This is a 1960s amplifier setup found in a period publication. The circuit uses a special driver transformer that inverts the phases of the signal to excite the output transistors.
Static charges in objects Dan be detected by this sensitive electroscope. The meter indicates when the...
This simple field strength meter is from a transistor book from the 60's. The transistor is made...
The current drained by this circuit, from a 1976 documentation, is 3 mA and the cut-off frequency is...