Millivoltmeter `` B3-25 ''.
Instruments for adjusting and controlling the PTA.The millivoltmeter "V3-25" has been produced by the Tallinn plant "Punane-RET" since 1973. The V3-25 millivoltmeter is designed to measure sinusoidal voltage from 3 mV to 3 V, in the frequency range from 100 KHz to 1000 MHz at the measurement range of 10, 30, 100, 300 mV, 1 and 3 V.
