Tech21 Sansamp Bass Driver DI schematic

ejbasses · June 08, 2004, 03:24:30 PM

Ive seen how ell the GT2 is doing her.

Does any one have aschematic of this baby??? PLEASE!!

zener · June 08, 2004, 03:29:37 PM

sensya na pero... madaling araw pa/na ah :wink: tulog uli/na :mrgreen:
(local language)

ejbasses · June 09, 2004, 01:15:52 PM

bumperooney

hehe nice one zener

Please gotta have a schem of one of these things.

calling all bassists out there? has any body even tried taking a peak inside?

niftydog · June 09, 2004, 07:12:52 PM

yeah, I've pulled the back off. surface mount, tiny components, incredibly high density circuit... I have no idea what ICs are used. not the kind of thing I'd try DIYing...

cd · June 09, 2004, 09:57:45 PM

Is the circuit not potted (i.e. under a huge black plastic square)? I was under the impression it was. If not, I might have to pick one up to reverse engineer.

niftydog · June 09, 2004, 10:51:52 PM

well... haven't looked on the underside of the board, the pot knobs are glued on and I didn't want to go to that extent. But from memory it's a dual layer board with SMD on both sides. Parts of it may be potted. I'll have another look if you like... but I think you're talking fairly intense project here!

cd · June 09, 2004, 11:23:37 PM

No need to go to any trouble, I was mostly thinking out loud. If a schematic is going to surface, it's not going to be through me - my rule of thumb is that if it's going to be more expensive to clone than to buy, forget it (used ones go for $100-125).

moosapotamus · June 10, 2004, 02:35:12 PM

SABDDI

Yeah, I wouldn't expect a scheme of this one to be surfacing any time soon.

~ Charlie

ejbasses · June 11, 2004, 12:29:50 AM

that isnt too DIY friendly is it?
hehe

I guess ill just have to save up for one. Ill build the GT2 instead.

J. Luja · June 11, 2004, 02:19:13 AM

QuoteYeah, I wouldn't expect a scheme of this one to be surfacing any time soon.

Well, not unless I can get my hands on one. It does look more simple than the gt2, but I don't know anyone that has one that I could borrow.

-Jeremy

Fp-www.Tonepad.com · June 11, 2004, 06:42:08 AM

If anyone can pull this one off it's J Luja!

I'll be waiting for the schem to make the layout

Fp

cd · June 11, 2004, 10:56:13 AM

How do you get around the block of epoxy?

casey · June 11, 2004, 12:05:13 PM

on the bottom left hand corner of the circuit board, it looks as if
it has a couple of bad solder joints that needs to be fixed....

try this link out, it's not the sansamp, but it might be better:

http://www.albertkreuzer.com/pics/el/pre/schem/preamp_sch21.gif

J. Luja · June 11, 2004, 01:22:37 PM

QuoteHow do you get around the block of epoxy?

soldering iron at 800 degrees with a chisel tip I don't mind getting ruined
dental picks
scalpel
lots of ventilation

the board looks like this when I'm done
http://www.axiomdrift.com/schematics/DD%20board.jpg

ejbasses · June 14, 2004, 04:53:28 AM

Some body get J. Luja an SABDDI quick!!!!!

well J. Luja i guess my fate is in your skillfull hands.

mikeb · June 14, 2004, 09:03:56 AM

I'd be pleased to tryout any pcb layouts (or just build it from a schematic); this bass player can be 'cheap' as much as any of you guitarists ....

Mike

Ansil · August 04, 2004, 10:56:07 AM

Quote from: J. Luja
QuoteYeah, I wouldn't expect a scheme of this one to be surfacing any time soon.

Well, not unless I can get my hands on one. It does look more simple than the gt2, but I don't know anyone that has one that I could borrow.

-Jeremy

i have someone who is willing to let you look at theres and no epoxy on the back of it either.. haven't seen the front completely but from what i have seen it is not epoxied. email me. or reply to the pm i sent ya.

News:

Tech21 Sansamp Bass Driver DI schematic

mikeb

Ansil