Photo Gallery - Page 285 - 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 23rd April 2010, 04:25 AM   #2841
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Quote:
Originally Posted by astouffer View Post
Dummy load in an old SCSI drive case.
Grand Pris is yours!

I prepared it today for tomorrow's experiment called "Wavebourn Surprise". It will be some very crazy hybrid design. I need it to be able to dissipate about kilowatt on 16 Ohm.
Attached Images
File Type: jpg equivalent2.jpg (154.8 KB, 1578 views)
__________________
"Our youth [...] have bad manners, contempt for authority; they show disrespect for their elders, contradict their parents, [...] and tyrannize their teachers.” -- Plato, 447-367 BCE
  Reply With Quote
Old 23rd April 2010, 05:12 AM   #2842
diyAudio Member
 
Join Date: Aug 2008
it's on!
  Reply With Quote
Old 24th April 2010, 06:38 AM   #2843
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
yesterday i got a pair of column shape 6P3P.i compare them with the old calabash shape 6P3P.i like the column.
from my eye view,they are same core,same age made by shuguang factory of china 1971.
Attached Images
File Type: jpg 2x6p3p.jpg (97.2 KB, 1475 views)
File Type: jpg 6p3p-running.jpg (41.2 KB, 1364 views)
  Reply With Quote
Old 24th April 2010, 07:34 AM   #2844
diyAudio Member
 
Join Date: Aug 2008
that will get hot, hot, hot....
  Reply With Quote
Old 24th April 2010, 11:07 AM   #2845
diyAudio Member
 
Join Date: Aug 2008
what are you going to burn off in that?
are you building a tube amp with 1kW output power?
I built one with 1kW supply power, that's already frightning...
good luck!
  Reply With Quote
Old 25th April 2010, 12:00 PM   #2846
diyAudio Member
 
Join Date: Aug 2008
Default SE OTL 6EM7 headphone amp

just finished my first head phone amp.
Cathode follower. DC coupled.
Sounds marvelous!!
Took me a long, long, long time to get rid of all the humm.
Now it's perfectly clean though.
Had to rectify and ground (thanks Jörg) the heaters of the 6EM7's, something I'd never needed to do before.
And put some transformer metal above and below the mains transformer.
The sides are going to be a bit different, 25mm black Acryl and the thransformer cover still needs to be done.

if anyone's interested in buying one... or the diagrams...
let me know
Attached Images
File Type: jpg DSC_0006-7.JPG (153.5 KB, 1299 views)
File Type: jpg DSC_0007-5.JPG (156.9 KB, 1238 views)
File Type: jpg DSC_0009-5.JPG (126.0 KB, 363 views)
  Reply With Quote
Old 25th April 2010, 05:58 PM   #2847
diyAudio Member
 
Steve Cresswell's Avatar
 
Join Date: Apr 2006
Location: Yorkshire UK
Here's an amp I have just completed.

It is a single-ended amp based on the British 13E1 beam tetrode.

The 13E1 is triode strapped and is driven by a 6EM7 twin dissimilar triode combination.

The front end gain is high as I was considering incorporating a degree of feedback into the design, but the amp sounds so good without it that I am wondering if it is worth bothering with feedback now.

Output transformers are from the UK Majestic Transformer Company and are gapped for 200mA. Impedance is 1K25 into a 4ohm load.

Excellent output transformers they are too

Click the image to open in full size.
  Reply With Quote
Old 25th April 2010, 06:12 PM   #2848
adamus is offline adamus  United Kingdom
diyAudio Member
 
Join Date: Apr 2008
looks fantastic, i have been following the build on audio talk. - nice little forum.
  Reply With Quote
Old 25th April 2010, 11:42 PM   #2849
diyAudio Member
 
gabrielbecheanu's Avatar
 
Join Date: Jun 2006
Location: Constanta
Send a message via MSN to gabrielbecheanu Send a message via Yahoo to gabrielbecheanu
Hi
I have just completed my amp too.
A 20W SE Class A amplifier with 6C33C. I love it.
Attached Images
File Type: jpg IMGP8832.jpg (160.3 KB, 472 views)
File Type: jpg IMGP8833.jpg (115.2 KB, 411 views)
File Type: jpg IMGP8837.jpg (200.7 KB, 393 views)
  Reply With Quote
Old 26th April 2010, 01:30 AM   #2850
digi01 is offline digi01  China
diyAudio Member
 
digi01's Avatar
 
Join Date: Mar 2003
Location: BEIJING
Send a message via MSN to digi01
very nice 6c33c building.even better than brand!
  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 08:07 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