[sdiy] Compandor chip availability

[Robert Kent]

On Mon, 6 Jan 2003, Tim Ressel wrote:
> Does anyone know if NE/SE 570/571s are still available??

  I believe these chips are no longer in production, but many
sources still exist. In addition to those mentioned by previous
posters, The Electronic Goldmine has the SA571 in SOIC form for
.49USD. http://goldmine-elec.com/

  I've scrounged several NE/SA571s in both DIP and SOIC form
from old mobile phones (bag/car style with separate handsets),
which were pretty much the original application. These phones
also yield a ton of discrete RF hardware: 900MHz power amp modules,
PLLs, mixers, filters, SMB connectors and so on. The last phone I
took apart had a voice-activated speakerphone-on-a-chip (MC34018P)
with all support hardware on a self-contained pcb. Haven't figured
out a synth application yet.

-- 
Robert Kent
hanuman at ccsi.com