We found this circuit in the October 1994 issue of Electronics Now magazine. The circuit uses a now-uncommon 4046 PLL and the gates of a CMOS 4001.
This circuit is from an 80's documentation, making use of PUTs that are not currently common...
This Linear Technology circuit was found in a 1980s documentation. The circuit can swing up to a...
This circuit is from an1966 General Electric documentation. The Triac can be equivalent to 6 A or...