mkel2010 wrote:
Dealing with the hiss has been an ongoing effort, but I think I'm on the right track. I've replaced the input resistors and the 68k resistors on V1 with metal film resistors and the hiss has been reduced by half or a little more at
dissertation writing help. On the Normal channel alone, the amp can be played at full volume without the hiss overwhelming the guitar. On the TMB channel, the hiss also doesn't overwhelm the guitar until the volume or gain are past about 3/4's. All bets are off though when the Boost is engaged. Changing tubes has no effect on the amount of hiss.
I bought a full set of metal film resistors to be able to replace all of the carbon film ones. I'm going to start with the resistors for V1 and V2 areas of the board and see what effect that has before I replace them all.
The 18W would be a better first build. Though Trinity does make their kits pretty easy to build the Triwatt is fairly advanced. The 18W makes a great first build.
I built a sIII using Trinity's chassis, xformers and cab. It is a great amp, it uses a Tone Tubby San Rafeal.
I have played the Triwatt many times, it is a great amp too. Too many amps to build, too little time.