The 10 MHz Dual-beam Oscilloscope PM 3233 has been designed for general laboratory, service and educational applications. Both vertical amplifiers are equipped with a drift-reduction circuit and a fully protected field-effect transistor input. All circuits are entirely transistorized and the transistors have been mounted on supports to enable quick servicing. The instrument features a fully automatic facility which enables triggering on the line and frame sync pulses of a television signal. The oscilloscope can be supplied from either a.c. mains or external d.c. sources. The PM 3233 is equipped with a delay unit which provides signal delay to both channels Ya and Yb.