This small transistor amplifier was found in an ancient American documentation. Transistors can be replaced by modern equivalents. The gain is 3 dB from 15 to 130 kHz.
![](/images/stories/cir/214312432023_141443_0001.gif)
This small transistor amplifier was found in an ancient American documentation. Transistors can be replaced by modern equivalents. The gain is 3 dB from 15 to 130 kHz.