My first amp!

tonga · 19th April 2005, 08:07 PM

Hello everyone,

I posted pictures of this in its mark I state but no-one seemed interested whilst it was nailed to a bit of chipboard with a bodged heatpipe from a PC for cooling , so I;m hoping you'll be more interested in the mark III version......Its my first so be nice or I'll

tonga · 19th April 2005, 08:09 PM

and another...

jaycee · 19th April 2005, 08:09 PM

Nice casework

How did you do it ?

What kind of circuit topology did you use ?

tonga · 19th April 2005, 08:11 PM

the rear....

tonga · 19th April 2005, 08:16 PM

and the guts..

tonga · 19th April 2005, 08:19 PM

Thanks....I designed the chassis around the heatsinks of which I got 5 for £40 off e-bay. The panels I had made up to my design by scheaffer AG, you download the software, design the panel and they post it to ya in a week or two. The panels cost £90 total including delivery from germany! The amp itself is a kit from white noise audio which sounds great to my ears. As a first build I thought a kit would be a prudent way to learn without ending up with a pile of junk.

tonga

jaycee · 19th April 2005, 08:26 PM

I was looking at using Schaeffer, but £90! Owtch

I guess the PSU is in an external case ?

tonga · 19th April 2005, 08:35 PM

Yeh psu is elsewhere in a crappy plastic box. The £90 was for all four panels in 3mm thick ally with drilling and lettering. For just a front and rear panel it wouldve been £35-40 and this includes VAT etc...I thought it was a reasoable fee as I dont have access to the tools required and I used a load of letters in different sizes (you pay each time a tool is changed) so you could get the price down.

tonga

jleaman · 19th April 2005, 08:40 PM

Looks clean and nice. Where did you get the board's ?

You'r wiring inside could be cleaned up and maybe a heavy guage too
: O )

jaycee · 19th April 2005, 08:46 PM

Yep, that is one suggestion I would make - consider fitting some local PSU resivoir caps and using heavier guage wiring for the PSU cabling.

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19th April 2005, 08:09 PM	#3
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Nice casework How did you do it ? What kind of circuit topology did you use ?

19th April 2005, 08:19 PM	#6
tonga diyAudio Member Join Date: Feb 2005 Location: Leicester	Thanks....I designed the chassis around the heatsinks of which I got 5 for £40 off e-bay. The panels I had made up to my design by scheaffer AG, you download the software, design the panel and they post it to ya in a week or two. The panels cost £90 total including delivery from germany! The amp itself is a kit from white noise audio which sounds great to my ears. As a first build I thought a kit would be a prudent way to learn without ending up with a pile of junk. tonga

19th April 2005, 08:26 PM	#7
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	I was looking at using Schaeffer, but £90! Owtch I guess the PSU is in an external case ?

19th April 2005, 08:35 PM	#8
tonga diyAudio Member Join Date: Feb 2005 Location: Leicester	Yeh psu is elsewhere in a crappy plastic box. The £90 was for all four panels in 3mm thick ally with drilling and lettering. For just a front and rear panel it wouldve been £35-40 and this includes VAT etc...I thought it was a reasoable fee as I dont have access to the tools required and I used a load of letters in different sizes (you pay each time a tool is changed) so you could get the price down. tonga

19th April 2005, 08:40 PM	#9
jleaman Banned Join Date: Apr 2002	Looks clean and nice. Where did you get the board's ? You'r wiring inside could be cleaned up and maybe a heavy guage too : O )

19th April 2005, 08:46 PM	#10
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Yep, that is one suggestion I would make - consider fitting some local PSU resivoir caps and using heavier guage wiring for the PSU cabling.