I found tis circuit in na old documentation from 1958. The circuit uses germanium transistor availble that time and hard to obtain today. The circuit is indicated for phono applications using variable reluctance transducer.
The circuit shown in figure 1 was suggested by Maxim (www.maxim-ic.com) based on the DS2786B...
This circuit generates a signal in the form of a ladder, with voltages rising in steps. The base...
This trigger uses two transistors having been found in ancient French documentation. The circuit is...