Doepfer

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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