dumbass semiconductor question

[tomg]

>>>closed switch, that opens when it receives a voltage.  I guess I'm just
>>>surprised that they don't make such a thing.
>>
>>They did...they just put 4 of them in one package it's called a CD4066.

>No, according to your diagram the CD4066 is normally open, not normally
>closed.

Picky Picky, I was just reacting to your statement..:) use two switches.

>(imagine I could also use another 1/4 4066 or a logic inverter in place of
>the NPN).

Exactamundo....

>How much are a CD4066's??  I'm presuming they need their own power supply
>and come on a dip chip.  I was trying to avoid adding in another PCB.

About 60 cents / +3 to +18 or +-7.5 / 14 pin dip / no PCB needed just point to
point it in like a transistor. 1 chip(2 switches), 2 resistors and a few
wires.

-Tom