This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent transistors may be used. The gain is 20 dB.
Found in Motorola's 1967 documentation this circuit can use any general-purpose transistor. The signal...
This circuit can be found on this website in similar versions. The power supply is given in...
Found in a 90s Popular Electronics this circuit generates signals from 530 to 1600 kHz for...