This source allows the supply of laser diodes with voltages above 11 V. The circuit is from French documentation and equivalent components can be used.
An oscillator that uses two gates is not suitable for critical applications, as it tends to pick...
The integrated circuit used in this amplifier is not very common today. This amplifier was found in...
This 1992 circuit uses a common LM139 comparator today, but it can be built with equivalent...