Alternative tapping geometry for a SC

[Marco Pancaldi]

What do you think about a tapped SC with a inner "extension" coil wrapped before the "normal" coil?
The question is not new (I remember reading some from Mark Hammer, but I don't find it anymore).
The plus can be simpler switching, grounding the "tap" point without creating an external closed loop to the sounding "main" bobbin.
The minus: an internal coil take space (better to use AWG 43, maybe?) and the main coil can have less sensitivity.
Please comment as you want.
Thanks
m.p.

[Mike Sulzer]

If you ground the tap point, then at the same time you have to open the other coil wire that is grounded, or you load the circuit, and so I do not think the switching is simpler. (Maybe I misunderstand something?)

What do you think about a tapped SC with a inner "extension" coil wrapped before the "normal" coil?
The question is not new (I remember reading some from Mark Hammer, but I don't find it anymore).
The plus can be simpler switching, grounding the "tap" point without creating an external closed loop to the sounding "main" bobbin.
The minus: an internal coil take space (better to use AWG 43, maybe?) and the main coil can have less sensitivity.
Please comment as you want.
Thanks
m.p.

[Marco Pancaldi]

If you ground the tap point, then at the same time you have to open the other coil wire that is grounded, or you load the circuit, and so I do not think the switching is simpler. (Maybe I misunderstand something?)

I'm not sure if the working coil is loaded: the inner coil is simply grounded on both ends...in this case the question is if an INTERNAL closed-loop coil can have effect on the external coil tone.
m.

[Mike Sulzer]

I'm not sure if the working coil is loaded: the inner coil is simply grounded on both ends...in this case the question is if an INTERNAL closed-loop coil can have effect on the external coil tone.
m.

Of course it can. You do not want a shorted coil.