FW: Texas Instruments IC's

[Tim Ressel]

Tony et al,

I concidered using a hexfet for that function. Ultra-low ON resistance, real
fast. OFF leakage?? Not sure. And you have to watch the ripple current on the
capacitor you are using. You can pull amps out of the cap if the switch
resistance is too low. A series resistance should fix, but then you limit
discharge time. Sigh...

(Soapbox mode ON)
Speaking of switch times, for allyou peoples wiring VCOs don't forget: that
discharge path is going to have some BIG current spikes on it! Run that path
directly to a star ground as far up the power chain as you can.
(Soapbox mode OFF)


Tim Ressel--Compliance Engineer
Hewlett-Packard
Verifone Division
916-630-2541  
tim_r1 at verifone.com                     



-----Original Message-----
From: Tony Clark [mailto:clark at andrews.edu]
Sent: Tuesday, May 30, 2000 9:36 AM
To: Synth-DIY
Subject: Re: FW: Texas Instruments IC's

   Of course there's always MOSFETs...maybe someone has a direct drop in 
replacement for a 466?  I'd love to know!

   Tony

------------------------------------,----------------------------------
I can't drive (my Moog) 55!         |     The E-Music DIY Archive
------------------------------------|  
Tony Clark -- clark at andrews.edu     | aupe.phys.andrews.edu/diy_archive
http://aupe.phys.andrews.edu/~clark |     Contributions welcomed!
------------------------------------'----------------------------------