38S thumping Continued

---------

From: Bradley S. Mitchell (bmitchel@kodak.com)
Date: Thu Feb 13 1997 - 01:00:57 EST


As Dave has stated , it appears that the
thumper is inherant with the 4066. I started re-thinking the
whole problem.

        What we have control over are the inputs ,
controls, outputs, and the supply.

        Now, we've been fiddling with the inputs,
outputs, and controls, what's left?

        Supply. hmm . let me think here. we're switching
very low level signals around the 4066 switch,
and the rail is 8v. hmmm, can we reduce the thump, by
reducing the rail on the switch?
        Just a thought, but do we really need 8V swing to
get the signals throught he switch? But then the control signals
would have to be modified for level..
Just some thoughts that were wandering in my mind. I really
don't have much experience with these 4066's ,but am curious
about the effects of the large swing to control the small signal.

        73 Brad WB8GGG


Search QRP-L Archives

[ QRP-L Archive | ]
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 ]

---------

This archive was generated by hypermail 2b29 on Fri Jun 02 2000 - 11:32:59 EDT

kd4ab@kd4ab.org