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6KG6-EL509-EL519 Schematics wanted
6KG6-EL509-EL519 Schematics wanted
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Old 7th March 2009, 05:33 PM   #1
Kagliostro is offline Kagliostro  Italy
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Question 6KG6-EL509-EL519 Schematics wanted

Hi friends

I'm looking for guitar and/or bass amps schematics

using this tubes 6KG6 - 6KG6A - EL509 - EL519 - PL509 or other corresponding tubes (also if with different filament voltages)

I find out only

Traynor YBA-3A custom special (4 x 6KG6A)

and one not better specified APX 100 (2 x PL509)

can someone help me and give links to other guitar or bass amp using this tubes ??


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Old 7th March 2009, 07:45 PM   #2
Bandersnatch is offline Bandersnatch  United States
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I am suprised you found that one. Use of the big TV sweeps in audio amps is rather uncommon. In your case, the guitar amp front stages will graft onto a suitable power stage; they don't particularly care what they're driving... So design a stage to run the valves as pentodes with well regulated( and much lower than B+ ) screen supply.
the Tnuctipun will return
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Old 8th March 2009, 09:07 AM   #3
Sch3mat1c is offline Sch3mat1c  United States
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This can use 6GK6 et al. Warning: parts values untested.

Seven Transistor Labs, LLC
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Old 9th March 2009, 01:59 AM   #4
sorenj07 is offline sorenj07  Germany
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Originally posted by Sch3mat1c
This can use 6GK6 et al. Warning: parts values untested.

What in tarnation is that a schematic of??
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Old 9th March 2009, 02:30 AM   #5
Tubelab_com is offline Tubelab_com  United States
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Looks like a class D (digital) audio amp using vacuum tubes to me.
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
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Old 9th March 2009, 05:56 AM   #6
korneluk is offline korneluk  United States
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Yes indeed - it is in fact a class D tube amp. Here's the circuit description:

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