Korg MS20 filters

[Haible Juergen]

	>This is likely, it would explain the bad S/N, same series of
products. Why
	>invent something new. Indeed, after doing my analysis of the MS50
	>filter it is quite clear that a diode ring is simply one
possibility
	>for creating a variable resistance. 

That's how I think about it, too. 
If I ever find the time, I'll build one with 10 diodes in series for each
of the original diodes in the ring. No more matching required (hopefully
...),
and SNR increased by 10dB (in theory).

	JH.