Friday, April 19, 2019

Super OCL Power Amplifier 500W DEF

Super OCL power amplifier with double emitter follower on final transistor it can deliver power output more stability, and this version I have added capacitor decoupling on the final transistor. This amplifier is a wide power supply range minimum power supply voltage 25VDC to 90VDC symmetrical power supply, and minimum current 5Ampere. Output maximum of this amp up to 500W.

Below the schematic and PCB Layout design, you can download this project and PCB Gerber file at the end of the post.
Super OCL Power Amplifier 500W DEF

The final transistor can be using: 2SC5200/2SA1943, NJW0302/NJW0281G, MJL21193/MJL21194, C6011, 2151
Driver transistor can be using: B507/D313, C5171/A1930, MJE15032/MJE15033, C4793/A1837

The final transistor is upgradable for more high power output

Tested Amplifier video:



  1. no lo puedo descargar lo hubieras subido normal como los otros que has subido

  2. no lo puedo descargar ubieras subido como los otros mas facil

  3. I could see the test and sounds good ! i have a question, what kind of class is this amplificator ?

  4. What is the output stage bias current?


Dont use outgoing links!