This circuit is from 1968 American medical documentation. The circuit generates pulses of excitation that are applied to the patient's heart. The components are from the era. The pulses are 1 ms.
The 74123 TTL integrated circuit consists of a monostable that can be configured to generate...
This VCO or Voltage Controlled Oscillator was found in a Popular Electronics from 1991 but can be...
In the figure we have the power supply for the 8 W amplifier in the previous circuit. The circuit...