hello david,

as far as i know the range of the theremin can be improved
when using bigger antennas. also there should be a trim poti
on the pcb, if you have problems with the offset.

good luck with your exhibition :-)

best wishes

ingo


--- In Doepfer_a100@yahoogroups.com , David Salter <david.salter@r...>
wrote:

> Ingo,
>
> Interesting. I'll try that.
>
> I purchased them for a gallery exhibition I'm doing, the idea to

mount

> the aerial's on mic stands so that visitors interact with the

piece, I

> don't think that they will have the range though, as you have to get
> very close before causing an effect.
>
> Thanks for the advice.
>
> regards
>
> David
>
> -----Original Message-----
> From: selfoscillate [mailto:synaptic_music@y...]
> Sent: 09 February 2004 12:18
> To: Doepfer_a100@yahoogroups.com
> Subject: 1 Re: Finally got my new modules
>
>
>
> hello david,
>
> i have an a178 theremin, but i don't use it often.
> it looks like my a178 needs some time to warm up or something
> like that. i'm not able to adjust the cv offset to zero

voltage

> until i wait for about 15 minutes, after the the antenna was
> plugged in.
>
> best wishes
>
> ingo
>
>
>
> --- In Doepfer_a100@yahoogroups.com , David Salter
> <david.salter@r...>
> wrote:
> > At long last I have finally received my A107, A149-1 and

A196.

> >
> > Early impressions are good on all three. Much more
> experimentation
> is
> > needed though.
> >
> > At the same time I purchased a pair of A178 Theremin

modules.

> >
> > These are very twitchy. I put a basic set-up together to

test,

> A178
> a >
> > VCO>VCA and A178 b > VCA.
> >
> > Apart from the fact that I will probably have to invert the
> VCA
> > controller so that it is quieter as you move nearer the

aerial

>
> instead
> > of the other way round as it is by default.
> >
> > I have found that the offset control on both only has a
> practical
> range
> > between 4.5 and 5.5. Anything else and either I get a

voltage

> that
> > pushes the VCO outside the audio range or in the case of the
> VCA
> > controller the audio is always on or off regardless of hand
> positioning.
> >
> > Any thoughts from the Theremin users out there
> >
> > BTW my aerials also do not stay in a horizontal position (as
> in a
> > previous thread) I'll see if I can tighten the socket
> terminals a
> bit.
> >
> > Regards
> >
> > David
> >
> >
> >
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