LabGuy's World: 1969 Sony SEG-1A B/W Video Switcher New Addition! 02.09.28 1969 Sony SEG-1A B/W Video Switcher .         Another fantastic find! A very rare Sony SEG-1A. Note the A suffix specifically making this unit remarkably different from the plain SEG-1 that follows. This model is a lot more sophisticated than the non A version as well. Video is switched electronically in the vertical interval the selector buttons are conveniently lighted. The sliders have little mechanical couplers to make tracking them easier. This unit can also be externally synchronized so that it can feed an even larger system if desired. Very sophisticated technology considering the era! This particular model is in pristine condition. In fact it appears unused. Not for long if I get the time to devote to it!         WANTED: Service manuals, operator's manuals and vintage magazine articles on this machine [HOME]......[MUSEUM OF EXTINCT VIDEO CAMERAS] Last updated: January 06, 2005