[sdiy] Theremin controller

[Paul Perry]

Perhaps dick around with the gain of U6, increasing it. 

Or you could try decreasing the capacitance at the base of the antenna and
the fixed oscillator, to get them both operating at a higher frequency, so
that the difference in frequency is more significant.
Or you could try making the 'antenna' a plate structure, or bendign it
double & actually pushing your hand in & out.

Now I can't guarantee that any of these will make any favorable difference -
but that's the desperate sort of thing I would be trying myself.

paul perry Melbourne Australia

-----Original Message-----
From: synth-diy-bounces at dropmix.xs4all.nl
[mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of RichR
Sent: Wednesday, 16 May 2007 10:31 PM
To: Synth-diy at dropmix.xs4all.nl
Subject: [sdiy] Theremin controller

Hi
Following the messages on the list in May about the digital theremin I
decided to build one.The theremin works but the arial range is restricted to
6 inches.
I've put a 68 MH inductor in series with the antenna but it made the
smallest difference.
Is there anything else I can try