Doepfer

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: [Doepfer_a100] 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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