Ladder Generator (CB9104E)

Found in General Electric documentation from the 1970s, this circuit generates a staircase signal.

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Variable astable 4093 (CB21127E)
This circuit was found in a Popular Electronics from the 90s. The circuit has 4 frequency ranges...
Triac simple contactor (CB9273E)
This circuit for controlling AC loads in the power grid was found in a 1967 Electronics World. The load...
Simple Hybrid Switching Power Supply (CB26022E)
This hybrid power supply circuit was found in the August 1997 issue of Electronics Now magazine. The...