We found this circuit in a 1965 Electronic Design. Transistors are still common but admit equivalents for some of them. The circuit drains a current of only 4 mA.
The S-meter is signal strength meter, coupled to telecommunications receivers to indicate the...
June 2016 - It can be purchased from Mouser Electronics the TAS5720x the evaluation module from...
The deviation of characteristics of this circuit normally referred to the temperature is very low....