2254C build/support thread

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here some better quality pics with friends phone...

EDIT : laser cut fronts panels are due couple of more weeks, come cabling will be re-done once the fronts arrives...
this front will be cut down and will be fitted behind the actual laser front... thats way shafts are longer at the moment.


IMG_0356.jpg


...
IMG_0360-1.jpg


 
hope your not showing off now Kam!  ;)

that's great, really clean, love to see the fronts when they arrive.

 
sinestaraudio said:
hope your not showing off now Kam!  ;)

not just yet  ;D, just kidding

sinestaraudio said:
that's great, really clean, love to see the fronts when they arrive.

thank you Pete, me too. couple more weeks  8)
 
Hi Igor (et al),

Please confirm something for me... the issue of VU meters is NOT covered in the BOM for this project.

In your initial post here: http://www.groupdiy.com/index.php?topic=29977.0 you claim that the Sifam AL19 can be used, but this is a VU meter, elsewhere it has been suggested that this projects meter is infact a DC 1mA meter and that the Sifam Presenter 19 series is a better part?

You actually posted this back on page 5 of this thread:

Actually, 1ma meter should be used

I see that this meter is available in various scales, how much GR is unit capable of and how do these meters calibrate in relation to them?

Anyone at the stage of sourcing VU meters yet? I already have my cases cut out for the presenter range now just trying to make it all fit together.

Cheers

Matt
 
Hi guys, I had no notifications about this thread from 1st august, maybe it gone under tones of mails...dunno.
Anyway, now I have bit of time (finnished some non-audio projects
and moved from 12-14 hr/day worktimetable to normal 9-10 hr a day :)

Let's try to answer the q's...
@ RightOnMusic: I PM'd you all the questions about caps etc, feel free to post it here
if it can be helpful to others builders.

@ Kam: I happy about your 2254C, BTW, this is an example if the hands are grewing from right place,
the man who not very familar with electronics can make relatively complicated audio unit working
and sounding, just with some patience and motivation. Cheers!

@69'r: sorry, man, RTFM. First, something like a book about how to communicate with people.
It can be Karnegi, not best (IMHO) or The Tao of Pooh as IMHO good one :)
Second, Horovitz and Hill, Art Of Electronics. You will spend less time on this reading than
arguing with the people, but with way better results both for your nerves and others pleasure.
About NOBODY SHARING and simple human relations.
People neither bad or good, but just a mirror.
At least not f@.... sorry, drill the people with the questions already answered, pointed, etc.
I can't answer the questions from mail you sent by simple reason it is about
draw every part, arrow, and type "take this please into your hand, put there,
take the soldering iron, solder it here", every step with video guide.
And please stop call me superigor in caps, it is no good for keyboard karma :)
Many people received their kits, freaked about hour-three with sorting (sorry, it is impossible to put
every single part in single packet with sticker where it goes)....and so on.

Kam, if you will like to delete the post you mentioned, please leave this:

.....................
updated tranie guide:

http://www.groupdiy.com/index.php?topic=32605.msg420310#msg420310

check with the schematic. download carnhill transformers guide from audiomaintenance.com
read all available 33609 pages.
read BA283 pages
read original 2254 thread... ( very first one )
for calibration, refer to 33609 pages. leave "attack" at fast when calibrating ( 8'o clock).
.................
some cap values on kit may not match pcb.......leave those ones to last,
you will find them where they belong.
.....................................
i have no digital camera either. but, i referred to Igor's pictures at first page.
i only got stuck at interstage transformer wiring, due, schematic and old tranie... other than that, i am a beginner and
worked at first fire up... first calibration was 0.3. after placing everything in to case, re-calibrated and its 0.1db now.
.............................................
Igor's kit may look messed up at first. ........... he separated main pcb and controller parts in different packing.
thats way it looks messy, until you understand whats going on.
..........................................

measure each component before solder anyway...
even if you get them from mouser....
it took my couple of hours to sort Igor's kit.
and labeling them, and separating them for main pcb and controller pcbs.
............................................


It is a way helpfull.

@RightOnMusic: I did not received mail from you with missing components IIRC or maybe it is gone somewhere...
OK. In any case, send me pm and as it was several times I sent the missing components without requiring
any additional costs. If this was my fault, I have to fix it.


Kam and Sinestar answered about cap questions, lot of thanx. No sharing???? Hm... :)
Thanx a lot again, guys!

Regarding the terrorists. @6tnr, PLEASE go to the cinema and watch "Bruno".
Tones of positive emotions :)

I tried to keep my english understandable this time.




