Three-phase power supply (CB23680E)

This circuit was found in Radio Electronics magazine from July 1960. The components used are transistors of the time.

ADSxx53 Dual SAR ADC Converters (COM017E)
June 2016 - Mouser already have to deliver the new analog-to-digital converters SAR ADSxx53 of...
Listening Monitor and 27 MHz Field Meter (CB19602E)
This circuit is from a documentation from the 70s. The transistors are types of germanium of the...
Timed Alarm (CB6423E)
We found this circuit in a 90's Popular Electronics. The circuit produces a loud sound if S2 is...