|
Home | Forums | Rules | Articles | diyAudio Store | Blogs | Gallery | Wiki | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
Solid State Talk all about solid state amplification. |
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
![]() |
|
Thread Tools | Search this Thread |
![]() |
#1 |
diyAudio Member
Join Date: Nov 2003
Location: Klepp
|
![]()
Hi!
Any comments on my PCB layout and how to improve it? Is the grounding good enough wth the jumpers? The pot is a Noble 50K dual log. ![]() |
![]() |
![]() |
#2 |
diyAudio Member
Join Date: Nov 2003
Location: Klepp
|
Here is the schematic:
|
![]() |
![]() |
#3 |
diyAudio Member
Join Date: Nov 2003
Location: Klepp
|
Read this thread if you want to read more about this preamp and others who have buildt it.
|
![]() |
![]() |
#4 |
Electrons are yellow and more is better!
diyAudio Member
|
I think the layout is fair but somehow I don't like your efforts to create a groundplane. Probably it will work fine but I would still suggest that you have ground under the opamps and two traces with v+ and V-, close to the IC's. I would also suggest compactness and smaller parts if possible.
Maybe you should have the BUF's close to the outputs of the opamps? Try to get the physical layout similar to the schematics. Why don't you consider a pcb with groundplane? If you are going to make it yourself it's real easy with a groundplane. Just put brown parcel tape on the upper side. Se picture below. ![]()
__________________
/Per-Anders (my first name) or P-A as my friends call me Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 35 pcb's in interest. |
![]() |
![]() |
#5 | |
Electrons are yellow and more is better!
diyAudio Member
|
Quote:
Schematics here
__________________
/Per-Anders (my first name) or P-A as my friends call me Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 35 pcb's in interest. |
|
![]() |
![]() |
#6 | |
diyAudio Member
Join Date: May 2002
Location: The great city of Turnhout, BE
|
Quote:
Hi, Are you sure you need R5 & R15? It negates the effect of the buffer. What's the value of those resistors? Jan Didden
__________________
Cable: a potential source of trouble interconnecting two other potential sources of trouble - Erik Margan Linear Audio pubs and articles . The SilentSwitcher now at diyaudio store SilentSwitcher. Keeping in touch with SY. |
|
![]() |
![]() |
#7 | |
diyAudio Member
Join Date: Nov 2003
Location: Klepp
|
Quote:
![]() Maybe I'll do that, and have all ground on top layer. |
|
![]() |
![]() |
#8 | |
diyAudio Member
Join Date: Nov 2003
Location: Klepp
|
Quote:
50R |
|
![]() |
![]() |
#9 | |
Electrons are yellow and more is better!
diyAudio Member
|
Quote:
tape etch drill a bit with 3-4 mm drill very easy ![]()
__________________
/Per-Anders (my first name) or P-A as my friends call me Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 35 pcb's in interest. |
|
![]() |
![]() |
#10 | |
Electrons are yellow and more is better!
diyAudio Member
|
Quote:
__________________
/Per-Anders (my first name) or P-A as my friends call me Group buy: DCT03 DC trap for big toroidal transformers. Sign up for interest HERE. 35 pcb's in interest. |
|
![]() |
![]() |
Thread Tools | Search this Thread |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
AD8610, OPA134, OPA627, BUF634 SMD headphone amp | peranders | Headphone Systems | 75 | 18th March 2013 09:01 AM |
Anyone interested in PCB's for OPA627/BUF634 based headphone amp? | Maxhawk | Headphone Systems | 39 | 21st February 2013 06:32 AM |
My opa549 amp and opa627+buf634 pre | Alcaid | Chip Amps | 40 | 22nd June 2006 03:21 AM |
YardBird OPA627/637 BUF634 preamp/headphone amp | Russ White | Headphone Systems | 4 | 23rd November 2005 01:53 AM |
New To Site? | Need Help? |