National Cash Register Class 500 User Manual - page 16
Page 16
Illuminated Indication
On registers, having this feature, it is important that lamps of the proper voltage be used.
Registers having four lamps are wired with the two lamps on each side in series, in which case
the lamp voltage of each lamp should be one-half the maximum line voltage.
Registers having but two lamps, controlled by a time limit switch, are wired with the lamps in
parallel, in which case the lamp, voltage of each lamp should equal the maximum line voltage.
Registers having but two lamps, controlled by the drawers, are wired in series in which case the
lamp voltage of each lamp should be one-half the maximum line voltage.
Example: The motor plate calls for a line voltage from 110 to 120 volts. If a register with four
lamps in series, a 60-volt lamp should be used. If a register with two lamps in parallel, a 120-volt
lamp should be used.
If there is but one voltage specified, consider it the minimum voltage and allow for an added
variation of about 10 volts.
Example: The motor plate calls for 110 volts; furnish a 60 or 120-volt lamp which allows for the
added variation.
Price List of Supplies
Check paper can be obtained through our local offices or by writing to The National Cash
Register Company, Dayton, Ohio. This paper is furnished in white, green, yellow or pink. An
assortment of colors can be obtained in one shipment. Some merchants prefer using different;
colors on certain days of the week.
In ordering printed supplies, detail or check paper, always send sample and order four weeks in
advance of the time you will need it.