Generator of sound and ultrasonic frequency '' ZG-11 ''.

Instruments for adjusting and controlling the PTA.Since 1957, the generator of sound and ultrasonic frequency "ZG-11" has been producing the Velikie Luki Radio Plant. "ZG-11" is a generator of sound frequencies from 20 Hz to 20 KHz and ultrasonic frequencies from 20 to 200 KHz. The generator "ZG-11" is intended for tuning the sound paths of radio-television devices in laboratory and factory conditions. Read more about the device with diagrams in the reference book.