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Question about the neon lamp VCO

Question about the neon lamp VCO

2007-03-19 by kidkrazy58

I was wondering about the neon lamp vco on www.uni-born.de the synth r
us site. In the schematic youll notice it has two 12ax7 tubes. BUt i
know that the 12ax7 is a twin tube so is there any reason that it has
to have two seperate tubes?
Im not sure if ken has this vco on his site. if i had a thryton id
make that one but i dont.
Oh and any one looking for alotta great tube schematics you should
totaly check out the tubesynthdiy group its filled with good
information.
Thanks

Re: Question about the neon lamp VCO

2007-03-19 by laxt57@aol.com

Hi
I may be confused, but I think it is only one tube, it is only
drawn as if there were two separate triodes. This is typical convention
with valve(tube) schematics.Jeri


-----Original Message-----
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From: andrewxx58@...
To: cgs_synth@yahoogroups.com
Sent: Mon, 19 Mar 2007 6:22 AM
Subject: [cgs_synth] Question about the neon lamp VCO


I was wondering about the neon lamp vco on www.uni-born.de the synth r
us site. In the schematic youll notice it has two 12ax7 tubes. BUt i
know that the 12ax7 is a twin tube so is there any reason that it has
to have two seperate tubes?
Im not sure if ken has this vco on his site. if i had a thryton id
make that one but i dont.
Oh and any one looking for alotta great tube schematics you should
totaly check out the tubesynthdiy group its filled with good
information.
Thanks



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Re: Question about the neon lamp VCO

2007-03-20 by kidkrazy58

Yeah see thats what i had figured but then he labled each one vlalve
one and valve two, it just threw me off. like maybe its for
stability issues or ome kinda capasitiance thats tryig to be avoided
or something of the sort. I guess if you and most people think its
just one tube ill make it like that, I cant waite to hook it up with
my tube filter!!!!!
Show quoted textHide quoted text
--- In cgs_synth@yahoogroups.com, laxt57@... wrote:
>
> Hi
> I may be confused, but I think it is only one tube, it is only
> drawn as if there were two separate triodes. This is typical
convention
> with valve(tube) schematics.Jeri
>
>
> -----Original Message-----
> From: andrewxx58@...
> To: cgs_synth@yahoogroups.com
> Sent: Mon, 19 Mar 2007 6:22 AM
> Subject: [cgs_synth] Question about the neon lamp VCO
>
>
> I was wondering about the neon lamp vco on www.uni-born.de the
synth r
> us site. In the schematic youll notice it has two 12ax7 tubes. BUt
i
> know that the 12ax7 is a twin tube so is there any reason that it
has
> to have two seperate tubes?
> Im not sure if ken has this vco on his site. if i had a thryton id
> make that one but i dont.
> Oh and any one looking for alotta great tube schematics you should
> totaly check out the tubesynthdiy group its filled with good
> information.
> Thanks
>
>
>
>
_____________________________________________________________________
___
> AOL now offers free email to everyone. Find out more about what's
free from AOL at AOL.com.
>
>
> [Non-text portions of this message have been removed]
>

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