schematics for a EL509/ EL519 PP amp needed - diyAudio
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Old 13th December 2002, 05:28 AM   #1
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Default schematics for a EL509/ EL519 PP amp needed

Hello,

I was origionaly going to biuld a stereo SE el509 amp, but decided that i would like to build a PP amp instead. I can't seem to find ny el509 pp schematics. Any one know where i can find one? I dont want anything toooo complicated, i dont need ballanced inputs, and dont want OTL schematics, as i only have 4 of these tubes.

--Tom
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Old 13th December 2002, 10:31 AM   #2
dhaen is offline dhaen  Europe
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Try searching also for schematic +

PL509
EL519
EL519
KT90

All are similar,
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Old 13th December 2002, 02:06 PM   #3
Colt45 is offline Colt45  Serbia
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6P45S is pretty close too.
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Old 13th December 2002, 02:07 PM   #4
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Default Hifi News has got one...

designed by Tim de Para... I can scan it for you if you like..
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Old 13th December 2002, 02:14 PM   #5
dhaen is offline dhaen  Europe
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Bas,

Is that the "enhanced triode" one? Where the signal is input to G2?

Cheers,
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Old 13th December 2002, 02:15 PM   #6
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Yes, but I just realized ....that it is a SE amp and not PP...

:-(
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Old 13th December 2002, 02:16 PM   #7
Colt45 is offline Colt45  Serbia
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I searched around, and I can only seem to find SE

If I get bored enough I might draw up a AB scheme after school
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Old 13th December 2002, 02:21 PM   #8
JohnR is offline JohnR  Australia
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There's one in Bruce Rozenblit's second book... if you don't mind a 700V plate supply...!

JohnR
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Old 13th December 2002, 02:32 PM   #9
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Quote:
Originally posted by dhaen
Try searching also for schematic +

PL509
EL519
EL519
KT90

All are similar,
I'm not sure a circuit for the KT90 will work well with the EL519 or vice versa as they are not similar tubes according to EveAnna Manley.

http://db.audioasylum.com/cgi/m.pl?f...ey&r=&session=

Just FYI

I'd like to try some KT90s one day. They have an excellent reputation and are $US140/matched quad
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Old 13th December 2002, 04:07 PM   #10
dhaen is offline dhaen  Europe
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Quote:
I'm not sure a circuit for the KT90 will work well with the EL519 or vice versa as they are not similar tubes according to EveAnna Manley.
Thanks Brett, I stand corrected.
Now how did I get that misconception
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