Combined measuring device `` AVO-63 '' (School).
Instruments for adjusting and controlling the PTA.The combined measuring device "AVO-63" (School) has been produced since the beginning of 1963. The combined measuring device `` AVO-63 '' (School) is designed to measure direct and alternating voltage from 0 to 1000 volts, direct and alternating current from 0 to 500 mA, as well as resistance from 1 Ohm to 2 MΩ. Switching between measurement modes is manual by inserting the phase probe into the corresponding socket. There is a switch for measuring constant or variable values and a regulator for setting the end mark on the scale when measuring resistance. The accuracy class of the device is 2.5. The power supply for the operation of the ohmmeter of the device consists of 3 elements: FBS-0.25, 1.3-FMC-0.25, 332 or 336. In 1977 the device was updated, having received a case made of unbreakable plastic and a new dial indicator. The device was without a lid like the previous one, but it had a gray and blue iron case with a closing lid. The device was named as "AVO-63" (Training).
