From the mid-1950s through the 1960s, in the U.S. the common home record player or "stereo" (after the introduction of stereo recording) would typically have had these features: a three- or four-speed player (78, 45, 33 1⁄3, and sometimes 16 2⁄3 rpm); with changer, a tall spindle that would hold several records and automatically drop a new record on top of the previous one when it had finished playing, a combination cartridge with both 78 and microgroove styli and a way to flip between the two; and some kind of adapter for playing the 45s with their larger center hole. The adapter could be a small solid circle that fit onto the bottom of the spindle (meaning only one 45 could be played at a time) or a larger adaptor that fit over the entire spindle, permitting a stack of 45s to be played. COUNT 4
QSN1 What three speeds were sound on most home stereos in the mid 1950's? ANS1 78, 45, 33 1⁄3 QSN2 What feature of 45s required an adapter in most home stereos? ANS2 larger center hole. QSN3 What feature was found on more home stereos that allowed continuous play between records? ANS3 changer QSN4 What format was less common but could sometimes be found on home stereos? ANS4 16 2⁄3 rpm