Simpson 1000 - Page 11

TUBE INFORMATION
A new roll chart will show all the new tubes which were
developed during the previous year. This includes the pre-
vious tube list and those shown in the latest Supplement.
HOW TO REPLACE A ROLL CHART
When you replace your roll chart with the new edition, you
have the assurance that all the tubes which you wrote in
with information from the previous supplement will now be
included in their proper positions in the roll chart, as will
the added new tubes for which settings were obtained after
the last supplement was issued.
To replace a roll chart, remove the panel from the case of
the Model 1000. Then remove the four Phillips head screws
which hold the mounting brackets to the front panel. When
the bracket is removed from the front panel, pull the ends
to free both rollers and take the rollers out of the bracket.
Unroll the chart from both rollers and remove the tape
which holds the chart to each roller.
1. Attach the top end of the chart to one roller with some
good grade adhesive tape. The printed face of the chart
must be away from the roller.
2. Wind the new chart onto the roller smoothly, being sure
that it does not wrinkle or bind on the side wheels.
3. Place the other roller under the one on which the chart
is wound; then pass the bottom end of the chart through
the opening between the rollers and fasten it to the sur-
face of the lower roller with another piece of adhesive
tape.