E-design
Advanced Member level 5
Most people know the normal two transistor astable-multivibrator circuits with caps between opposite base and collector. Most text books cover them. There is also another form of this using a capacitor coupled-emitter configuration. This is rarely seen in text books. Below is an extract from the book "Pulse and Digital Circuits" with some timing equations.
If you add an output stage and a variable pot, you can get a nice rail-to-rail output square wave with some duty cycle adjustment.
If you add an output stage and a variable pot, you can get a nice rail-to-rail output square wave with some duty cycle adjustment.
