This circuit was found in the November 1966 issue of Electronics Now magazine. It uses an LDR as a sensor and has a Bargraph scale with the well-known LM3914.
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...
March 2017 - Microchip's new 8-bit PIC16F15354 microcontrollers can now be obtained from Mouser...
Found in a 1980s telecommunications documentation, this balanced modulator circuit uses...