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Old 28th February 2005, 02:40 PM   #1
felixx is offline felixx  Romania
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Default Audio schematics for GU50 ????


What do you think about GU50?
Good caracteristics and power in audio hi-end amps. or cheap tube?
Better than EL34 or 300B? Schemes?
Thank's.
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Old 28th February 2005, 11:44 PM   #2
speaker is offline speaker  United States
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Default Re: Audio schematics for GU50 ????

Quote:
Originally posted by felixx

What do you think about GU50?
Good caracteristics and power in audio hi-end amps. or cheap tube?
Better than EL34 or 300B? Schemes?
Thank's.

Certainly one of the more interesting, mechanical-aspect, tubes out there. Certainly someone, somewhere has built with them and commented; anyone?

speaker
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Old 1st March 2005, 07:31 AM   #3
sajti is offline sajti  Hungary
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The GU50 gives nice 60W in class AB with 650V plate, and 300V screen, with same plate to plate resistance as the 807.

sajti
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Old 3rd March 2005, 09:24 AM   #4
wkopacz is offline wkopacz  Poland
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Default GU50 (rus. أس-50) amps

use google and search for GU50 or أس-50 amp
example: JOGIS
and more...

regards,wk.
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Old 3rd March 2005, 09:41 AM   #5
wkopacz is offline wkopacz  Poland
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Post and so on...

sorry, but russian letters.....
JOGIS

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Old 3rd March 2005, 10:57 AM   #6
sajti is offline sajti  Hungary
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It looks nice. I will put up some schematics next week. I have schematics for SE amp, and for PP amp with GU50.

sajti
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Old 4th July 2005, 09:53 PM   #7
beamnet is offline beamnet  Netherlands
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this is my go at a gu50 push pull

it is a modded kt88 schematic

sounds cool, but it's my first amp and have no reference...
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Old 25th January 2006, 09:15 PM   #8
beamnet is offline beamnet  Netherlands
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well, that was some time ago i posted.

For short, these ubes ROCK

the power they supply seems endless.

I have 150 watt rated speakers, and they buckle earlier than my pp 75watt amp!

Bas
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Old 25th January 2006, 09:53 PM   #9
Tweeker is offline Tweeker  United States
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Datasheet.

40 watts plate dissipation. 250V and 5 watts dissipation limits on grid 2.
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Old 26th January 2006, 12:54 AM   #10
beamnet is offline beamnet  Netherlands
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and these
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