Temperature interface (CB20543E)

This temperature sensor shield or interface was found in a PC English documentation from 1996.

Operational Amplifiers Symmetric Power Supply 78xx and 79xx (CB15342E)
This source can supply currents up to 1 A. The circuit is from Motorola's 1993 Linear Interface ICs....
Morse Code Practice Oscillator (CB18472E)
We found this phase shift oscillator for audio signals in a 1974 documentation. The amplifier...
Power Oscillator (CB12692E)
This circuit is basically the same configuration as the previous one with a power stage with...