The Tektronix DC505A is a Frequency Counter Plug-In that is
designed to operate in a TM 500-Series Power Module.
Other Info:
Has seven measurement functions: frequency counting, finding frequency
ratios, period timing, interval timing, width timing, electronic event
counting, and manual event counting.
Two input channels (A&B), each have BNC inputs and separate triggering
levels, attenuators, and coupling mode controls, and 225 MHz capability.
Provides 7-digit LED display.
