This 1967 Ferranti circuit uses company components. These transistors can be replaced by modern equivalents. The sensor is an LDR.
The integrated circuits used in this oscillator are not very common today, as we obtained it in...
This circuit is suitable for applications in medical, research and industrial equipment. The...
This amplifier with the LM1098 and LM101 by Motorola from a 1990 manual can be designed with more...