Re: Went Dead
With the symptoms described there is a microscopic chance it’s something other than a shorted MOSFET. You might want to consider replacing both final transistors. Whatever killed the one that is shorted may have damaged the other. Make sure to buy several spares, this may not be the first time you need to replace them.toggle quoted messageShow quoted text
I’d strongly suggest putting a fuse inline, this may protect the final transistors from future damage and also protect your power source from overload if it does happen again.
Make sure you replace the thermal grease between the transistors and heatsink. Don’t forget to set the bias adjustment for the new transistor (you should probably verify the bias adjustment for the other.
Below are some reputable sources for replacement IRF510s:
On Jun 15, 2018, at 12:24 PM, Bill Watkins <kf7yxs@...> wrote: