High impedance stage (CB20564E)

This high input impedance amplifier stage was found in a 1963 documentation. The transistor germanium of the time.

Adapter for transistor test using a multimeter (CB3925E)
We found this adapter in a 1970s American documentation on instrumentation. It is suitable for analog...
LM5176 Buck Boost Synchronous Controller - Texas Instruments
The Texas Instruments LM5178 Buck-boost controller is capable of operating in the 4.2 to 55 V (60...
Window Comparator (CB25732E)
The circuit shown in the figure is recommended for applications where a visual indication is...