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Old 11th November 2011, 11:59 AM   #1
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Default Monsters thread (high power tube amps)

I would like to make a list of high power tube amps.

1000w guitar
Champ 1000 Watt Tube Amp

833a SE
833a Amp - World-Designs-Forum

any others? (i know..there are alot more others..so bring them on)
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Old 11th November 2011, 12:11 PM   #2
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Hi!

Mine is yet to be built, with the tube in my avatar,
160W from a 851 in SE.

Thomas
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Old 11th November 2011, 12:11 PM   #3
timpert is offline timpert  Netherlands
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The Philips EL6471 seems to qualify...
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Old 11th November 2011, 12:42 PM   #4
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Quote:
any others? (i know..there are alot more others..so bring them on)
I have posted this before, but you asked for it.....

I built this as an experiment. It existed for about a week or so before I tore it down since it took up the whole work bench, used all the available line (mains) power (blowing the breaker twice) and could cause death, fire or explosion at any moment.

It put out about 200 watts using an 833A running on 1500 volts idling at 275 mA.

The 833A SE Amp Prototype
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File Type: jpg LesPaulTest1c-2.jpg (314.7 KB, 819 views)
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Old 11th November 2011, 01:05 PM   #5
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You could build this one: http://www.audiophool.cjb.net/Misc/3Kpdf.pdf
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Old 11th November 2011, 01:31 PM   #6
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Forum member Pete Millett (pmillett) created a mild mannered push pull amp that made 18 WPC. I performed the Tubelab treatment on it and extracted 250 WPC or 504 watts cleanly and 525 watts at clipping with both channels paralleled. See posts 425 and 438 in this thread:

Posted new P-P power amp design
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File Type: jpg 504watts_A.jpg (207.4 KB, 787 views)
File Type: jpg 504_watts_scope.jpg (177.4 KB, 762 views)
File Type: jpg 504watts_board.jpg (291.7 KB, 772 views)
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Old 11th November 2011, 01:38 PM   #7
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uuu...some nice post i see here! NICE! Congrats!
I was talking with my winder today...and someone in romania will build a SE with this :|
Click the image to open in full size.

specs:
900v B+
300W
Double c-core OPT, around 30cm2

Last edited by rvrazvan; 11th November 2011 at 01:40 PM.
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Old 11th November 2011, 01:42 PM   #8
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by tubelab.com View Post
Forum member Pete Millett (pmillett) created a mild mannered push pull amp that made 18 WPC. I performed the Tubelab treatment on it and extracted 250 WPC or 504 watts cleanly and 525 watts at clipping with both channels paralleled. See posts 425 and 438 in this thread:

Posted new P-P power amp design
Are those 6lQ6 tubes in the output ...?
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Old 11th November 2011, 02:27 PM   #9
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Default Philips TB 3/1000 amplifier

Good afternoon DIYaudio-forum,

also already posted in a thread on this forum ( TB3/1000 is alive ! ("European 833A") ) is my amplifier.
It started as a 833A-amplifier (2 monoblocks with dedicated external powersupplies) but when i scored a stash of Philips TB 3/1000's i quickly changed to that triode instead.

Currently they run at 110 VDC / 240 mA. But what are numbers; it is the sound that is important !

Looking forward to see this interesting list grow....

Regards,
Reinout
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File Type: jpg IMG_3444.JPG (75.6 KB, 222 views)
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File Type: jpg IMG_5393.JPG (108.6 KB, 308 views)
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Old 11th November 2011, 02:53 PM   #10
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Quote:
Are those 6lQ6 tubes in the output ...?
The tubes in that picture are 35LR6's because I got 45 of them NIB at the Dayton hamfest for $4 each. 6LQ6 are far out of my price range for experiments like this.

Petes board seems to work well with any horizontal sweep tube that fits the socket, and even some that don't, with some creative rewiring. I have run dozens of tubes through the board but the 6LQ6 / 6JE6C isn't one of them due to the cost and relative scarcity.

I settled on a 6HJ5 build that made 125 WPC and posted it back into the original thread. Several builders have duplicated it with good results.

There will be some more big watt experiments in the future since I have a pair of 400 watt OPT's that need use.
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