[sdiy] 4-terminal MOSFETs

[David G Dixon]

> It's too damn bad, because this is the only way I can think 
> of to make a resettable bipolar integrator (short of using a 
> large-voltage analog switch
> -- I guess that's just what I'll have to do).

Actually, I think the DG418 is what I'm looking for.  It's a single SPST
high-voltage analog switch in an 8-pin package with fairly low on
resistance, which is widely available and reasonably cheap.