This circuit from a June 1957 Radio Electgronics is for oscilloscopes of the time with a maximum frequency of a few megahertz. The circuit is battery powered.
This high-speed circuit was found in 1980s Linear Technology documentation. The circuit makes use...
The transistors of this amplifier for 8-200 headphones may be the BC548 or equivalent to replace...
The frequency of this pulser depends on the capacitor and the characteristics of the relay. The...