JFETs and Moog Ladder Filters

[jh]

>What would a Moog Ladder low pass filter circuit look like if it used JFET
>transistors in stead of NPN transistors?  Could such a thing even be made?

I'm tempted to say it's a s hard as building a ladder filter with t*bes (;->).
I just don't see anything that coresponds to the exponential law of BJTs.
(Unless you connect source and drain and use them as diodes ...)

More on the serious side: You can use them as VC resistors in a
non-ladder configuration (with somewhat limited range, I guess).

> I may have access to some surplus JFETs.

How much are they ? Can't get enough of these if you want to select
them for a certain threshold voltage, or use them as matched pair.
Good BJTs are available in the 10 cents range, but it's hard to get
JFETs for less than 30cents (at least from my sources).

JH.