Thus a signal can be switched on by passing it through a diode in forward bias, and then turned off by putting the diode into reverse bias. A simplified diode switch in the reverse biased Off ...

Energy band diagram of pn junction under forward bias, Continuity equation, Boundary conditions, Ideal diode equation, Long- and short-base diodes, Recombination and generation in the depletion region ...

I used this property to create a very satisfying ‘true’ valve overdrive effect (most other valves do not behave this way, ...