[sdiy] Tube ring mod

[John L Marshall]

Isn't the 4CX15000A only a tetrode? Not too good for really linear.

No tube patents either. A lenticular mirror for light bulbs is as close as I
can get.

Take care,
John
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Pacific Northwest Synthesizer Meeting
August 9, 2003
www.sound-photo.com
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----- Original Message ----- 
From: "Magnus Danielson" <cfmd at swipnet.se>
To: <metasonix at earthlink.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, June 14, 2003 2:58 PM
Subject: Re: [sdiy] Tube ring mod


> From: "metasonix at earthlink.net" <metasonix at earthlink.net>
> Subject: Re: [sdiy] Tube ring mod
> Date: Sat, 14 Jun 2003 14:11:03 -0700
>
> > >>Try decaf.
> > > Who ate all my choclate-covered coffie beans that I leaft in the
fridge???
> >
> > Ah hahahahahaha!
>
> I think I have found the guilty one ;O)
>
> > > Magnus - who still is in the "one day I will do something with tubes"
state
> >
> > Give it a try, Magnus.
> > It's much more challenging than calculating Ebers-Moll transistor models
> > (a subject which was, I suspect, beaten to death by 1970).
>
> I just might, I just might... ;O)
>
> > Be the first person on Earth to do certain things! I've never seen
> > an EFP60 secondary-emission pentode used as am audio modulator, for
example!
> > (that's a hint)
>
> Um... I don't HAVE a EFP60 tube around... you've got a datasheet
anywhere???
>
> But sure, I am sick enought to come up with unique ways of (ab)use of
tubes...
> I think you know me in that respect... ;O)
>
> Pentodes as such really seems my preferred tube for linear stuff. Toss in
> another grid for multiplicative stuff... right? ;O)
>
> Maybe I should start of with a Svetlana 4CX15000A tube? Or should I go
straight
> for a TWT or a MSDC Klystron?
>
> Cheers,
> Magnus - who's registered patents so far do not include a single
tube-curcuit
>