We found this micro amplifier in a technical documentation from National Semiconductor. The circuit can be used on an experimental phone, being powered even by alternative power sources.
Indicated by Popular Electronics to be used with a car headlight, this circuit can also have...
This circuit was obtained from a Popular Electronics. The component is a UJT. The circuit has an...
This circuit is from the 1974 Motorola Unijunction Trigger Circuits for Gated Thyristor. The triac...