The circuit shown has a voltage gain of 500 times and can use equivalent FETs like the BF245. The circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook.
This configuration for switching signals uses only common general-purpose diodes such as 1N4148. The...
This amplifier with complementary symmetry output and good sound quality was found in...
Mean Well 480W HVG-480 LED drivers can be purchased from Mouser Electronics. These drivers operate with...