Photo Gallery - Page 456 - 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 25th December 2012, 12:01 PM   #4551
diyAudio Member
 
Triodethom's Avatar
 
Join Date: Dec 2009
Location: Newnan GA
Quote:
Originally Posted by stenak View Post
Please, post the schematic!
Merry christmas to all you DIY,er....
Here in Norway we have 8 degrees below zero(celsius), and snow.....
Here it 14 c foggy and a Merry Christmas to you.
  Reply With Quote
Old 25th December 2012, 01:13 PM   #4552
diyAudio Member
 
yagoolar's Avatar
 
Join Date: Oct 2004
Location: Mazowieckie, Jozefoslaw
Send a message via ICQ to yagoolar Send a message via Skype™ to yagoolar
Quote:
Originally Posted by fotios View Post
Three stage, 300B/c parallel single ended - no feedback - monoblock 22 Watt RMS power amplifier with DC stabilized tube heaters. Output hum/buzz noise -64dBV/100Hz max (measured with the FFT analyzer of my very strict Hameg DSO, so hope is enough!) at 4Ω load with or without shorted input.
Nice one! Congrats.
  Reply With Quote
Old 25th December 2012, 04:07 PM   #4553
Reegal is offline Reegal  Italy
diyAudio Member
 
Join Date: Feb 2007
Location: Como lake
Default My last tubes amplifier with 300B

Here my last creation, 300B psvane in s.e.
Tubes power supply with 3B28 , hand made transformers including the output transformers. Vu meter made with EM83
Cabinet is made in solid walnut musical instruments wood and the top is made in ragged marbled wood with teak inserts, all are machined with CNC milling machine.
Marry Christmas
Attached Images
File Type: jpg PIC00836.JPG (375.1 KB, 1108 views)
File Type: jpg PIC00839.JPG (350.0 KB, 1052 views)
File Type: jpg PIC00838.JPG (321.2 KB, 986 views)
  Reply With Quote
Old 25th December 2012, 06:39 PM   #4554
M Gregg is offline M Gregg  United Kingdom
diyAudio Member
 
M Gregg's Avatar
 
Join Date: Jun 2010
Location: UK
Reegal,

I always find your amps an inspiration. The wood work and layout is always exceptional..well done as usual..

Regards
M. Gregg
__________________
What is the sound of one hand clapping?
  Reply With Quote
Old 26th December 2012, 05:58 AM   #4555
Gost22 is offline Gost22  Bolivia
Banned
 
Join Date: Sep 2012
Location: San Ignatio de Velasco
Quote:
Originally Posted by stenak View Post
Please, post the schematic!
Merry christmas to all you DIY,er....
Here in Norway we have 8 degrees below zero(celsius), and snow.....
Hi
Here is the schematic-create preamp and enjoy his sound!
Cheers!
Attached Images
File Type: jpg Tube preamp with 6JD8 (ECC88 or 6922) 2.jpg (374.2 KB, 939 views)
  Reply With Quote
Old 26th December 2012, 09:29 AM   #4556
Gost22 is offline Gost22  Bolivia
Banned
 
Join Date: Sep 2012
Location: San Ignatio de Velasco
Quote:
Originally Posted by mhouston View Post
Here is my third build of the Super Simple Single Stage tube preamp: 4S The Black. This is based on a 12AU7 Silver Dragon. Much modified values and slightly modified schematic. 24VAC wall wart runs a tranni backwards inside to produce 280VDC. Solen output caps. All component-2-component wiring and DC heaters. No hook-up wire in amp section. Silver solder and Alps blue velvet pot on the output.

The best sounding so far. One more differeent one to make which will support with no modification all 12Axx tubes - true plug and play.
Hi mhouston!
Please show the schematic to preamp 4S with tube/valve 12AU7 (ECC82) .
thank you!
  Reply With Quote
Old 26th December 2012, 11:35 AM   #4557
diyAudio Member
 
mhouston's Avatar
 
Join Date: Jan 2006
Location: Victoria, Australia
Quote:
Originally Posted by Gost22 View Post
Hi mhouston!
Please show the schematic to preamp 4S with tube/valve 12AU7 (ECC82) .
thank you!
4S Universal:
Attached Images
File Type: jpg %22Universal%22 Preamp Stage.jpg (67.8 KB, 857 views)
  Reply With Quote
Old 26th December 2012, 07:01 PM   #4558
diyAudio Member
 
Robert Kesh's Avatar
 
Join Date: Oct 2012
I got the B+ and the heater supply mixed up.

Click the image to open in full size.
  Reply With Quote
Old 26th December 2012, 08:32 PM   #4559
diyAudio Member
 
mhouston's Avatar
 
Join Date: Jan 2006
Location: Victoria, Australia
Quote:
Originally Posted by Gost22 View Post
Hi mhouston!
Please show the schematic to preamp 4S with tube/valve 12AU7 (ECC82) .
thank you!
Gost22 This is not the "Black" schematic. If you want that I will post it too. They are slightly different.
  Reply With Quote
Old 27th December 2012, 05:27 PM   #4560
Reegal is offline Reegal  Italy
diyAudio Member
 
Join Date: Feb 2007
Location: Como lake
Quote:
Originally Posted by M Gregg View Post
Reegal,

I always find your amps an inspiration. The wood work and layout is always exceptional..well done as usual..

Regards
M. Gregg
Thank you Gregg,
I love tubes and wood and I always try to do my best to match them with my ideas.
Next will be an amplifier with 205 tubes.
All the best
Guido
  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 12:34 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