Most exotic SET power amplifier - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 13th December 2012, 11:33 PM   #11
diyAudio Member
 
Join Date: Feb 2010
Location: Athens Greece
Quote:
Originally Posted by tomchr View Post
I kinda like the Frankenstein presentation, though, it does raise several safety concerns... Good to hear that you're planning to cover the transformers. I'm curious to see the final product.

The iron does indeed look custom wound. Bravely done.

~Tom
Safety concerns? why?
Everything has already been covered but will be uploaded tomorrow.
Every iron piece has been wound manually, it is custom built.
  Reply With Quote
Old 13th December 2012, 11:36 PM   #12
cotdt is offline cotdt  United States
diyAudio Member
 
Join Date: Oct 2005
Send a message via AIM to cotdt
Can you give us more details regarding the design?
  Reply With Quote
Old 14th December 2012, 01:14 AM   #13
Bigun is offline Bigun  Canada
diyAudio Member
 
Bigun's Avatar
 
Join Date: Jan 2009
Blog Entries: 2
Wow - I love it, nicely laid out and much more interesting that your 'fathers' tube amp.

please keep posting more details !
__________________
"The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.
  Reply With Quote
Old 14th December 2012, 01:44 AM   #14
garbage is offline garbage  Singapore
diyAudio Member
 
garbage's Avatar
 
Join Date: Apr 2004
Location: Singapore
very nice corian chassis. must have taken some time to layout and design. love the irons and the 816 too!
  Reply With Quote
Old 14th December 2012, 02:34 AM   #15
expert in tautology
diyAudio Member
 
bear's Avatar
 
Join Date: Apr 2002
Location: New York State USA
I don't see a 1:1 correspondence between tubes and transformers... wondering if there are solid state devices doing amplification?

_-_-bear
__________________
_-_-bear
http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- [...2SJ74 Toshiba bogus asian parts - beware! ]
  Reply With Quote
Old 14th December 2012, 02:39 AM   #16
freax is offline freax  Australia
diyAudio Member
 
freax's Avatar
 
Join Date: Sep 2007
Location: NSW
If I ever win the lottery I'll ask you to build me a pair of them...

Bravo sir, Bravo.
__________________
"It seems that perfection is reached not when there is nothing left to add, but when there is nothing left to take away" - Antoine de Saint Exupéry
  Reply With Quote
Old 14th December 2012, 03:01 AM   #17
12B4A is offline 12B4A  United States
diyAudio Member
 
12B4A's Avatar
 
Join Date: Aug 2012
Location: Right here, on this screen
I see some covers in the background. That's going to look pretty sleek when they are on. Are those ducts on the front outlets for fans? I'm not seeing a whole lot of ventilation elsewhere on the chassis.
  Reply With Quote
Old 14th December 2012, 07:37 AM   #18
diyAudio Member
 
dimkasta's Avatar
 
Join Date: May 2010
Location: Athens
Good to see these things finally getting finished. They look awesome!!! Nikos has been raving about them for some time now
I m really curious how they will perform with his big Jadises
  Reply With Quote
Old 14th December 2012, 04:14 PM   #19
Cassiel is online now Cassiel  Libya
diyAudio Member
 
Cassiel's Avatar
 
Join Date: Sep 2004
Location: Madrid
I think the word exotic applies well here:

2. Intriguingly unusual or different; excitingly strange

I can see a LOT of work there, and nicely done. Congrats.

Love the rectifiers. I don't understand the need for all those transformers but that is another matter.
__________________
Effeminate Audio
  Reply With Quote
Old 14th December 2012, 04:22 PM   #20
cotdt is offline cotdt  United States
diyAudio Member
 
Join Date: Oct 2005
Send a message via AIM to cotdt
Quote:
Originally Posted by bear View Post
I don't see a 1:1 correspondence between tubes and transformers... wondering if there are solid state devices doing amplification?

_-_-bear
I think some of those transformers are chokes, and others are to power the rectifier filaments. When you have your own transformer winding machine and can produce whatever you need on demand, you have more options.

A high power SET amp will necessarily be heavy. They are usually split into multiple units, like having the power supply in its own enclosure. I designed a yet-to-be-built GM70 amp that would weigh about the same, but is split into 3 units. Personally, I think the weight of this amp is actually reasonable for a Class A single-ended amp of this power level, be it tube or SS.

It's cool. Guests at the house always inquire about the big SET amp with bulbs that glow brightly (mercury vapor rectifiers and GM70 thoriated filaments). It's always a good opportunity to show them your favorite music played through them. Breathtaking sound. Nobody ever asked about that small, efficient 400W Hypex amp sitting in the corner. That one was an exercise in pure practicality and accurate reproduction, but it never gets used these days.

Last edited by cotdt; 14th December 2012 at 04:33 PM.
  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 on designing full DHT SET power amplifier milen007 Tubes / Valves 56 11th August 2011 09:38 PM
An Exotic ClassA Amplifier (never seen before). ontoaba Solid State 8 10th February 2011 08:59 AM
FS: DX Blame MKII amplifier set + power supply + heatsinks supernet Swap Meet 5 29th November 2010 10:33 PM
exotic product ... exotic price Pocoyo Swap Meet 73 20th June 2010 01:44 AM
Iron set for Paraglow (2A3) SET amplifier Alain Favret Swap Meet 1 19th March 2004 06:23 AM


New To Site? Need Help?

All times are GMT. The time now is 04:17 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