Completed assembly of my amp project today and started testing to come across a problem during start up.
The amp starts and runs beautifully when connected to the series board with a 100W bulb
But when connected to the mains directly usually one on phase or rarely both fuses blow with the inrush current. Good thing I bought a box of a hundred 4A fuses!
The transformer is 45-0-45V 8A secondary supplying two 10,000 UF capacitors
Can anyone help me with a PDF of a soft starter PCB that I can etch and make or a resource where I can buy one for a 400 RMS amp?
Thanks
The amp starts and runs beautifully when connected to the series board with a 100W bulb
But when connected to the mains directly usually one on phase or rarely both fuses blow with the inrush current. Good thing I bought a box of a hundred 4A fuses!
The transformer is 45-0-45V 8A secondary supplying two 10,000 UF capacitors
Can anyone help me with a PDF of a soft starter PCB that I can etch and make or a resource where I can buy one for a 400 RMS amp?
Thanks