Found in a 90s R-E Experimenters Handbook, this circuit amplifies signals from 100 Hz to 3 MHz. The circuit has a gain of approximately 30 dB. Bipolar transistors are general-purpose types.
What differentiates this circuit from the many versions with the 4017, presented in our...
This is another possible version of a negative voltage generator using a 555 integrated circuit. The...
This circuit was found in Maxim's documentation from the 90's. The circuit provides 12 V x 120 mA....