TRANSISTOR MUSEUM™ Historic Transistor Photo Gallery Photo Essay – Shockley 4 Layer Diodes
Shockley “Transistor Diode” Demonstrator Kit	Basic Shockley Diode Oscillator Circuit
Photo Essay Commentary The basic Shockley diode oscillator circuit is shown above right. This is a sawtooth oscillator, which refers to the shape of the waveform generated by this circuit. Only three components are needed, in addition to diode, for this circuit. A Demonstrator Kit for the Shockley Diode (also known as the 4 layer diode, the pnpn diode or the transistor diode) was constructed at the Transistor Museum, using the basic sawtooth circuit. A photo of the completed kit is shown above. If proper values are used for the components, the circuit will oscillate in the audio range and produce a loud tone in an attached earphone. Go To PhotoGallery Shockley Diodes Page 5
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