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Old 12th October 2012, 04:56 AM   #3411
abetir is offline abetir  Philippines
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It seems, the text on Shaan's first PCB lay-out confuses others.
The corrected PCB with the readable text (left image) and Naf's posted corrected PCB with the reversed text (right image) are both correct for toner transfer. No need to mirror. See the components lay-out (center image), the imaginary copper tracks and both the b&w bottom copper tracks matches. Personally I don't mind the text but I look into a particular spot in the pcb artwork, and in Shaan's design the input. The input in the component lay-out goes to the right side and in both the b&w bottom copper (for toner transfer) the input was also on the right side, then that is good to go for toner transfer. Of course after the image has transferred to the pcb it will become reversed but then you will be flipping the board so that the parts sits on top of the board and not on the bottom copper exactly just like on the given component lay-out..
Attached Images
File Type: png SSA_PEECEEBEE_BOTTOM_TOPVIEW.png (112.7 KB, 514 views)
File Type: png SSA_PEECEEBEE_Correction.PNG (67.1 KB, 509 views)
File Type: png SSA_BOTTOM_TOPVIEW_2_Naf.png (354.5 KB, 434 views)
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Old 12th October 2012, 05:04 AM   #3412
abetir is offline abetir  Philippines
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Perfect DIY...well almost...
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File Type: jpg IMG_0019.JPG (949.7 KB, 413 views)
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Old 12th October 2012, 06:34 AM   #3413
naf is offline naf  Indonesia
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Quote:
Originally Posted by abetir View Post
Perfect DIY...well almost...
Yihaaa.... nicely done ...perfect DIY
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Old 12th October 2012, 06:41 AM   #3414
naf is offline naf  Indonesia
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Quote:
Originally Posted by abetir View Post
It seems, the text on Shaan's first PCB lay-out confuses others.
The corrected PCB with the readable text (left image) and Naf's posted corrected PCB with the reversed text (right image) are both correct for toner transfer. No need to mirror. See the components lay-out (center image), the imaginary copper tracks and both the b&w bottom copper tracks matches. Personally I don't mind the text but I look into a particular spot in the pcb artwork, and in Shaan's design the input. The input in the component lay-out goes to the right side and in both the b&w bottom copper (for toner transfer) the input was also on the right side, then that is good to go for toner transfer. Of course after the image has transferred to the pcb it will become reversed but then you will be flipping the board so that the parts sits on top of the board and not on the bottom copper exactly just like on the given component lay-out..
you've got it!, i'm always print it in paper and see throgh the light before toner transferring...and that's why i manually flip SHAAN and SSA text.
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Old 12th October 2012, 09:02 AM   #3415
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Quote:
Originally Posted by abetir View Post
Perfect DIY...well almost...

Hi abetir,

What paper did you use to transfer the toner in the pcb?

Regards,
Boyet
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Old 12th October 2012, 10:42 AM   #3416
shaan is offline shaan  India
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I think it's magazine cover...
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Old 12th October 2012, 11:20 AM   #3417
abetir is offline abetir  Philippines
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..pretty close Shaan..
It's actually an A4 copy paper wrap.

boyet,

I was told the A4 size stickers being sold at National Bookstore is ideal for use on toner transfer method (you won't be needing the sticker of course just take the "backing paper"), better yet check on the "Staples" brand. I dunno' if you can find the "wrapper" that I've used, it was actually for office use, but I guess any glossy type paper that can tolerate heat without peeling off, should be good enough for the job.

In laserjet toner transfer method, "practice makes perfect"
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Old 12th October 2012, 11:24 AM   #3418
abetir is offline abetir  Philippines
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Yihaaa.... nicely done ...perfect DIY
Thanks Naf!
I just hope I can populate the board the soonest...right now i'm feeling real slow working on my other amp build.
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Old 12th October 2012, 12:09 PM   #3419
shaan is offline shaan  India
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Very nice abetir. Waiting to see another happy SSA owner!
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Old 12th October 2012, 12:38 PM   #3420
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Dear Lazy Cat ,
can you suggest what to change in schematics to adapt it to 40-45VDC regulated PSU or even 56VDC if not regulated (didnt decided yet)?
http://www.diyaudio.com/forums/attac...-basic-pcb.jpg

And output transistors.I have MJL21194/15025 but theese are too slow i guess,only 4mhz. I have NJL3281 too which is 30mhz device but it's with diodes ,different pinout.But that's managable if needed.
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