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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100 MHz Optical Receiver (CB15957E)
This circuit was suggested by Motorola in its manual of components for optoelectronics (1987)...
Sweep Generator (CB3880E)
This sweep oscillator was found in 1980s American documentation and can be assembled with current...
Low Pass Filter LM102 (CB15476E)
In the figure we have a low-pass filter, with a cutoff frequency of 10 kHz, also suggested by...