Found in American documentation from the 1990s, this circuit uses coils with multiple outlets to get the best reception, the diode is a general-purpose crystal diode.
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...