2254C build/support thread

[jandoste]

MMMM...Thank YOU for patience and carefully checking the resistors
As you see, I did nothing. Now, to com_threshold switch?

Thanks Igor for the support !
Make up is working now ! trshld had  bad lorlin I changed the lorlin and trshld works too
Great ! I am happy ))

 

[Igor]

Well, this makes me happy too
Pass the test procedure - even if already done - just to be at save point, again, tell us about sound, enjoy!
This week, can dedicate more time to support threads etc, let's move to fix your MixBuzz1?

 

[jandoste]

Well, this makes me happy too
Pass the test procedure - even if already done - just to be at save point, again, tell us about sound, enjoy!
This week, can dedicate more time to support threads etc, let's move to fix your MixBuzz1?

Thanks again !
I'm ready to go
Cheers,

PS : I'll post some new 2254Cs picture

 

[Igor]

So.... I checked, notifications on MixBuzz1 build thread are On, when you write here, I will know it
(Sorry for OT)

Guys, how's your 2254C build progress going on? Now have more time to forum stuff, so...use it!

 

[jandoste]

So.... I checked, notifications on MixBuzz1 build thread are On, when you write here, I will know it
(Sorry for OT)

Guys, how's your 2254C build progress going on? Now have more time to forum stuff, so...use it!

I changed the Vu meters and knobs
it works and love it ! Thanks Mr Igor

 

[Igor]

Hurray!!!!!

 

[haima]

Looking great Jandoste!

I wish mine looked like that - I've been using it for almost a year with no case at all, just screwed onto a piece of wood! hahha  I'll have to post a picture ;D

Can't take it out of the studio, even to put it in a case - it sounds too good.

I've used my 2254c on a bunch of mixes, found it really useful so far. My favourite DIY compressor. A few tracks i've used it on should be released in the near future - I'll try to post some links!

I actually just delivered the a final mix tonight - I was using it on my INST bus (all instruments, i.e. everything that isn't drums or vocals) - really works well to glue things together. I need to make more!!

Thanks IGOR!!!

 

[jandoste]

Looking great Jandoste!

I wish mine looked like that - I've been using it for almost a year with no case at all, just screwed onto a piece of wood! hahha  I'll have to post a picture ;D

Can't take it out of the studio, even to put it in a case - it sounds too good.

I've used my 2254c on a bunch of mixes, found it really useful so far. My favourite DIY compressor. A few tracks i've used it on should be released in the near future - I'll try to post some links!

I actually just delivered the a final mix tonight - I was using it on my INST bus (all instruments, i.e. everything that isn't drums or vocals) - really works well to glue things together. I need to make more!!

Thanks IGOR!!!

Thanks Igor & Haima
I have never get the 2254C's sound with any hardware/software I'm so happy with this baby ! and hope I'll build  + four
Thanks Igor ! I use my 2254C for vocal/ drum/guitar/ Piano/ etc etc !
cheers,

 

[Igor]

Yep. Classics with a bit simplified assembly.
Should sound good, when done with good components and assembled by good hands with love

 

[Rybow]

I have a lot of extra 1n4153's that I just got in the mail if anyone needs them. The issue is, I am not entirely sure that they are 1n4153's. They are orange with a blue band around them. They are fatter than 1n4148's, but look very similar. My main concern is the measurement. I have measured 50 of them so far, and they all measure between 0.593 and 0.598 on my DMM's diode test function. Could be my DMM sucks (it was cheap), so I am going to borrow my buddies fluke to see if things change.

If they are the real deal, then I have a lot of extras! If you need 1n4153's, I can send you some once i have confirmed that they are good.

 

[Igor]

That's good! My 1n4153's measuring 0.730 ....  0.770 with workbench Flike, btw, but the current can be different.
The idea is to match diodes by current @ say 0.5 and 0.05 ma. I wrote here about test jig (5V supply, 1k and 10k, switch).

 

[Rybow]

That's good! My 1n4153's measuring 0.730 ....  0.770 with workbench Flike, btw, but the current can be different.
The idea is to match diodes by current @ say 0.5 and 0.05 ma. I wrote here about test jig (5V supply, 1k and 10k, switch).

Cool igor. I will look for that test jig and set it up on my breadboard. Re-tested with a fluke, and they are all measuring the same. Anyways, I'll retest on the jig.

 

[DAN_000]

I finished 2254c today,  a few ground issue related to output pins, marked 1=hot 2=gnd 3=cold on board (I used standard xlr pinout on this)  then i discover my mistake and everything is ok. Not hum at all.

The sound is BEST !!!  Im really happy with this.  This type of compression and sonic character was I looking for a long time.
Congratulations Igor !

 

[haima]

The 2254c sounds great doesn't it!

Glad you got it working DAN_00 

And Igor, can't thank you enough for this great project - I better buy some more boards before the good word spreads further and you run out!

Haima

 

[Igor]

Cool!!!!!!!
Happy to know about another working unit! Have a fun, dude!

 

[r2d2]

hey
thinking to get a 2254 "Gun-pressor" (  :  )
checked many pages ,docs , etc....
(to see if i can make it by myself...)
but , for some "doubt" i have not more found the answer ,like :
(excuse me if i ask here)

in the bom doc i found some resistor part signed in this way:
R'11
R"10
R3"
(almost all 2% MF 0,25w)
then the symbols : '
and : "

indicate a particular type of resistor , like:
0,1% or 0,01% , "flame retardant" etc.... ,
or all resistor can be standard type (1-2% 0,25w..) ?
peace

ps
question is why
on some image about finished 2254c
i see different type of resistor placed
("mainboard" and "controls board")
.

 

[jandoste]

all resistor can be standard type (1-2% 0,25w..) ?

Yes, that's it !

 

[jandoste]

I soldered like that.

 

[r2d2]

Thanks "Jandoste" !
you done correct part placement ,
(sorry , probably i explained evil)

but at the rear/back of pcb (solder side)
the holes are very very close
(resistors "meet point")
for example between the 33ohm and 51ohm resistors (com-mkup)
the holes/plots  , seem united (so close)
(see image attached)
then also the other resistors "meet points" can be united,
or have to be separated ?

peace
(all over)

 

[jandoste]

Thanks "Jandoste" !

or have to be separated ?

you have to solder them vertically yeah, they are so close but...
if you are in EU you can send me and I'll solder them like a soldier
with pleasure !
Cheers,