SM-5

The Tektronix SM-5, aka 015-0281-00, is a signal switcher containing six SPDT switches (relays).

Tektronix SM-5
Signal switcher Tek SM-5 Produced from (?) to (?) Manuals please add (All manuals in PDF format and OCRed unless noted otherwise)

Signal connections are via BNC jacks on the rear panel of the unit.