Teletype model ASR 33

T E L E T Y P E A S R - 3 3

TELETYPE CORPORATION
ASR (AUTOMATIC SEND/RECEIVE) MODEL 33

INTRODUCED: 1960
FEATURES:   53 KEY 96 CHARACTER ASCII
            UPPERCASE ONLY KEYBOARD
            72 COLUMN BARREL PRINTER
            64 PRINTING CHARACTERS
            EIGHT LEVEL PAPER TAPE READER
            EIGHT LEVEL PAPER TAPE PUNCH
            WARNING AND MARGIN BELL
            ANSWERBACK MESSAGE (TRANSMITTED
            ON RECEIPT OF ENQ CHARACTER
            OR VIA HERE-IS KEY
            LOCAL OR ON-LINE OPERATION
SPEED:      10 CHARACTERS PER SECOND
INTERFACE: 20 MILLIAMP CURRENT LOOP
            110 BITS PER SECOND
            SEVEN BITS, EVEN PARITY,
            TWO STOP BITS