This circuit for light modulated in frequency (FM) was found in documentation of the 90s. SUS is uncommon today, but transistors admit equivalents.
This circuit is from 2002 documentation, requiring a symmetrical source of 6 to 12 V. The signal...
This circuit is from Linear Technology 2005 documentation. The circuit is based on company...
This power supply that can supply current according to the LEC is suitable for small projects. The LED...