LM 4700 - SMD Layout

karahara · 9th March 2006, 04:49 PM

Hi.

Greetings from Germany.
Long time ago I decided to build an Amp based on LM4700. After some time I came up with a mixed SMD/through-hole design.

Here it is:

Complete Amp will be online soon.
If you're interested in layout/schematic I can post them too.

bye
kh

PierreG · 9th March 2006, 06:38 PM

Yes I am interested, as many others I'm sure.
Thanks for the offer.

karahara · 9th March 2006, 06:57 PM

Schematic

karahara · 9th March 2006, 07:02 PM

Board

(600dpi)

karahara · 9th March 2006, 07:05 PM

Silk:
All SMD-Parts are Case 0805.
Use Any Elko you like, I've used 4700µF/35V(not 1000µF as in Schematic)

PierreG · 9th March 2006, 11:48 PM

thanks

dfdye · 13th March 2006, 05:46 AM

Dumb question, karahara, but what did you use to transfer the artwork to the PCB's? I am trying to get a reliable method, but I haven't had great luck with the DIY methods I have used so far. I would love to hear what you used to get those great results.

Thanks!
David

karahara · 13th March 2006, 02:59 PM

Hi.

I used ordinary OHP-foil (Overhead/Daylight-Projector, don't know if it's the same word as in german) printed with an Ink-Printer Canon Pixma MP110. The light source was a UV-self-"browner" for your face with 4x11W bought on ebay.

dfdye · 14th March 2006, 12:04 AM

Ah! It was photo sensitized board material and not some sort of toner transfer! Thanks again for the info.

David

Leolabs · 15th March 2006, 02:04 PM

Are the wattages of the SMD resistors sufficient???

9th March 2006, 04:49 PM	#1
karahara diyAudio Member Join Date: Dec 2003 Location: Germany - Bavaria	LM 4700 - SMD Layout Hi. Greetings from Germany. Long time ago I decided to build an Amp based on LM4700. After some time I came up with a mixed SMD/through-hole design. Here it is: Complete Amp will be online soon. If you're interested in layout/schematic I can post them too. bye kh

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Xindak 805 monos $4700/pr USD	ro9397	Tubes / Valves	0	23rd October 2007 05:05 AM
Pioneer PD 4700	henri_85	Digital Source	2	26th January 2007 09:32 PM
Hitachi Ha-4700	JensRasmussen	Solid State	26	28th March 2005 10:24 AM
Wanted: Silmic 35v, 4700 ufd cap	Panelhead	Swap Meet	0	30th March 2004 05:43 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

9th March 2006, 06:38 PM	#2
PierreG diyAudio Member Join Date: Oct 2004	Yes I am interested, as many others I'm sure. Thanks for the offer.

9th March 2006, 07:02 PM	#4
karahara diyAudio Member Join Date: Dec 2003 Location: Germany - Bavaria	Board (600dpi)

9th March 2006, 11:48 PM	#6
PierreG diyAudio Member Join Date: Oct 2004	thanks

13th March 2006, 05:46 AM	#7
dfdye diyAudio Member Join Date: Dec 2005 Location: USA	Dumb question, karahara, but what did you use to transfer the artwork to the PCB's? I am trying to get a reliable method, but I haven't had great luck with the DIY methods I have used so far. I would love to hear what you used to get those great results. Thanks! David

13th March 2006, 02:59 PM	#8
karahara diyAudio Member Join Date: Dec 2003 Location: Germany - Bavaria	Hi. I used ordinary OHP-foil (Overhead/Daylight-Projector, don't know if it's the same word as in german) printed with an Ink-Printer Canon Pixma MP110. The light source was a UV-self-"browner" for your face with 4x11W bought on ebay.

14th March 2006, 12:04 AM	#9
dfdye diyAudio Member Join Date: Dec 2005 Location: USA	Ah! It was photo sensitized board material and not some sort of toner transfer! Thanks again for the info. David

15th March 2006, 02:04 PM	#10
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Are the wattages of the SMD resistors sufficient???

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)