This circuit is from the 70s. The integrated circuit used is not common today and the supply is made with a voltage found in televisions of the time, where it was used.
We found this circuit in a 1975 publication. The power supply must be symmetrical, but other...
In the original publication of the 90s a 556 consisting of a double 555 is suggested. The circuit...
Mean Well 480W HVG-480 LED drivers can be purchased from Mouser Electronics. These drivers operate with...