On Tue, Mar 30, 2004 at 01:39:20AM -0800, Declan Moriarty wrote:
> I am drawn to the stripe on the top, which is a polarity mark?
> In the photo http://www.boerde.de/~matthias/cd/dsc03777a.jpg there
> appears to be a couple of them. How many are on the board?
3 parts are on the board. And one is soldered upwards! The stripe on top is
made from the same metal as the contacts, but does not seem to be connected
to the other ones.
> I am inclined to think it's not a simple 0.5nF capacitor, but some sort
> of polarised device. Options would be diodes, supression etc. Are you
> sure that's all that's connected to the opamp (4 layer pcbs and all
> that)?
Yes it is a 4 layer board, but does not have any planes - I can look through
all 4 layers (behind a strong lamp) and I see the wires in the inner layers
too. I have connected my osci to that part and when I knock on it I get a
AC-voltage across the part. Looks like a shock sensor.
Matthias
--
Author: Matthias Weingart
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
