Recent content by BlackBoxy

tube problem

Hi, My Rythm2 channel has been moded into a vox overdrive like channel , when i roll back gain pot i got a extended kind of rythm 1 too nice tone from your amp ..

well, new product aren't better reliable tone tube as it was at tube's age, new sensor best are tung sol and maybe mullard made by russian sovtek factory the rest is awfull! better get old used tubes

Slt, tu peux attaquer un fuzz au germanium avec ? est il adaptable à des impédances différentes ? thx

http://forum.grailtone.com/viewtopic.php?f=24&t=36840&start=60

Hi, because paralel fx loop bring only 50% wet, you have to mod you fx loop to serial!

Mesa capacitors "bmi" made in the US are by far tonaly the best one, it doesn't change the Mesa tone, as could F&t, atom or others general purpose cheap ones! contact them

leads does , and sometime brain haha :lol:

as the new pics show, it seems they aren't rust at all! next step, get a look at treble pot, and solders! good luck

tung sol long plate reissue tubes are really nice and powerfull , lets try them ! ask balanced tubes good luck

just change those oxydised ceramics caps with something like polysterene caps and the spank will get back

yes and no fx loop signal too

hi, no tube assigned to FX loop

coupling here sprague 1uf not a 100nf, not filtering cap ! just talking about facts, and what i find, not shoulda woulda coulda dreams ! even the IVb has it http://www.amparchives.com/Amp%20Archives/Mesa%20Engineering/Schematics/Mesa%20Boogie%20Mark%20IVB%20Schematics.pdf

would get a look at bias current and if heater current is steady, heaters plays like switch on tube , any variation here could mess on output !