General Electric suggests this circuit in an 80's documentation. The circuit makes use of PUTs that are not common components today. Note the timing components that may change.
This circuit came out in a 1983 English magazine, but it can be easily assembled today, as the...
This configuration appears elsewhere on this site. We obtained it from a 90s Radio Electronics, based...
Analog Devices suggests this circuit in documentation from the 1990s. The circuit is for 75-ohm...