Tony Duell wrote:
For just
playing around you can also use an oscilloscope in X-Y
mode... even better if you can trigger off of another input too.
Since a 'scope in X-Y mode doesn't use the timebase, I am wondering just
what is 'triggered' ?
The Vertical and Horizontal Timebase is detached internally when
switching to X-Y mode. There is no triggering involved. Basically, the
inputs are fed directly into the deflection control for each X axis and
Y axis - much like on a Vector monitor inside the Asteroids cabinet. So
then the voltage input is converted to deflect the beam up/down or
left/right. For those scopes with a Z axis input, this provides an
additional intensity level control to change the brightness of the beam.
=Dan
http://www.vintagecomputer.net/ragooman/