Medium impedance stage (CB20563E)

We found this circuit in an English publication from 1963. The circuit uses germanium transistors of the time.

Liquid Level Detector (CB1309E)
This circuit uses a triac to detect the level of a reservoir, and a sensitive SCR connected to the...
Two Diode Balanced Modulator (CB4233E)
This is yet another balanced modulator circuit for SSB transmission. This two-diode circuit was...
ADSxx53 Dual SAR ADC Converters (COM017E)
June 2016 - Mouser already have to deliver the new analog-to-digital converters SAR ADSxx53 of...