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Author Topic: Some of my tube tries....  (Read 1669 times)

azazello

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Some of my tube tries....
« on: March 07, 2010, 11:27:01 PM »
I like experiments! I like triodes, priority SE. My moto is: " Hi End is back proportional to the number of composite parts"!
For my tries I prepared box univ. PSU with rect. tube GZ34, two CLCRC channels, two output transformers Hammond 125FSE,
with ability to switch +U 220, 330v, and Ra /plate load/ 2,5 - 5 - 10 kohm.
Here are some my tries:

SE 6LR8 - Phillips TV tube triode-penthode. Univ. PSU is on the left side
http://picasaweb.google.bg/azazello52/DIY?authkey=Gv1sRgCJC-ptqGj4mYpAE#5251059328525417282

SE 1625 /triode mode/ & 6S4P....
http://picasaweb.google.bg/azazello52/DIY?authkey=Gv1sRgCJC-ptqGj4mYpAE#5279702006495029458

SE GU50 /triode mode/ & 6S4P...
http://picasaweb.google.bg/azazello52/DIY?authkey=Gv1sRgCJC-ptqGj4mYpAE#5248075728323175362

SE ECL82 - Telefunken triode- penthode...
http://picasaweb.google.bg/azazello52/DIY?authkey=Gv1sRgCJC-ptqGj4mYpAE#5279702327988567698

SE 30P1S & PCC88....
http://picasaweb.google.bg/azazello52/Miscellaneous#5441496717675804578

SE 6CH6 Brimar-Gr. Britain & 6S4P
http://picasaweb.google.bg/azazello52/Amplifiers#5258482409080153826

And SE 6C4C, 4P1L, 6Ф6С, 6AS7G, 6V6....

All they sound different nice.
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Hi end is back proportional to the number of composite parts!

rock4016

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Re: Some of my tube tries....
« Reply #1 on: March 09, 2010, 04:25:47 PM »
For your GU50 amp, did you run the output tube at 400V and 80 mA?  Do you have a schematic?
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azazello

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Re: Some of my tube tries....
« Reply #2 on: March 09, 2010, 05:17:47 PM »
Working mode of GU50 was 320v and 100 ma./My universal PSU give 330v max./
The best sound is with more 400v and 90 ma.
I will post schematic after 2 weeks...Tomorrow morning I fly to Holland, sorry!
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Hi end is back proportional to the number of composite parts!

rock4016

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Re: Some of my tube tries....
« Reply #3 on: March 09, 2010, 06:46:56 PM »
Ok, have fun and I'l check back in a couple weeks!
 ;D
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azazello

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Re: Some of my tube tries....
« Reply #4 on: May 21, 2010, 06:29:33 PM »
Sorry, rock4016,
I forgot...I'm confused about GU50......Instead 6C4P Youcan use 12 AT7, ECC85, 5687.....
http://picasaweb.google.bg/azazello52/KVM#5473756814778292834

Pot for bias is 100 kohm
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azazello

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Re: Some of my tube tries....
« Reply #5 on: March 04, 2011, 10:12:48 PM »
My "pocket" SE with audiophile tubes 6Ф3П /ECL82/ with strong bass and clear sound.
https://picasaweb.google.com/azazello52/Amplifiers#5580315473544989442
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azazello

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Re: Some of my tube tries....
« Reply #6 on: March 10, 2011, 06:54:21 PM »
My listening room. Hornes with Fostex FE 206E
Fro left to right on the shelf:
SE 6Ф3П, SE 2A3 RCA, OTL 6AS7, EL11 Telefunken, PP 6П3С - variant Leibowitz.
On the floor: PP 6005 - variant Leibowitz, SE 300B JJ, SE 6С4С, SE EL11 Tungsram.
https://picasaweb.google.com/azazello52/Amplifiers#5582500460015416338
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