Transistor gain meter (CB20522E)

This circuit was found in a publication in the 1950s, mainly applying to germanium transistors of the time.

Impedance Ratio for Some Common Values of Turns Ratios (IP097E )
Turns Ratio Between Windings Impedance Ratios 100:1 10 000:1 99:1 9 801:1 98:1 9 604:1 97:1 9...
Light Meter LM334 (CB1342E )
This light meter can be mounted with equivalent integrated circuit. The power is made by a single...
3KSMC21AH 3000W Transient Suppressor
3KSMC21AH 3000W Transient Suppressor from Taiwan semiconductor Taiwan Semiconductor is making...