This 6C5 tube circuit was found in a modern tube design manual. The circuit applies to other equivalent triodes.
This is the simulation of a Ultrasound Receiver using the 741 IC, an operational amplifier....
This circuit was found in a 1999 British magazine (ETI). It is a device that receives the signal...
This circuit provides a linear attenuation of a signal up to 100 dB. The circuit operates with...