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.
It can be obtained from Mouser Electronics the new MAX14871 Maxim consisting of a full-wave...
This simple medium wave receiver with a transistor can employ any type of general-purpose...
This circuit generates sequence of pulses in order and times determined by the capacitors in pins...