Sweet red Toshiba KT-RS30 with LOW serial number! 76300068   In the mid eighties Toshiba would use serial numbers that started with three numbers or two numbers and a letter. From this number one could find out  where and when the player was made, what lot of the sequence and number of made. John Edward had a thread with more on serial numbers. I believe it was John Edwards 21 Toshiba Collection.