TM 11-6625-2980-14
voltage range settings. Actual power consumed, of
course, depends on the particular module combination
selected at any one time.
This power capability can best be utilized by
carefully planning the functional combinations of plug-
ins, their external loads, and the resulting power
distributions. Optimum conditions would be (1) equal
loads in all three compartments, (2) as much power as
possible dissipated
In external loads, and (3) operating in an ambient
temperature around +250C.
The TM 503 provides each plug-in module with access
to a pair of heat-sinked, chassis-mounted transistors,
one NPN and one PNP. These Series-Pass transistors
allow the plug-in modules to operate in power ranges not
possible if the power had to be dissipated in the
modules themselves.
A-4