We present the circuit of the commercial transistor tester Sanwa SC2 sold in Japan in the 1960s. The circuit has several scales and types of test being powered by a 22.5 V battery.
We found this circuit in the Linear Applications Handbook of the National Semiconductor of 1994....
The CMOS 4046 integrated circuit is seldom used, both due to the difficulty of finding it and the...
We found this circuit in an English publication. The transistor can be BC549, and the power supply...