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<blockquote data-quote="620hpcrx" data-source="post: 1925065" data-attributes="member: 551719">Okay so About a month ago my Tsunami GXA1000d blew...it was only a small transitor that was in the signal path. I ordered the part off ebay $2.25 total and it took 3 weeks to get here from Quebec. I soldered it in (first time soldering components) but the joints turned out nearly perfect. I also put some new thermal contact goop (it was actually some non hardening gasket adhesive). Turns out a little got onto the first N-Channel transistor and shorted it. I go install it and right when I put the main fuse back in I look in the trunk and the shit is smoking like no other!!! I take it back apart and find all the N-Channels and fried! So now I need 10 IRF-Z44N transistors which will cost me $13 shipped off Ebay or $25 shipped off PartsExpress. But I have one question...All of the N-Channels should be the same part right? Im not sure because on 4 of them the sinks melted the transistors to where I cannot read the model number. Also I would like any advise from KNOWLEGEABLE members of the board on replacing these. I have read on biasing but I have no clue how as there are no variable resistors which you can adjust. Any feedback is welcome but please keep unneeded comments to yourself. BTW this was a great learning experience <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick out tongue&nbsp; &nbsp; :p" loading="lazy" data-shortname=":p" />Shawn</blockquote>

[QUOTE="620hpcrx, post: 1925065, member: 551719"] Okay so About a month ago my Tsunami GXA1000d blew...it was only a small transitor that was in the signal path. I ordered the part off ebay $2.25 total and it took 3 weeks to get here from Quebec. I soldered it in (first time soldering components) but the joints turned out nearly perfect. I also put some new thermal contact goop (it was actually some non hardening gasket adhesive). Turns out a little got onto the first N-Channel transistor and shorted it. I go install it and right when I put the main fuse back in I look in the trunk and the shit is smoking like no other!!! I take it back apart and find all the N-Channels and fried! So now I need 10 IRF-Z44N transistors which will cost me $13 shipped off Ebay or $25 shipped off PartsExpress. But I have one question...All of the N-Channels should be the same part right? Im not sure because on 4 of them the sinks melted the transistors to where I cannot read the model number. Also I would like any advise from KNOWLEGEABLE members of the board on replacing these. I have read on biasing but I have no clue how as there are no variable resistors which you can adjust. Any feedback is welcome but please keep unneeded comments to yourself. BTW this was a great learning experience :P Shawn [/QUOTE]

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