2254C: Classic. Class A. Simple and bold. Collecting the orders.

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Me three! This one is really setting my gears in motion  ;D

Looking forward to it! 100%
 
Yeah, he did.  I just figure checking in every month or so to see if it was still on the table is okay.  He might be busy with other stuff at the moment.

JC
 
It is ready, tested and working.
Now, updating BOM and documentation.

For sneak preview,

http://i251.photobucket.com/albums/gg291/diy33609/P1000043.jpg

http://i251.photobucket.com/albums/gg291/diy33609/P1000049.jpg

P1000040.jpg


P1000051.jpg
 
Man that looks excellent  :D This one is going to be some serious fun

Great stuff Igor - us lesser mortals can only thank our lucky stars
for opportunities to build such as these pcbs.

Best regards
 
So, each board is a mono unit and I should order two to build a stereo unit?  I see two transformers on the board in the picture, but doesn't each channel of a 2254 have 3 audio transformers (input, interstage, output)?
 
Output trafo is Big Gapped Eilor Hi-B C-Core Momma, see photos.
Yes, this unit using 3 trunny's, btw, original 2254 has 4 (one 31267 used in limiter sidechain detector).
Instead of limiter, I prefer sidechain HPF option...here it is. Pure benefit trafosaving-wise.

Yes, 2 boards for stereo.
Please!!!! a bit of patience, I will post all schemos, explanations, etc. within few days.
 
Will you be posting PCB layout for us home etchers, or does this need a PTH double-sided board?

[EDIT] I've just noticed the faint outline of tracks on the topside of the pcb so I think this is not a home etch!
 
Hi people, here's schematic and pcb comp placement:

http://i251.photobucket.com/albums/gg291/diy33609/schem.gif
http://i251.photobucket.com/albums/gg291/diy33609/pcb_fp.gif
http://i251.photobucket.com/albums/gg291/diy33609/pcb_.gif

BOM and support thread coming soon, if there's more than 20 people interested.

PCB's cost for single channel will be arround EUR50, stereo set with power supply EUR90.
PCB's are dual sided, excellent quality, as allways.
Price include shipping. If there's more than 100 PCB's, price drops significantly.

I can offer kits, with all the parts except transformers, XLR's and case.
Price depending on quantity, but in case there's 20 kits, it will come up less
than order parts by yourself from different suppliers, count in headache and time to order everything.

If you're interested in pcb's/kits, please write here.
 
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