Plasma Lamp with Triac (CB26134E)

We found this circuit in a Radio Electronics Experimenter from 1990. The circuit uses a common incandescent bulb and a car ignition coil.

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Photodiode Amplifier (CB13300E)
This circuit is from a technical documentation from Motorola from the 70s, and for this reason it is...
Remote control tester circuits (CB7821E)
In the figure we have a transmitter and a simple remote-control receiver for tests found in a 90s...
Electronic Control For Autorama (CB16298E)
This control, from a 1982 documentation, uses an integrated circuit and a Darlington transistor, as shown...