[sdiy] Passive Ring Modulator

[John L Marshall]

I really like the idea of a pair of 6AL5s. Look at the forward conductance.


Take care,
John
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Pacific Northwest DIY Synthesizer meeting, July 20, 2002
See: www.sound-photo.com
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----- Original Message -----
From: "Tim Ressel" <madhun2001 at yahoo.com>
To: "Theo" <t.hogers at home.nl>; <music.maker at gte.net>;
<synth-diy at dropmix.xs4all.nl>
Sent: Thursday, July 18, 2002 1:48 PM
Subject: Re: [sdiy] Passive Ring Modulator


> Um, er, uh, I dunno...
>
> I guess I was speaking from the standpoint of
> performance as a mixer, not as a sound thingie. I
> honestly don't know what would sound better. Just try
> whatever ya have laying around.
>
> Okay, now here is where I really 'mix' things up: how
> about a pair of 6AL5 diode pairs??? (heh heh)
>
> --TR
>
> --- Theo <t.hogers at home.nl> wrote:
> > Is only the forward drop of interest here?
> > Germanium diodes kind of "smoothly" come to
> > conductance.
> > The Scotty diodes you suggest switch quite abruptly.
> > Seems to me the smooth switching behavior of the
> > germanium diodes would be
> > better for the "sound" of the ring modulator.
> > Or am I completely off here?
> >
> > Theo
> >
> >
> >
> > From: Tim Ressel <madhun2001 at yahoo.com>
> >
> >
> > > Yo,
> > >
> > > You want to use matched diodes with low forward
> > drop.
> > > If I were making an RF mixer, I'd use a HSMS-282R.
> > > Here is the data sheet:
> > >
> > >
> >
> http://literature.agilent.com/litweb/pdf/5968-8014E.pdf
> > >
> > > They show a ring mixer app.
> > >
> > > --TR
> > >
> > >
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>
>
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