[sdiy] Adding CA3140 to archive...

[Ian Fritz]

At 09:33 AM 1/4/06, Harry Bissell Jr wrote:
>The 3140 is useful for applications where you want a really, really
>high input impedance... mainly S/H  or inregrator applications..

Yes!  Still in production and available for <$1 from ElectronicGoldmine, 
Jameco and Mouser.  Great bang for the buck.

Electronic Goldmine has them for $.45 and they also have CA3083 for 
$.60.  The 3083 is still my favorite for NPN expo converters (use 
transistor #3 for HF tracking).  Low Re and very good matching.  Stock up 
on these, folks.

   Ian