RE: Vector Hardware

It DOES indeed 'offset' both X and Y amps in the same matter...

So, actually, it is somekind of 'rough' positioning of the XY?

jeff hendrix <jhendrix@Quark.Com> on 11/12/99 07:13:25 PM

Please respond to vectorlist@lists.cc.utexas.edu

To: "'vectorlist@lists.cc.utexas.edu'" <vectorlist@lists.cc.utexas.edu>
cc: (bcc: Mendel Pearl/Matra exiTel/nl)
Subject: RE: Vector Hardware

I don't have my schematics in front of me, but it might be the linear
scaler.

-jeff

-----Original Message-----
From: Mendel Pearl [mailto:mendel@matranortel.nl]
Sent: Friday, November 12, 1999 10:40 AM
To: vectorlist@lists.cc.utexas.edu
Subject: Vector Hardware

Yes! Finally I got my Tempest AVG working again!

The problem turned out to be the MC1495 multipliers, which was a real hard
job
tho find these here in Holland.

My other Tempest board still has a problem with the X defection, the Y is
working after replacing the current/voltage opamp (TL082) , thanks Rodger!
This
little baby indeed caused the virtual ground to be not 'grounded' :)

Maybe somebody could help me out on this one:

What is the DAC08 doing in the circuit? So far as I can see from the
schematics
and MC1495 datasheets, it seems to me that the MC1495 multipliers perform
the
east-west correction (pincushion).
As you can see from the circuit, the output current of the DAC08 is directly
summed to that of the XY DACs.
Maybe somebody could shine a light here? I am really trying to know how the
AVG
functions exactly...

Thanks!
Received on Sat Nov 13 09:22:26 1999