HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD ZIRCUIT BRIDGE

With Q1’s base unbiased, all circuitry is off except the LT1054 as well as-to-minus voltage converter, which attracts a 150μA quiescent recent. When Q1’s foundation is pulled small, its collector supplies electric power to A1 and A2. A1’s output goes superior, turning around the LT1054. the LT1054’s output (Pin 5) heads toward –5V and Q2