Oh! Now I´v been in touch with Moog. They say it might be a tuning issue, and that I need to open the box of Etherwave and tune with the little red tool.Have anyone done this? And do you have further tips? This is the guide that they sent me:Tuning the Etherwave (10/22/19)[(1) Make sure the instrument is on a mic stand or on a wooden stool (the instrument is heavily infulenced by its surrounding)(2) Center the Pitch and Volume controls to 12 o'clock(3) Adjust L11 with the trimmer tool until you have your prefered volume range - The instrument should be silent with your hand close to the antenna and at full volume with your hand away from the antenna(4) Adjust L5 to set the high end of the instrument - Keep your hand about an inch away from the pitch antenna and adjust for the high freq(5) Adjust L6 to set the range - The pitch should be silent when you are arms length away from the instrument(6) Go back and forth between L5 and L6 unitl you have your desired range.(7) Screw the lid back on and Enjoy! (the calibration will be slightly off, but adjust the front panel Volume and Pitch controls to desired position)
From my understanding of the theremin the above is all wrong. They must not have listened to your sound byte and gave a generic answer. Even the answer for tuning an EWS is wrong in my opinion, do not touch L5 near the Pitch Antenna. I still go with my first idea that a mechanical issue is happening. Can you get this to happen by bumping the theremin or tapping on the wood box? A theremin will work without earth ground, just poorly. Disconnect from earth ground and see if you can get that sound to happen.
Christopher
