Search found 229 matches

by BlackBoxy
Sun Aug 28, 2016 2:24 am
Forum: Vintage Amps (Before 1991)
Topic: Mark III: reverb decreases headroom
Replies: 6
Views: 2364

Re: Mark III: reverb decreases headroom

tube problem
by BlackBoxy
Fri Aug 05, 2016 4:29 am
Forum: Vintage Amps (Before 1991)
Topic: Mark IV rhythm 2 channel blues
Replies: 5
Views: 2109

Re: Mark IV rhythm 2 channel blues

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 ..
by BlackBoxy
Mon Jul 11, 2016 2:04 am
Forum: Mark V
Topic: what tubes are being used by Mesa now?
Replies: 10
Views: 1409

Re: what tubes are being used by Mesa now?

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
by BlackBoxy
Mon May 02, 2016 3:08 am
Forum: Mark Series
Topic: MKIIA-LATOR
Replies: 9
Views: 3199

Re: MKIIA-LATOR

Slt,

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

thx
by BlackBoxy
Mon Mar 28, 2016 7:32 am
Forum: Vintage Amps (Before 1991)
Topic: Problem: Using a DC-3 as a Power Amp - Volume Drop
Replies: 3
Views: 988

Re: Problem: Using a DC-3 as a Power Amp - Volume Drop

Hi,

because paralel fx loop bring only 50% wet, you have to mod you fx loop to serial!
by BlackBoxy
Wed Mar 23, 2016 11:40 am
Forum: Mark Series
Topic: Cap Job Mark ll B
Replies: 3
Views: 1012

Re: Cap Job Mark ll B

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
by BlackBoxy
Mon Mar 21, 2016 9:38 am
Forum: Mark Series
Topic: Mark IIB Tonestack
Replies: 12
Views: 2545

Re: Mark IIB Tonestack

stokes wrote:Ceramic doesnt rust
leads does , and sometime brain haha :lol:
by BlackBoxy
Wed Mar 16, 2016 2:16 am
Forum: Mark Series
Topic: Mark IIB Tonestack
Replies: 12
Views: 2545

Re: Mark IIB Tonestack

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
by BlackBoxy
Mon Mar 14, 2016 7:58 am
Forum: Mark V
Topic: Preamp tubes question
Replies: 9
Views: 981

Re: Preamp tubes question

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

good luck
by BlackBoxy
Mon Mar 14, 2016 7:53 am
Forum: Mark Series
Topic: Mark IIB Tonestack
Replies: 12
Views: 2545

Re: Mark IIB Tonestack

just change those oxydised ceramics caps with something like polysterene caps

and the spank will get back

Image
by BlackBoxy
Fri Mar 11, 2016 11:47 am
Forum: Vintage Amps (Before 1991)
Topic: [Mark IV] FX loop died on me right before starting a gig!!
Replies: 11
Views: 2908

Re: [Mark IV] FX loop died on me right before starting a gig

godisme wrote:It does say in the manual that V2B is responsible for the FX Return. Will try to replace it first before I give it to a tech. Will let you know soon if that worked.
yes and no fx loop signal too
by BlackBoxy
Mon Feb 29, 2016 11:57 am
Forum: Mark Series
Topic: Mark IV C411 mod
Replies: 5
Views: 1359

Re: Mark IV C411 mod

Okay,like I said it could be a typo on my schem,But its still an electro,connected reverse to a neg voltage.Why do you suppose some engineer designed it with an electro?Could that be a typo?Perhaps they should have consulted you. coupling here sprague 1uf not a 100nf, not filtering cap ! just talki...
by BlackBoxy
Mon Feb 29, 2016 6:37 am
Forum: Mark Series
Topic: Mark III blue stripe strange noise. Help, please...
Replies: 3
Views: 1385

Re: Mark III blue stripe strange noise. Help, please...

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 !