Looking at the trace again I think the schematic of the "stucture" part is wrong as Thimotti might also have implied.
If you look here:
- struct cutoutpng.png (16.08 KiB) Viewed 3732 times
Structure switching
You see that first off it is a DP3T (on-on-on) and
not a SP3T (on-off-on). In the left position it would use both the 1n270 and 2n7000, in the center position the 1n270 combined with the LED's would be used and in position 3 only the LED's are used. You can see in the picture showing the sides of the switches that I'm right about the on-on-on part.
Structure capacitor
I also see that there is a small cap C1 in series with pin 2 of the "structure" switch. It looks like this is the mentioned 47n. If so, I made a wrong comment in the post above. I do not see the mentioned 47n go to ground so I think that it might be a mistake in the schematic.
Anyone able to confirm? Can anyone also confirm the actual value of 47n?
Looking at the first schematic of saruman on
page 1 I see that it is drawn correct there, but saruman changed it in his next drawing to match the COT50 I guess.