This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps. The diodes can be general purpose or even 1N4002. The transformer is 6.3 V with 100 mA or more current.
This monostable or one-shot circuit was found in an American publication from the 60's....
This output step with a transistor can be used in experimental radios and intercoms or as a signal...
In the figure we have 3 monostable circuits for triggering without rebounds of CMOS circuits. The...