WRT the horiz/vert signal pick-off for digitization, there is a nice clean
demarcation point on the 577 RHS of schematic 6, where the outputs from
U530 and U570 drive the output amplifiers.
At this point, it is 500mV/division, and appears to be inverted, I am
planning to buffer/invert these and convert to 100mV/div with an additional
pair of op-amps.
Looking at the 576, things are significantly more murky. Looking at the
display amplifier schematic (#9 on the bama manual copy), it looks like we
would need to pick off somewhere in that discrete signal chain.
I want to pick the signal off after all the applicable front panel controls
such as: magnification, inversion, positioning, etc
If there is interest in doing this, I think there is value standardizing on
pick off points for both the 576 and 577, preferably with maximum
compatibility.
toggle quoted message
Show quoted text
On Tue, Nov 2, 2021 at 11:33 AM Jeff Dutky <jeff.dutky@...> wrote:
apply the graticule pixels to the final frame buffer on the display
update, don't keep them in the "accumulating/integrating" buffer.
--
Andy
