MK4 and the current GAE/G/GR have rca connectors.
They did. Early MK2 ad, 1979:
Also, a promo brochure at that time is pointing that the quartz controlled pitch "will be appreciated by disco djs who wish to maintain consistent rhythm when changing records."
In the 1980 Technics catalogue it was described as the standard equipment of every better discotheque due to its reliability.
Bookmarks