Big Electro Research Class A amp - 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 6th August 2010, 09:55 PM   #1
lgreen is online now lgreen  United States
diyAudio Member
 
lgreen's Avatar
 
Join Date: May 2003
Location: San Diego, USA
Default Big Electro Research Class A amp

Here is an interesting and big class A amp.

EBAY Link

I'm not affiliated but thought that this is so rare others might want to see it.

cool stuff
- hours runtime meter!
- internal fan but no venting on the case? where is the air going?

Some kind of "calibrator" to null the distortion from the 2 channels? How did that work?

Click the image to open in full size.

Click the image to open in full size.
__________________
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.

Last edited by lgreen; 6th August 2010 at 09:58 PM.
  Reply With Quote
Old 6th August 2010, 10:08 PM   #2
diyAudio Member
 
Join Date: Feb 2005
Location: Gelderland
a fan as internal heatspreader is quite nice and has several pros.
most heat will eventually be dissipated by the sidewall heatsinks.
it looks like a lab amp of sorts (me likes ;p)
  Reply With Quote
Old 9th August 2010, 03:57 AM   #3
lgreen is online now lgreen  United States
diyAudio Member
 
lgreen's Avatar
 
Join Date: May 2003
Location: San Diego, USA
Not sure its a lab amp. What do you mean a fan as a heat spreader? Put in a fan and no vent holes and the heat spreads to the heatsinks?
__________________
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.
  Reply With Quote
Old 9th August 2010, 05:15 AM   #4
diyAudio Member
 
Join Date: Feb 2005
Location: Gelderland
yes, and to equalize spot heating of some parts. ofcourse the heatsinks self must be cool (as in large for the power they dissipate), as they will be the coolest things of the case. i'd guess the output transistors are straight on the heatsinks.
furthermore one does not have to have ventilation slots to outside, so dust stays out in principle.
there is some dust on the fan of the pic, i wonder where it came from.
i'd quess it is more than is in one or a few of such cases full of air :P
  Reply With Quote
Old 9th August 2010, 01:26 PM   #5
expert in tautology
diyAudio Member
 
bear's Avatar
 
Join Date: Apr 2002
Location: New York State USA
Wow!

As you can see by the price, this is a "famous" amp. Designed by John Iverson... If ur not familiar with his story, you might search on the web. A bit of "Jimmy Hoffa" in the tale...

_-_-bear
__________________
_-_-bear
http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- [...2SJ74 Toshiba bogus asian parts - beware! ]
  Reply With Quote
Old 9th August 2010, 02:45 PM   #6
lgreen is online now lgreen  United States
diyAudio Member
 
lgreen's Avatar
 
Join Date: May 2003
Location: San Diego, USA
No kidding- check this out on the Prison Planet Forum.
__________________
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.
  Reply With Quote
Old 9th August 2010, 04:20 PM   #7
diyAudio Member
 
john curl's Avatar
 
Join Date: Jul 2003
Location: berkeley ca
Probably the mafia got him. My best guess. The local power company allegedly burned up his power generator as well. He just did not have the proper 'fear' of authority.
  Reply With Quote
Old 9th August 2010, 07:22 PM   #8
lgreen is online now lgreen  United States
diyAudio Member
 
lgreen's Avatar
 
Join Date: May 2003
Location: San Diego, USA
The amp does look very nice though. Was it good?
__________________
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.
  Reply With Quote
Old 9th August 2010, 07:35 PM   #9
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
Quote:
Originally Posted by lgreen View Post
No kidding- check this out on the Prison Planet Forum.
From that article, so you can judge its... ummm. reliability:

Quote:
Recently, a NWO (SY: New World order, a favorite of conspiracy buffs and paranoids) site like this was taken down the second time I attempted to access it. There were numerous good articles on the site and I had even linked it to my blog so that I could access it whenever I decided to. And all of the sudden, like the post on John Iverson, it was also gone.

Now the FEDS do access my thoughts 24 hours a day by way of NSA audio/visual satellites and remote neural monitoring technology; so they certainly knew that I'd intended to research this information -- they can even see what I am seeing through my own eyes by tapping into the visual cortex of my brain.

They do this to millions of Americans daily, however do to a serendipitous situation, I just happen to be one of the few who actually knows that it is happening to him. (See John Akwei VS NSA to learn more about the NSA's satellite based remote neural monitoring technology.) And because of this the FEDS in all likelihood took the site down so that I would not be able to add it to this article.

*** Update -- Nearly a year later I was able to find information on the person who had this Website. His name is John Alexander, a former US Colonel who was involved in the purchase of psychotronic weaponry from the late Dr. Igor Smirnov. Smirnov was consulting with the FBI during the WACO seige as the Bureau decided whether or not to use psychotronic weaponry in the attacks on the Branch Davidians. He later sold the patent for this technology to Colonel Alexander's group and less than a year later died of a heart attack.
__________________
You might be screaming "No, no, no" and all they hear is "Who wants cake?" Let me tell you something: They all do. They all want cake.- Wilford Brimley
  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
Electro-Harmonix Freedom Amp schematic. thomj513 Instruments and Amps 12 31st May 2012 05:31 PM
Big Toroids & Big Caps K-amps Swap Meet 10 25th June 2009 07:43 PM
Class D audio power amplifier research rob mullen Class D 31 15th November 2008 09:30 PM
What type of Relay for a power amp? Electro-mechanical? Brit01 Solid State 8 11th August 2008 02:46 PM
Small BIG power for not so high-end class D diy’s Joep Zonnebloem Class D 29 29th April 2005 04:39 PM


New To Site? Need Help?

All times are GMT. The time now is 08:55 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