Short pulses can be found in this 90's EDN circuit. The load is 50 ohms and the transistors are from that time.
Found in a 1967 American publication, this circuit with feedback for two transistors has a gain of...
This circuit was found in the Spanish magazine No longer in existence, Mundo Electrónico, in a...
This circuit uses transistors from the time it was published but can be mounted with current...