[sdiy] I'm an idiot, right?

[John Loffink]

No

VCC = supply voltage, VSS = ground

John Loffink
jloffink at austin.rr.com 

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> diy at dropmix.xs4all.nl] On Behalf Of Peter Grenader
> Sent: Thursday, November 28, 2002 8:01 PM
> To: Dominic Tarr; synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] I'm an idiot, right?
> 
> 
> Peoples,
> 
> happy Fourth of Jul...whoops...THANKSGIVNG to you all.
> 
> CMOS reality check:
> 
> VSS= +3 thru 15; VCC=ground
> 
> right?
> 
> On a 4050B, pin 1 sis Vcc and should be ground, pin 8 is Vss and
should be
> +12 volts, right?  this should work, right?
> 
> I got confused with Vcc (which pin 1 is marked and was thinking TTL,
and
> reversed the power and ground.  I've tried 4 chips, perfectly
acceptable
> fluxuating signal is going into the buffers, all outputs on all
buffers
> stay
> high, regardless of input condition.
> 
> So, before I re-wire all the supply and ground lines (there are four
of
> these buffers in the circuit Im making), i just wanted to check...
> 
> i had it reversed, right?
> 
> HEEEEEEEELP.
> 
> Peter
> 
> 
>