Bass Control (CB21294E)

This circuit with losses of 20 dB at 350 Hz was found in older documentation, but it applies to modern preamp and amplifier circuits.

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Ramp Generator (CB8935E)
Found in a 1970s American documentation, this circuit uses components from the era that can...
3 Channel Rhythmic Light (CB19155E)
This light effect was found in a European circuit manual from the 90s. The triacs can be of the...
Reflex Test (CB16554E)
This circuit was found in an 1888 publication. However, since it uses common components, it can...