Product Detector MC1556G (CB14562E)

The circuit presented requires a simple 12 V supply and was suggested by Motorola in its 1990 Linear Databook.

Preamplifier for 30 MHz (CB10057E)
This low noise preamplifier has a gain of 19 dB in the 30 MHz band. The circuit is from the 80s....
Optical direction discriminator (CB8079E)
Found in American documentation from the 90s, this configuration detects the direction of rotation...
Linear Ramp Generator (CB11227E)
This circuit generates a 5.3 kHz linear ramp with the indicated components. The 7555 is the CMOS...