My Jung SuperReg PCB - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

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
Reply
 
Thread Tools Search this Thread
Old 12th August 2003, 06:42 PM   #11
grataku is offline grataku  United States
diyAudio Member
 
Join Date: Dec 2000
Location: -
Since you are at it why not line up all the in/out pads and distance/size them for some screw type connectors?

ALW has the negative board available, for the price just email him. I am sure he quoted me the higher price...
  Reply With Quote
Old 12th August 2003, 06:59 PM   #12
ALW is offline ALW  United Kingdom
diyAudio Member
 
Join Date: Jun 2001
Location: UK
Default That explains the explosion of webhits!

Boy my weblog's been going mad, now I know why!

Looks a lot like my Jung PCB

I'm flattered that anyone should choose to copy my PCB design, it's the sincerest form of praise, but there is an easier way

I do sell these, but don't promote it, simply because I couldn't cope with big demands. I only sell the kits upon request for that reason - I did the board for my own use, but the demand was overwhelming. I've sold over 100 so far, through word of mouth.

It's not been unknown for me to send the Gerber or Eagle files to non-UK residents, solely because it's often less hassle than me supplying kits with my current workload.

I do have a negative version available too, as is mentioned in the manual I have available on my website.

I'd also add that some things may have changed since a lot of my website was written, if you read my postings here you'll be able to deduce some of them, actual customers get free upgrades

The pre-reg adj pin does connect to the super-reg o/p and produces an input voltage 2.5V above the o/p, i.e. it maintains 2.5V across the super-reg. This scheme has advantages and disadvantages, but the overall balance is this scheme works best, but if I were doing it again now, I would do things differently.

The basic PCB works well though, both sonically and technically and is a good basis for comparison with mod's to the design or alternative topologies. They're stable and trouble-free.

The board posted above does have one advantage though - the 3x7 adj pin cap is now on-board.

It has a BIG disadvantage though - the AD797!

The AD825 is more stable and sounds better - and the board above has no SOIC option. The schematic on my site shows the AD797, 'cos I was too lazy to do and AD825 symbol in Eagle.

Don't use the AD797

Enjoy!

Andy.
  Reply With Quote
Old 12th August 2003, 07:13 PM   #13
ALW is offline ALW  United Kingdom
diyAudio Member
 
Join Date: Jun 2001
Location: UK
Quote:
Since you are at it why not line up all the in/out pads and distance/size them for some screw type connectors
I get the feeling that a regulator with potentially an o/p Z in the uOhm range (depending upon error amp) would be better with soldered connections.

Screw terminals?

We're not into mass-production here are we

Andy.
  Reply With Quote
Old 12th August 2003, 11:26 PM   #14
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default I see what you mean

Andrew was kind enough to send me a copy of his manual that I was able to open. Sorry Grataky, you where right, most of the info that I provided on this post is there.

Andrew, you are right. My PCB is almost identical to yours and I used only your parts location and schematic to guide me. I guest that in this case the form follow the function

I will use the AD825 then.

Thanks Andrew to be such a great help.
  Reply With Quote
Old 13th August 2003, 08:29 AM   #15
moamps is offline moamps  Croatia
diyAudio Member
 
Join Date: Oct 2002
Location: Croatia
Algar_emi,

ALW's PCB looks better, sorry.

Some ideas for your PCB are on picture.

Regards
Attached Images
File Type: jpg algar1.jpg (50.0 KB, 1945 views)
  Reply With Quote
Old 13th August 2003, 11:14 AM   #16
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default PCB ideas

Very good suggestions. I will implement them. Thanks.
  Reply With Quote
Old 13th August 2003, 04:49 PM   #17
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default The Final version using AD825

Following AWL recommendation, here my last version using the AD825 SMT package. I will try this version this week.
Attached Images
File Type: jpg jung pos_b.jpg (40.0 KB, 1674 views)
  Reply With Quote
Old 16th August 2003, 12:46 PM   #18
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default Positive Reg completed

I just finish my prototype of the Positive reg. Working just fine without any oscillation. I'm using the AD825. Found a small error on my PCB with C6. Did a small correction on the PCB. I will post the final Pos/Neg version when I'm done.

I will try to build the negative version this week.

To try their sound I will use them to supply my SuperDAC op-amp line stage and see if they improve the sound compare to a simple LM317 supply.
  Reply With Quote
Old 18th August 2003, 01:10 AM   #19
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Default Picture of the Positive Prototype

Picture of the Positive Prototype. I installed little connector for R8/R9 so I can select different voltages. With R8=R9=1K I got +15.22V at the output.
Attached Images
File Type: jpg my jung pos.jpg (87.8 KB, 1543 views)
  Reply With Quote
Old 18th August 2003, 04:11 AM   #20
ghetto is offline ghetto  United States
diyAudio Member
 
Join Date: Jul 2003
Location: Oklahoma
That looks very nice

Are you planning on having a batch produced at a PCB house? Would you be interested doing somewhat of a "group buy"?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help from Allen Wright SuperReg owner pchw Tubes / Valves 3 7th December 2008 07:57 PM
Allen Wright Superreg manual djmike Tubes / Valves 3 25th September 2008 02:48 PM
please suggest a pass element for superreg(5V, 60ma max) agent.5 Power Supplies 3 9th June 2005 08:03 PM
Help Need the VSE SuperReg schematic! Zappa Tubes / Valves 7 24th August 2003 01:31 AM


New To Site? Need Help?

All times are GMT. The time now is 02:43 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2