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modding my head

PostPosted: Thu Aug 20, 2009 4:30 am
by htsamurai
im rockin a crate BV60
its really bright
like seriously i gotta keep treble at about 12 and lows/mids maxxed

how can i go about fixing this, scruffie im talkin to you (wiz said so :lol:)
im pretty sure i should just change some caps and reisistors to higher values but i wanna be sure yo, so talk to me my friendz

Re: modding my head

PostPosted: Thu Aug 20, 2009 4:44 am
by Scruffie
Hehe, I fear a reputation for me has grown... but I shall give it a shot,

Is that the 4 or 5 tube version? I'l be stabbing in the dark without the schematic but quick fix... try decreasing the size of the treble pot & if you can work out which it is increase the tone stacks treble cap.

And doesn't that amp have an bright switch on it...? if it does find it and turn it off lol,

It is 10 in the morning here and I woke up at 10 yesterday so might have to wait till i've had a little nap to go over the schematic but i'm sure we can get something in there sorted.

*Insert product placement* Or get an Dark Boost! lol.

Re: modding my head

PostPosted: Thu Aug 20, 2009 5:11 am
by Scruffie
Here ya go... I did the work for you in my sleep deprived state
http://www.schematicheaven.com/newamps/ ... oo_60w.pdf

Looks to me to be C2 & C14 220pF... Try something higher till you get what you like :thumb:

Re: modding my head

PostPosted: Thu Aug 20, 2009 9:27 am
by metalmariachi
Increasing those two should work. In addition you could also change c36 and c37 to .1 uf, which will darken the overall sound.

MM.

Re: modding my head

PostPosted: Thu Aug 20, 2009 2:55 pm
by Derelict78
Wow you cats are Rad!
I have a behringer b4500 is there a mod I can do to make it sound good? :lol:

Re: modding my head

PostPosted: Thu Aug 20, 2009 3:08 pm
by Scruffie
Careful you don't get B.U.M.S (Blind urge to mod syndrome)

If you can find a schematic (or the schematic for what it is based off)... and have an idea of what you want it to sound like can have a look over it, what's wrong with it? Sometimes though... it's just better to buy something new (unless your me who will go no end to avoid paying for something even if it ends up being more hassle and cash)

Re: modding my head

PostPosted: Thu Aug 20, 2009 3:13 pm
by Derelict78
sorry that was just a joke my head does its job. Really though I was impressed by your reply! For better tone I just need to buy a better head. mmmmm dwarfcraft tube head.

Re: modding my head

PostPosted: Thu Aug 20, 2009 3:19 pm
by Scruffie
Hehe I did question it but I thought i'd run with it, stupid tiredness...
The dwarfcraft would be nice if it ever comes to fruition, fictional (not implying it doesn't exist) amps never sound quite as good as the finished product.

Re: modding my head

PostPosted: Thu Aug 20, 2009 3:37 pm
by htsamurai
THANKS MM AND SCRUFF!!
yall never let me down

ill get to work...probably tomorrow lol

Re: modding my head

PostPosted: Thu Aug 20, 2009 4:17 pm
by Scruffie
Be Careful of those big caps man! (as i'm sure you know but better to be safe than sorry) and don't forget to take your watch off... and wear trainers... I wont even bother to say unplug it...
And although difficult, while working try and keep your arm behind your back, may save your life.

Re: modding my head

PostPosted: Thu Aug 20, 2009 8:00 pm
by htsamurai
arm behind back?
O.o
no idea what you mean, you saying that so one doesn't burn theyselvez?

but yeah im careful when soldering, this will be fun. id do it tonight but i have a stupid thing to play tonight

Re: modding my head

PostPosted: Thu Aug 20, 2009 8:16 pm
by Scruffie
No the arm behind your back will prevent an cap discharging accross your heart if you accidentaly touch an Large cap while soldering the rest as they hold a charge of course and while soldering you could make an mistake, obviously at some points you will need 2 hands, but when you can it's good practice.

Re: modding my head

PostPosted: Thu Aug 20, 2009 9:22 pm
by Derelict78
Scruffie wrote: fictional (not implying it doesn't exist) amps never sound quite as good as the finished product.

I would have said SUNN 300T but its out of my price range and Aen has talked about a <$1000 price tag.

Re: modding my head

PostPosted: Thu Aug 20, 2009 9:29 pm
by Scruffie
Derelict78 wrote:
Scruffie wrote: fictional (not implying it doesn't exist) amps never sound quite as good as the finished product.

I would have said SUNN 300T but its out of my price range and Aen has talked about a <$1000 price tag.


Ah fair, to be honest, i'm not really an amp man, I can fix them... I can see the circuit, but I dunno much about them, infact I don't even have tubes... This is all monetary based though, I shall soon be buying my first amp kit and learning itss working, I mainly have experience in terrible amps and trying to upgrade them & miniature 386 Based amps I mess with on my breadboard and use for circuit testing... Just for some background

But if it's under $1000 and it's nice and it does become available sweet, Sunn's I have only ever played one and it was nice though... think i'm gunna go from someone I know and start work on sub miniature tube amps once i've built my first full tube.

Re: modding my head

PostPosted: Fri Aug 21, 2009 8:56 am
by metalmariachi
I drain the filter caps, and then jumper the first one to ground, ‘cause some times you do need two hands and you can accidentally touch things. You just have to remember to remove the jumper before plugging it in.

Tube amps make sense to me. Some stomp boxes (phasers, chorus) and SS amps intimidate me.
And I can’t figure out why Music Man and Marshal (JCM 900) used opamps for reverb when a single tube would have worked better.

Scruffy, are you going with a kit or working from a schematic for your first tuber?
And what are you thinking of building?

MM