATION
AVAILABILITY OF NEW TUBE DATA
SUPPLEMENTS
Data for new types of tubes, not available at the time the
roll chart was printed, is prepared in the form of a free
supplement.
To
obtain
a
copy,
write
your
request
to
Simp-
son Electric Co., 5200 W. Kinzie St., Chicago 44, Ill., or
in Canada, Bach-Simpson Ltd., London, Ontario.
HOW TO USE YOUR SUPPLEMENT
Only four simple steps are required to add the information
shown in the Supplement to your Simpson Model 1000 Roll
Chart.
1. Rotate the wheel to locate the place on the Roll Chart
where you will add this information under one of the
plastic covered windows.
2. Lift the cover out of the window. It snaps out of place.
3. Write the new tube data on the roll chart according to
the column headings.
4. When all the new tube data has been listed (and you
have checked your work for accuracy), push the plastic
cover into the window again. It will snap into place.
NEW ROLL CHARTS
Once each year, Simpson Electric Company will make a
new revised roll chart available which will include the
original tube data plus the data on the new tube types.
To keep your Model 1000 up-to-date, send for the revised
roll chart.
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