829 or GU-29 audio amplifier schematics? - diyAudio
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Old 2nd February 2007, 02:13 PM   #1
AcidEye is offline AcidEye  Netherlands
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Default 829 or GU-29 audio amplifier schematics?

I'm looking for audio amplifier schematics using 829 or GU-29 tubes. After searching this forum, no schematics of my "taste" could be found for these tubes... The following interesting schematic was found for the little brother of the 829, the 832:

http://www.audiohobbyist.com/projects/832.htm

Does anyone have a comparable schematic for an amplifier with the 829 or GU-29 tube (more output than 832)? SE schematics are also welcome!

Kr,

Martin
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Old 2nd February 2007, 05:15 PM   #2
Zibi is offline Zibi  Poland
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http://f23.parsimony.net/forum45451/messages/188890.htm
http://audioportal.ru/amplifiers/p2_articleid/52
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Old 3rd February 2007, 11:33 AM   #3
AcidEye is offline AcidEye  Netherlands
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Thanx!

These schematics are new for me, maybe I should start searching with Russian characters :-)

Today, I've located the sockets for these tubes at an affordable price, it will take some time before I've located all parts for a complete amp.
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Old 3rd February 2007, 12:00 PM   #4
Zibi is offline Zibi  Poland
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http://images.people.overclockers.ru/54442.jpg
http://people.overclockers.ru/digiandr/gallery
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Old 3rd February 2007, 12:37 PM   #5
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Default Coldwar

You might want to take a look at

www.ultranalog.com

coldwar.

You will find a lot of usefull info there.
I build this fine sounding amp some years ago.

Regards
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Old 3rd February 2007, 02:45 PM   #6
Zibi is offline Zibi  Poland
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http://www.world-designs.co.uk/forum...ead.php?t=1532
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Old 3rd February 2007, 03:41 PM   #7
AcidEye is offline AcidEye  Netherlands
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For those who are interested in amplifiers with these kind of tubes, I've found a nice project with a tube comparable to the 829 on Jogis page:

http://www.jogis-roehrenbude.de/Lese...29-SE/3E29.htm

For this SE amplifier, the JAN 3E29 tube is used (which is mentioned to be similar to the 829).
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Old 3rd February 2007, 06:21 PM   #8
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This is a nice 829B amp.

http://www.pmillett.com/829b_amplifier.htm

I have the tubes en sockets all ready
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Old 4th February 2007, 06:01 PM   #9
adalin is offline adalin  Sweden
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Saw this thread on friday and thought for myself, this I must try

I built a prototype today and I find it quite interresting I must say, the first thing I notised was that the amp is completely noiseless.

When I started the first channel to test it I thought it didnt work, there was no hum or fiss in my speaker. Then I turned the sinusgenerator on and sure, there was sound

I havent meassured dist and outputpower yet but there is potensial in this tube, I will build one in a real chassi, thats for sure

Got a bad pic from the prototype, I got no real camera so no closeups

tubeamp
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Old 5th February 2007, 09:26 AM   #10
AcidEye is offline AcidEye  Netherlands
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Hi Adalin,

The results from your prototype sound very promising!

Did you use the 829/GU-29 or the 832/GU-32 tube for this setup? What schematic and operating voltage are you using?

Please keep us informed on your project and findings, I like the concept of using unusual tubes for audio applications :-)

Kind regards,

Martin
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