Found in the April 1995 issue of Electronics Now magazine, this circuit provides an output voltage that is three times the supply voltage. The current is very low.
This circuit generates a sinusoidal signal with only -80 dB THD. The circuit was found in a 90's...
This circuit is from a 1980s Motorola documentation. The circuit can be set to fire from 60 to 120...
If interference occurs in several receivers, much more interesting than placing a filter on each...