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.
This circuit was obtained in Teledyne documentation from the 70s. The converter component is uncommon...
In the figure we have the way to use the comparator LM339 and others of the same series with the...
We found this circuit in an old documentation, but it can be easily assembled, as it is based on...