Found in General Electric's documentation from 1970, this circuit is indicated for the so-called “Solid State Lamp” (SSL). The LED symbol in the original diagram is inverted.
This circuit can generate time base signals from 5 to 1500 Hz. We find it in a documentation about old neon...
This analog thermometer was obtained from an English documentation. The sensor is a common diode...
The circuit transistors, found in a 1974 documentation, may be the BC548. The circuit is used in...