 
Matta, 1 MA Sifam. Like this:
http://il.farnell.com/sifam/19w0-1ma0-100/meter-19w-0-1ma/dp/1262061

Faster and cheaper (both better) meter is ST7.
http://il.farnell.com/anders-electronics/st7/vu-meter-rect-0-200ua/dp/7758200
It needs different scale (request by mail) and one little trick.
Take 200R resistor and put in parallel to ST7, and 680R resistor in series.
This way it close to 1ma full scale.
 
Igor said:
@69'r: sorry, man, RTFM. First, something like a book about how to communicate with people.
It can be Karnegi, not best (IMHO) or The Tao of Pooh as IMHO good one :)
Second, Horovitz and Hill, Art Of Electronics. You will spend less time on this reading than
arguing with the people, but with way better results both for your nerves and others pleasure.
About NOBODY SHARING and simple human relations.
People neither bad or good, but just a mirror.
At least not f@.... sorry, drill the people with the questions already answered, pointed, etc.
I can't answer the questions from mail you sent by simple reason it is about
draw every part, arrow, and type "take this please into your hand, put there,
take the soldering iron, solder it here", every step with video guide.
And please stop call me superigor in caps, it is no good for keyboard karma :)
Many people received their kits, freaked about hour-three with sorting (sorry, it is impossible to put
every single part in single packet with sticker where it goes)....and so on.

That i done is only and simply this:
1-Asked for large good  picture about pcb with parts placed ,
ONLY AND ONLY AS HELP FOR ANYBODY NEED IT !!!!!
(overall because the pcb+parts pictures you posted in first page are not the same of the pcbs sent)

"One" Guy of the "Others"  reply with : I don' have a good "Camera" for ..........
:eek:
Strangely some day after (that reply) , same "One" Guy ,  
post supercool pictures in a "FOR SALE 2254" units at black market ecc....page,
:eek:

No camera for help any other guys...... , but supercamera ready for sell and get $$$ money.....
;D  typical "UK".........
want you joke ? ….....no problem !!

2: Really no need video guide......!!!
3: Don't asked you part replacement or money refound !
   only Asked you some supplyer part code or hyperlink, where get them !!!

Hey mr : spent a lot of time to check and re-check parts , and report you parts missed
with extremely clear documents, photo and descriptions,
wno reply about !

WANT YOU JOKE ???
no problem !!!

8)
 
I am not joking. As long as here is SUPPORT THREAD, please remove your debats to brewery etc,
to let other people finnish their units in more comfortable way.
Regarding your questions: in reply to your mail, I answered about month ago, if there are missing parts,
please send me the list, will send them without charge. I don't see a problem with your 2254 kit especially.
There IS other problem, but please move it to brewery 'cause it is offtopic for this thread.

the reply was : I don' have a good "Camera" for

I have good enough camera. Anyone else did not asked the question about picture's resolution.
http://i251.photobucket.com/albums/gg291/diy33609/3.jpg
There was previous revision of pcb, people asked some questions, they were answered,
most of these questions can be easy figured out from reading the schem and comparing to pcb.
 
Igor said:
I am not joking. As long as here is SUPPORT THREAD, please remove your debats to brewery etc,
to let other people finnish their units in more comfortable way.

to the brewery ?
already said to the : "others" ?

[/quote]
Regarding your questions: in reply to your mail, I answered about month ago,
your reply was:
if there are missing parts, please send me the list, will send them without charge.
I don't see a problem with your 2254 kit especially.
[/quote]
:eek: :eek: :eek:
...you have all parts info on email from +/- 2 month , lost mail?
re-sent it , few minutes ago !

:)
 
2254C-PCB-STOPPED-BY#BDA.jpg (159KB), 2254C-DIODES-TRANS-LED+.jpg (128KB), 2254C-CONNECTORS-.jpg (87KB), 2254C-ic-trans-relay-.jpg (105KB), 2254c-capacitors-P2 wimA+.jpg (123KB), 2254C-CAPACITORS-P1-.jpg (126KB)

hello igor
after 6/7 weeks , many troubles and problems...... ,
i finally finished to separate and check the 2254c kits parts,
arrived mixed by shipping,
please see attached picture ( i sent you 2 emails , for try to avoid
antispam kill attached)
then i'm stopped at first pcb of the 2 i got from you
let me know
how we can do for complete kits and proceed with this killer project
thanks in advance
cheers
m.
6T9R

What do you want from me?

Here pictures of SAME kit as yours assembled by me.

I used same schematics and pcb drawing as posted on first page.

http://i251.photobucket.com/albums/gg291/diy33609/P1020690.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020687.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020684.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020682.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020679.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020676.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020659.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020658.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1020654.jpg
 

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