TM 9-6695-274-14
Figure 1-50-1. Tektronix, Type PS 503A, Power Supply.
Tektronix, Type PS 503A, Power Supply (fig. 1-50-1) features superior dual tracking performance, over-voltage protection,
and remote resistance programming of voltage. When operated in the high-power compartment of a TM 515 or TM 506
mainframe, Type PS 503A provides up to 1 A from both + and -, 0 to 20 V supplies. The voltage output is variable 0 to +20
V dc with respect to the common terminal or 0 to 40 V dc across the + and -terminals. Outputs can be varied
independently or at a constant ratio. If the two supplies are set independently to any given voltage ratio and then varied by
use of the VOLTS DUAL TRACKING control, the two supplies will maintain the same voltage ratio as initially set within +50
mV. The current limit adjustable from less than 100 mA to 1 A (high-power compartment) or from less than 40 mA to 400
mA (standard compartment) on each supply.
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