The Technics SL-1200 is a series of turntables manufactured since October 1972 by Matsushita under the brand name of Technics. Originally released as a high fidelity consumer record player, it quickly became adopted among radio and club disc jockeys. Since its release in 1978, SL-1200MK2 and its successors have been the most common turntable for DJing and scratching.
The MK2 presented several improvements, including to the motor and casing. Since 1972, more than 3 million units have been sold. It is widely regarded as one of the most durable and reliable turntables ever produced.
Many of the models manufactured in the '70s are still in heavy use. Rappers have referred to the turntable as "1200", "Tee 12's", "Technics", "Tec 12", "wheels of steel" and "ones and twos". The features that set the SL-1200 apart are: It is possible to tell the year (and the month) when the SL-1200 was manufactured from the serial number on the back or bottom of the turntable.
SL-1200 serial numbers are in two different formats, depending on the date of manufacture. It isn't exactly possible to determine the decade in which the SL-1200 in question was manufactured, as the serial number contains only the last digit of the year. If the year digit is 8, the turntable may have been manufactured in 1978, 1988, 1998 or 2008.
If the year digit is 0, the turntable may have been manufactured in 1980, 1990 or 2000. One rule of thumb is that old-format serial numbers belong to SL-1200s manufactured during the 1970s and 1980s, while new-format serial numbers belong to SL-1200s manufactured during the 1990s and beyond.