Cgs synth

If the part is specified as a 74HCxx, then you should get the HC part, not a
74xx or 74LSxx or whatever part. The HC is a CMOS part with lower power and
noise. While other labeled parts may work, then will tend to introduce more
noise coupling into your power system and back to you other circuits.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com

> -----Original Message-----
> From: cgs_synth@yahoogroups.com [mailto:cgs_synth@yahoogroups.com] On
> Behalf Of c10h14no2i
>
> well the reason I ask about the letters is because I used to build
> little B.E.A.M. robots. For those, I needed the exact letter to be
> correct. for example, one time I needed some 74hc14s. My local
> electronics store said "well, we've got the 7414.. those should work
> fine" I bought a bunch of them, tried them out, and no luck. They
> did NOT work. Ordered some of the 74hc14's and they worked fine.
>
> I just dont want to run into similar issues, only w/ a tun of IC's
> that ive ordered online already, then have to wait a week before I can
> start my project again.
>
> In that particular case I think it was because the HC's could process
> the signals faster.. something like that
>