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uBitx VER 4 BRD AND Compornents


 

What are the components Q942 and Q952 for? These were missing from my factory assembled board. The main problem I am having is each time I power up the receive works ok etc, but the second I hit the cw or ptt key the finals blow, drain shows grounded.. Three times in a row now, first time i thought there might have been a shorted wire when mounting board, no and blew a second time, check for shorted land etc. and the land from power in to the finals was burnt into, fixed with small jumper, repalce finals for third time and checked for shorts etc. best i can. made a temp fuse by using a one strand of small copper wire to postive connection and it burnt almost on contact, tried again and the receicer works as before? but also just as before the finals went, saw what i thought was la little some from maybe a bias pot not sure, just pulled the finals again.? Just about to give up on the project but maybe some of you could give me some thoughts , advice , help anything at this point.... :)

chuck

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