Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

Aikido Gainclone
Aikido Gainclone
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 30th July 2008, 04:12 AM   #11
Daveze is offline Daveze  Australia
diyAudio Member
 
Join Date: Jun 2004
Location: Sunny Queensland, Australia
Are there any internal pics? I'm thoroughly impressed.
__________________
Signature Pending...
  Reply With Quote
Old 30th July 2008, 04:37 AM   #12
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
It is probably very simple

Two LM3875 chips
sitting at those 2 Black Heatsinks = Right & Left side of chassis.
See my attachment image!
Attached Images
File Type: jpg franz_tube_lm3875_gainclone_1.jpg (86.2 KB, 538 views)
__________________
lineup
  Reply With Quote
Old 30th July 2008, 05:02 AM   #13
Franz Gysi is offline Franz Gysi  Switzerland
diyAudio Member
 
Franz Gysi's Avatar
 
Join Date: Oct 2007
Internal pics? Of course...

Click the image to open in full size.

The boards where made by digi01 and me. Some errors on it

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Just to avoid confusion in this thread: this is NOT an Aikido Gainclone. It is a tube buffered inverting t-net gainclone.

Franz
  Reply With Quote
Old 30th July 2008, 05:16 AM   #14
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
Very nice work, Franz.
And lovely images
__________________
lineup
  Reply With Quote
Old 30th July 2008, 07:22 AM   #15
Daveze is offline Daveze  Australia
diyAudio Member
 
Join Date: Jun 2004
Location: Sunny Queensland, Australia
Oooh, that's neat.

I was actually hoping to see it P2P/air wired...but that's just as cool and much tidier.
__________________
Signature Pending...
  Reply With Quote
Old 30th July 2008, 08:12 AM   #16
meanman1964 is offline meanman1964  Belgium
diyAudio Member
 
meanman1964's Avatar
 
Join Date: Oct 2006
Location: Belgium the land of chocolate
Can you use a 6922 tube with this amp?
  Reply With Quote
Old 30th July 2008, 08:22 AM   #17
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
Yes, you can!

If fact if you study one of his first images you see one E88CC tube used .......
Image:
http://image.n0t.de/f-3605e2cf87c9fe...ba082ff1a3.jpg

Which is almost same tube, not really 100%, but close:
6DJ8 = E88CC = Sovtek 6922
__________________
lineup
  Reply With Quote
Old 30th July 2008, 08:38 AM   #18
Nordic is offline Nordic  South Africa
diyAudio Member
 
Nordic's Avatar
 
Join Date: Sep 2005
E88cc=ecc188=6dj8=6922, well almost.
  Reply With Quote
Old 30th July 2008, 08:53 AM   #19
lineup is offline lineup  Sweden
diyAudio Member
 
lineup's Avatar
 
Join Date: Dec 2005
Location: the north
not really 100% but ...

and you say ECC188, too
I did not know this, Nordic
__________________
lineup
  Reply With Quote
Old 30th July 2008, 10:09 AM   #20
Nordic is offline Nordic  South Africa
diyAudio Member
 
Nordic's Avatar
 
Join Date: Sep 2005
I mistyped
E188CC tubes are the special matched section, low noise and microphonics version of the E88CC/6922.
This tube is also known as 7308.

Other similar triodes (to ECC88) are PCC88, CCa and CV2492..

And of course E288CC / 8223, are absolute top sounding special quality E188CC / 7308. They are not exactly the same as the E88CC / 6922. They work for example at a little more heater current (0.475A against 0.3A). Also they have different amplification and plate impedance, but this is not problem in common E88CC circuits.

And then we have the russian 6H1pi and 6H23pi
  Reply With Quote

Reply


Aikido GaincloneHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
My Aikido!! piero7 Tubes / Valves 9 31st August 2009 10:56 AM
Aikido hum kacernator Tubes / Valves 29 29th December 2008 12:45 AM
All FET Aikido kacernator Tubes / Valves 26 24th September 2008 11:09 PM
WTB: Aikido PSU habsrock93 Swap Meet 23 13th July 2007 11:23 PM
Aikido PSU help cbutterworth Tubes / Valves 48 13th October 2006 07:54 PM


New To Site? Need Help?

All times are GMT. The time now is 02:52 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki