I searched everywhere, no letf in whole country 
I tryed bc 639, but R0 blown and fets too.. ( I put legs right, no mistake- have change legs because ztx 450 and bc 639 has diferent)
any help? what n chanel transistor I should use? I was thinking that any npn device but now I see its wrong.
24 mosfet are already dead, as a 12 RO (o,47om)
I tryed bc 639, but R0 blown and fets too.. ( I put legs right, no mistake- have change legs because ztx 450 and bc 639 has diferent)
any help? what n chanel transistor I should use? I was thinking that any npn device but now I see its wrong.
24 mosfet are already dead, as a 12 RO (o,47om)
My Zen V4 runs with BC550 without problem.
You have another problem.
Try to run the amp with less bias first / make R0 not to small first. Try 1A or so.
Double check all pins and connections of Transistors and FETs.
Make good connection short wires to power supply.
If does not work: Test the regulator alone first, the test the amp with the aleph current source modulation resistor disconnected.
You have another problem.
Try to run the amp with less bias first / make R0 not to small first. Try 1A or so.
Double check all pins and connections of Transistors and FETs.
Make good connection short wires to power supply.
If does not work: Test the regulator alone first, the test the amp with the aleph current source modulation resistor disconnected.
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