This circuit from Ferranti was released in 1969. It makes use of the company's transistors that admit current equivalents. The input voltage is 30 mV for total deflection. The band pass is 800 kHz.
The operational amplifiers of this circuit can be replaced with more modern equivalents. The power...
The circuit shown in Figure 3 is used to control voice coil micromotors, such as those used to...
This circuit with TTL output was found in a 1968 EEE. The transistor can be of general use. The...