Found in an ancient American documentation, this circuit can generate signals up to 40 MHz for a Z80, microcontroller widely used at the time. The circuit must be powered with 5 V and also serves as a shield.
This is a traditional complementary-output transistor amplifier sourcing 2 to 4 watts to a 4 ohm...
This bass booster preamp is from an English publication (1966). We can mount it with more modern...
This circuit utilizes a precision operational amplifier that can be replaced with an equivalent. The...