An inexpensive photographic strip-chart recorder for use with a commercially available ultrasonic scanner

A simple arrangement for producing strip-chart records using moving 70mm film and a commercially available motor-driven film magazine is described. The quality of the records is excellent and the cost is about $500. It is necessary to modify the ultrasonic B-mode scanner slightly by connecting the verticle deflection plates of the oscilloscope to one another through an on-off switch.