Wednesday, November 7, 2012

Switching Power Supply 2500 W for PA Project

My first Switching Power supply AC to DC Converter Project.
PCB and schematic from Link.



Power Output +- 71 V DC

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Thursday, October 18, 2012

TDA7294 Power Amp 100w chip amp DIY

Schematic for TDA7294
Power chip amp Project
Datasheet for TDA7294 you can search from www.alldatasheet.com
Print PCB layout by laser printer to paper and ironing to PCB


finishing PCB  ready to drill.
Back of PCB  place resistor 22k between pin 2 and 14

DIY B1 Firstwatt Buffer Preamp Clone


 

12 V AC Adaptor

 
Power Amp TDA 7294 for test.

Power Supply for TDA7294


 With Soken low cost speaker.