Sir Mile can i use this Protect from AX14 to FH9 Sir thank you so juch sir
Yes
Like this Sir Mile please correct me if im mistake Sir thank you so much sir
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Hey all. Im having some issues with my build, and hoping you guys could offer some advice. First used the dim bulb tsetser and all was good, bulb dimmed a sec after switching on. Then proceeded to bias the amps, but could not bias it. Got between 0 and 1mv turning pot either way trying to bias it. Also getting 18vdc on the output. I would appreciate any advice on this problem please. Thank you
Checked everything again, and all was fine. Still couldnt bias amp and high dc output. Then the smoke came from 220r resistor leading to IRFP250. Please help
Make sure that you have wire the amplifier according with this?
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I am looking at the bias control portion, at 1st post of this thread.
The maximin output current is controlled by BF871, and the current is limited to 1 Vbe / 0.22 Ohm, which is less than 4A. I don't think you can get "+/-50V DC give 150W on 4R load". Maybe I missed something.
The maximin output current is controlled by BF871, and the current is limited to 1 Vbe / 0.22 Ohm, which is less than 4A. I don't think you can get "+/-50V DC give 150W on 4R load". Maybe I missed something.
Nice!
Can you share the pcb pdf or jpeg?
I mean in black&white for home etching.
Hi Thimios, here you have your pcb MM4 for home etching.
Regards
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Sir Mile can i use IRFP240 instead of IRFP250 in NX400 Sir thank you sir
Sir Mile can i use IRFP240 instead of IRFP250 in NX400 Sir thank you sir
Yes
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