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RE: [Doepfer_a100] Problems with 4096 stages BBD modules

2006-05-19 by David Salter

Excuse my ignorance here as I'm sure it's been said before.
 
When I purchase a BBD module will I be able to swap different BBD chips,
i.e. are the chips pin compatible?
 
Thanks
 
David
 
David Salter
Senior Project Manager
Reuters Ltd
Tel       +44 20 7542 2402
Mob     +44 7990562402
email    david.salter@reuters.com
RM       david.salter.reuters@reuters.net
 
 

________________________________

From: Doepfer_a100@yahoogroups.com [mailto:Doepfer_a100@yahoogroups.com]
On Behalf Of Dieter Doepfer
Sent: 19 May 2006 09:19
To: Doepfer_a100@yahoogroups.com
Subject: [Doepfer_a100] Problems with 4096 stages BBD modules


Dear members,

I have very bad news concerning the BBD modules with 4096 stages.
Yesterday
we received the second batch of BBD circuits with 4096 stages. We tested
them immediately (Florian, thank's for the note concerning the problems
of
other BBD buyers) and found that they do not contain a 4096 stages BBD
but
only 1024 stages ! Obviously the circuits have been relabelled and
contain
probably the very much cheaper MN3207 or BL3207 with 1024 stages only.
I've
heard about such relabelling for computer chips but was not aware that
it
happens for BBD circuits as well.

Anyway - this will cause problems with A-188-1D (4096 stages version).
If
you have already ordered you are not affected as we had 100% testet 4096
stages BBDs in stock and still have about 25 of them left. But if these
are
used up we cannot deliver A-188-1D unless we find "real" MN3205 or
MN3005.
And probably we will have to increase the price for the A-188-1D as I
assume
that we will have to pay much more than for the first batch.

If someone wants to order BBD circuits that are offered in the internet
(e.g. at ebay or from far east suppliers) be careful that you will get
the
real parts !

Best wishes
Dieter Doepfer




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