A simple transformer bridge for the measurement of transistor characteristics
W.F. Lovering, D.B. Britten · The proceedings of the Institution of Electrical Engineers. Part B, Radio and electronic engineering, including communication engineering · 1957
The paper describes a transformer bridge for the measurement of the impedance parameters of point-contact or junction transistors at 1000c/s. The bridge is simple and rapid in operation and measures both real and imaginary components of the parameters. A modification of the bridge connections measures the components of a simple equivalent circuit of a junction transistor.Further modifications are suggested which will allow for the measurement of admittance parameters or h-parameters, direct measurement of the impedance parameters of junction transistors connected in the common-emitter circuit, or measurements at radio frequencies.