Peter L. Peres wrote:
>
> In CMOS parlance:
>
> Vss = Vcc = + a few volts
> Vdd = GND = gnd
> Vee = -Vcc = - a few volts

In National Semiconductor parlance for the CD4051BM,
" For example, if Vdd=5V, Vss=0V and Vee=-5V, analog signals from -5V to
+5V can be controlled by digital inputs of 0-5 V.

For historical reasons, the source and drain nomenclature refers to
electron flow. Vdd corresponds to Vcc. Vss is at a correspondingly lower
level.

again, with the National CMOS databook in front of me, the CD4xxx family
suggests 3 to 15V for the supply voltage (Vdd).


put 15V on Vss, 0V on Vdd, call Digikey, order new parts.