I don't understand the circuit. Can you give a www url or other link
to a more detailed circuit.

Or, post a gif or pdf in abse please.

I do not need a wide frequency shift, so the 1/2 of Vcc limit might be
ok.

Thanks,

A



How about using a CD4053 as the inverters in a CMOS oscillator.


X1
+5V---O
--------
GND--O !
Y1 .X0 !
GND----O . !
----/\/\--------+---!!----+
VC------O !
.Y0 !
.---------------------------


Something like this is what I have in mind. The CD4053 has some problems
when you use it in an oscillator. The output tends to have a glitch in it
as it switches. You may have to put an extra cap to ground at the control
input of the X1 section.

The range of VC is fairly restricted because it must be above about 1/2Vcc
to get any oscillation at all.


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