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 10th September 2002, 11:55 AM   #1
Banned
 
Join Date: Feb 2002
Location: Dallas,Texas
Question What is it?

????????
Attached Images
File Type: jpg mystery module.jpg (32.9 KB, 712 views)
  Reply With Quote
Old 10th September 2002, 12:04 PM   #2
diyAudio Member
 
Join Date: May 2002
Location: Switzerland
Hi HH

Looks like a "hand-sewn" OP-AMP.

Maybe its the one from Thomas Hartwig (THEL Audio) ?

Regards

Charles
  Reply With Quote
Old 10th September 2002, 12:11 PM   #3
diyAudio Member
 
Join Date: May 2002
Location: Switzerland
Bingo

http://www.thel-audioworld.de/pics/ma2001.jpg

It is called Musicamp 2000, costs about 64 Euros and received some good reviews.

Regards

Charles
  Reply With Quote
Old 10th September 2002, 12:22 PM   #4
jam is online now jam  United States
diyAudio Member
 
jam's Avatar
 
Join Date: May 2001
Location: Auburn, CA, USA
Default Lit up like a Christmas Tree !

Harry must be getting off on all those wonderful green LED's.

Jam
  Reply With Quote
Old 10th September 2002, 03:45 PM   #5
diyAudio Member
 
Join Date: Mar 2001
Location: Brazil
Default Thel

Seems to be used as first stage of this power amp.


Carlos
Attached Images
File Type: jpg thel_iqamp2.jpg (54.2 KB, 628 views)
  Reply With Quote
Old 10th September 2002, 06:58 PM   #6
skaara is offline skaara  Slovenia
diyAudio Member
 
Join Date: Jun 2002
Location: Europe, Slovenia
maybe its a vu meter
  Reply With Quote
Old 11th September 2002, 11:35 AM   #7
Account Disabled
 
Join Date: Aug 2002
Location: Near to the Pacific Ocean
What is it...
Bingo...
Christmas tree...
Green LEDs...
First stage...
UV meter...

What is it?

?????????

JH
  Reply With Quote
Old 11th September 2002, 12:29 PM   #8
yeti is offline yeti  Germany
diyAudio Member
 
Join Date: Nov 2001
Location: Ewersbach
Default What is it

It's an opamp, the content of the blackbox shown in the picture with the heatsink.
  Reply With Quote
Old 11th September 2002, 12:40 PM   #9
audioPT is offline audioPT  Portugal
diyAudio Member
 
Join Date: Aug 2002
Location: Right here


Guys:

The LED's are the current sources of the op-amp!
I think!

Go to:
http://www.passdiy.com/pdf/diyopamp.pdf
Is something near...


Pedro Martins
  Reply With Quote
Old 11th September 2002, 01:00 PM   #10
diyAudio Member
 
Join Date: May 2002
Location: Switzerland
Hi all

To end all questions and assumptions: it IS the Thel Musicamp 2000 as anyone could check at Thel's website (link posted within my FIRST answer).

It is a discrete op-amp for audio purposes and can be used (apart from the amp posted by carlmart) for preamps etc. Thel also uses them within their parametric EQ.

The LEDs will almost for sure be used FOR (not AS) the current sources within the circuit.

Regards

Charles
  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



New To Site? Need Help?

All times are GMT. The time now is 01:57 PM.


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