Straight district transistor A measuring instrument circuit

Published:2012/8/15 2:28:00 Author:Ecco | Keyword: Straight district, transistor A , measuring instrument | From:SeekIC

After the determinand transistor's pins are connected to B , E , C, then people can use the switch to select the tube type: PNP or NPN, and the β value of the transistor can be directly read from 100μA dial instrument. When switch T1 is closed, measurement range β = 0 ~ 100; when T2 is closed, measurement range β = 0 ~ 500. The inductance coil L in the circuit is wound by 0.2mm copper with 1550 turns.



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