SC/Jaycar kit-Maxie's mods advice wanted

Working properly now, i´ve replaced the regulator 7805 for an 7806, i´ve removed the speaker and i´ve conected the theremin to an amp. Now i just want to change the sound a little bit, please help me Thierry, thank you so much .....

I'd like to know about the difference between the article and circuit diagram on Max's Jaycar mods, too.

The article says "a 100 k trimpot in series with the 0.1 uF capacitor", but the circuit diagram has a 10k trimpot in series with a 1uF cap.

I've searched the forum and can't find an answer, any advice?

The time constants of both variants (100k/0.1uF and 10k/1uF) are identical. So you may decide on what you find.

Great thanks:)

The 10k pot in the original Jaycar kit is logarithmic, so would I be right to assume that the trimpots mentioned in Max's mods are also logs?

I have an old jaycar theremin, well from the jaycar design but built from scratch, with some of the mods mentioned in this forum. It is not a great instrument but playable. I was exited when my neighbour siad he had the new MKII Jaycar (2009 project) I have put it together and it seems OK so far. However when I put the lid on the volume gradually drops away. It looks like a bad design having the speaker magnet so near the coils. Has any one seen this problem? Does anyone have any comments on the MKII design?