risingjay Posted February 25, 2007 Share Posted February 25, 2007 I installed the upgrade board in one of my Dynaco MK III's last night and got no sound. I have narraowed it down to the #11 eyelet. I don't understand how to connect this one up. The outer shell of the input jack is connected to this, but what else should be connected to this outlet? The directions aren't clear enough for me. Please note that I have the Curcio Aduio power supplies installed and these amps, so I am not useing the original Quad cap. The directions say to use the wire from one of the outer shell ugs on the Can cap, but I have eliminated this wire. It also says you can use the center tap (red/yellow) of the power transformer for connection on eyelet #11, but this is already hooked up to lug terminal #2. Please Please Please help me. Thanks, Jay Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 Thanks for the response Mark, So by what you are saying, can I run the a wire going from the ground of my Power supply to the eyelet? It would then be grounded, right? Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 I suck. Now I have a new problem. I have quadruple checked all my connections which are correct, my output and rectifier tubes are running but the pc board tubes aren't lit. Any suggestions? Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 The only thing I can find is the 5th pin on both sockets aren't connected to anything. I did put a jumper on the board, but this was done beacause I don't have the dual biasing option. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 One half on both pc sockets see voltage and are glowing somewhat, but the other side there is nothing. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 When I power up the amp, half the tube glows normally, the other side of the same tube dosen't. This is on both tubes. It's like only half the tube works. This I know shouldn't be happening. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 The 12AU7's. I'm not good at this, but on my output tubes (6550's) I see 2 round circles at the top that glow orange. On the 12AU7's, only glows on each tube. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 The 12AU7's. I'm not good at this, but on my output tubes (6550's) I see 2 round circles at the top that glow orange. On the 12AU7's, only glows on each tube. Ignore this comment, I was looking at the rectifier. I have no idea what is going on. I just want some tunes. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 Has anyone else here on the forum installed these driver boards? Quote Link to comment Share on other sites More sharing options...
Marvel Posted February 25, 2007 Share Posted February 25, 2007 Jay, Is this the Poseidon Board from Triode? Bruce Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 25, 2007 Share Posted February 25, 2007 Frank, You have to place a jumpers on the boards at two places. On the board near both tubes you will see three soldering eyelets.A jumper must be connected from the hole connected to hole 6 to the center eyelet connected to pin 5 on the tube on the tube side of the board you can see (with glasses LOL) holes marked 6V and 12V.( I used a cut off lead from one of the resistors) If you are still confused, I'll get my camera back from my wife tomorrow and post pics. Rick Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 No, I don't believe they are the Posiden boards unless the only upgrade boards they have are posiden. Here is the ones I bought: http://www.triodeelectronics.com/mk3boardspartssprague.html Thank you Rick! I have been eyeballing those dang blasted holes for a few hours now. I will solder now and report back. Thanks again. Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 Well, I soldered up the 6V to the 5 pin of both tube sockets and I am still getting no sound. What did I F*** up? This is really starting to get to me. Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 25, 2007 Share Posted February 25, 2007 The documentation is sorely lacking in this department! Mine are jumped the other way, 12V and worked. Rick Quote Link to comment Share on other sites More sharing options...
risingjay Posted February 25, 2007 Author Share Posted February 25, 2007 Rick, If you could take pics for me that would be awesome! I think it would clear up a lot of confussion I have. Thanks, Jay Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 25, 2007 Share Posted February 25, 2007 I'll get some up tomorrow. Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 26, 2007 Share Posted February 26, 2007 Picture #1 (Large file) Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 26, 2007 Share Posted February 26, 2007 Picture#2 Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 26, 2007 Share Posted February 26, 2007 #3 Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 26, 2007 Share Posted February 26, 2007 #4 Quote Link to comment Share on other sites More sharing options...
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