Electronics Projects, SAA1042 SN74LS08 For Telescope Motor Drive Circuit article
"motor control circuit, motor driver circuit, " tagged with
Author circuit used for telescope control CNC, robotics and so on. via LPT port can be used in similar projects using circuit has 3 channels Somebody SN74LS08 in other parts used in the SAA1042 stepper motor driver outputs are powered with TIP120 transistors. Data inputs are isolated by Kublin 4N26 opto .. A chart of the engine control board, there pcb drawings ..
Source: jlc31.free.fr/Telescope/Motorisation.html alternative link: saa1042-sn74ls08-for-telescope-motor-drive-circuit.rar