Search found 14 matches

by peranders
Tue Jan 12, 2010 10:29 am
Forum: Everyones Projects
Topic: ALW Super regs
Replies: 57
Views: 36045

I have made a negative version also and the pcb is blue. Picture is here
by peranders
Sat Aug 15, 2009 4:52 pm
Forum: Solid State
Topic: Op amps review.
Replies: 9
Views: 30032

Here is something to dig in: Samuel Groener and especially here http://www.sg-acoustics.ch/analogue_aud ... ortion.pdf
by peranders
Sat Aug 15, 2009 4:49 pm
Forum: Solid State
Topic: Heatsinks.
Replies: 1
Views: 4108

Unfortunately I don't have a picture of the heatsinks I have been working with. They are water cooled and can cool 2 kW. They were in a PSU capable of 2 kA!
by peranders
Wed Mar 25, 2009 2:36 pm
Forum: Everyones Projects
Topic: ALW Super regs
Replies: 57
Views: 36045

In one inner layer I have the signal ground and the three other layers I have the power ground. The signal ground and power ground meet in a single point. The high current traces are doubled, goes on both sides.
by peranders
Wed Mar 25, 2009 1:21 pm
Forum: Everyones Projects
Topic: ALW Super regs
Replies: 57
Views: 36045

What do you think of this board?
Image
I have made a 4-layer board which seems to work quite nicely.
by peranders
Tue May 20, 2008 6:40 pm
Forum: Headphones
Topic: what Headphone amp do you have
Replies: 105
Views: 130316

One of my headphone amps of my own design look like this

Image
The power supply consists of four super regulators and the whole design is dual mono.
Distortion figures here:
http://www.jmd.szm.sk/Audio/Measurement ... F_amp.html
by peranders
Mon May 19, 2008 9:29 pm
Forum: Everyones Projects
Topic: ALW Super regs
Replies: 57
Views: 36045

OK Lee the spare +5v and 12v are yours. All, I've hit a problem with the LM329DZ. Can't seem to get it from anywhere, well not without major cost involved. I note Tony used an LM336 for his 5v version but I'm getting the TL431 from Rapid for that. The +12v version calls for the LM329 a 6.9 precisio...
by peranders
Tue May 13, 2008 5:16 pm
Forum: Solid State
Topic: Op amps review.
Replies: 9
Views: 30032

Such opinions has less importance if not the specific opamp is designed in properly. Using Brown Dog adaptors is not "properly". If you only have a socket and just change opamps you will get a result but the opamp will hardly work optimally. If a test should be done each opamp will have it...
by peranders
Tue May 13, 2008 3:12 pm
Forum: Assorted Stuff
Topic: Interesting Transformer winding
Replies: 4
Views: 5158

This technique is sometimes used in high current transformers. I have worked in a kiloampere company....
by peranders
Tue May 13, 2008 2:24 pm
Forum: Assorted Stuff
Topic: Languages
Replies: 1
Views: 2956

Google has also and now into swedish... but how fun is that?
by peranders
Tue May 13, 2008 2:21 pm
Forum: New Users
Topic: Hello from the west coast of Sweden
Replies: 7
Views: 7422

Those were the days, a long time ago.

Now I'm into a new RIAA amp but since I'm not allowed to post any links you'll have to visit my homepage and search for QSX03 which the amp is called.

http://sjostromaudio.com/smf/index.php/topic,106.0.html
by peranders
Thu May 01, 2008 1:06 pm
Forum: New Users
Topic: Hello from the west coast of Sweden
Replies: 7
Views: 7422

Compare my avatar! :D
by peranders
Thu May 01, 2008 11:47 am
Forum: New Users
Topic: Hello from the west coast of Sweden
Replies: 7
Views: 7422

I found this forum when I was Googling.
by peranders
Thu May 01, 2008 11:43 am
Forum: New Users
Topic: Hello from the west coast of Sweden
Replies: 7
Views: 7422

Hello from the west coast of Sweden

Hi!

I'm from Göteborg, Sweden and I'd want to say "hej".