[VoIP] Old DT, Busy & Reorder on 366

[Doug Alderdice]

Here's the datasheet for the Motorola version of it:

http://www.ortodoxism.ro/datasheets/motorola/4066.pdf

On this web site 
http://www.datasheetcatalog.com/datasheets_pdf/4/0/6/6/4066.shtml there are 
no less than eight manufacturers listed for this chip.

Jameco lists it in their current catalog as does Digi-Key.

D.


At 01:30 PM 8/18/2007 -0400, you wrote:
>Practically everyone who made CMOS 4000 series parts (probably dozens of
>companies worldwide) made the 4066.  It probably was reincarnated in 5V
>only 74HC form as the 74HC4066 or perhaps 74HCT4066.   Look at the
>Jameco Electronics or Mouser websites for example.
>
>=SK=
>
>John Novack wrote:
> > john jones wrote:
> >
> >> Doug,
> >>
> >> Is a 4066 some kind of TTL controllable audio switch?
> >>
> >> Who make it?
> >>
> >> Thanks!
> >>
> >> John
> >>
> >>
> >>
> > JJ, are you THAT young??
> > The 4066 is a quad audio gate.
> >
> > It WAS made by several manufacturers who were into the 4000 series CMOS
> > These date from the 70's
> >
> > John Novack
> >
> >
> >> ----- Original Message ----
> >> From: Doug Alderdice <ka2wft at arrl.net>
> >> To: Voice Over IP Tandem for Analog Switches <voip at lists.ckts.info>
> >> Sent: Saturday, August 18, 2007 10:22:28 AM
> >> Subject: Re: [VoIP] Old DT, Busy & Reorder on 366
> >>
> >> At 06:37 AM 8/18/2007 -0700, Max wrote:
> >>
> >>
> >>> This sounds great!  I noticed that your fast-busy is
> >>> attenuated in volume as compared to the slow busy.
> >>>
> >>> This was pretty much standard in a No. 1 SxS in the
> >>> Bell System, to the point that Evan Doorbell commented
> >>> on it in his tapes...
> >>>
> >>>
> >> Ah, thought I remembered something like that.  Maybe I will leave it
> >> alone!  :-)  All has to do with the coupling to the various circuits.  My
> >> busy goes right to the busy tone input on the connectors with no coil...
> >> thus you can dial up busy on two different lines and talk across it --
> >> though you can't try that from CNET because there's only one path 
> available
> >> from * to the switch.  Reorder is coupled through a transformer as is 
> dial
> >> tone.  Though, both dial tone and reorder are hooked up the same way
> >> through identical transformers and I still have a different level between
> >> those two.  But, BT and reorder are gated through a 4066 chip and dial 
> tone
> >> obviously isn't gated so that's another variable in the mix.  Seems to
> >> work, and if it mimics prototypical operation, more's the better.
> >>
> >> D.
> >>
> >>
> >>
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