Yamaha CS80 group photo

Yahoo Groups archive

Yamaha CS80

Index last updated: 2026-04-14 00:16 UTC

Message

Re: Replacing all CMOS 4000 Series Logic IC's

2009-01-20 by mborish_2000

It might.  Some of the older chips took forever to switch.  I haven't
seen a datasheet for the original 4000 series Toshiba IC's. I'm going
to do that next.  The new 4000 series chips have much lower internal
resistances.   

--- In yamahacs80@yahoogroups.com, "Quazimodo" <noddyspuncture@...> wrote:
>
> Mike I just Googled and read up on it (a bit..)
> 
> Should you really worry... it looks like it would be in the
> *nanosecond* region anyway.... or am I wrong..?
> 
> Cheers,
> TOM
> 
> 
> 
> --- In yamahacs80@yahoogroups.com, "mborish_2000" <mborish_2000@>
> wrote:
> >
> > Thanks for your help everybody.  Eventually, I am going to do a
> > continuity check.  Right now I am worried about propagation delay. 
> > I'm not going to run into any propagation delay issues if I keep most
> > of the  CMOS in there am I?
> > 
> > -Mike
> >
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.