Hi Everyone,
I recently purchased an analog Oscilloscope (Tektronix 2235) that has XY mode and a Z channel so I can troubleshoot my vectors more efficiently.
I hooked up a Vectrex I'm working on, and everything works fine except the Z signal is inverted. The Oscilloscope intensity is the inverse of voltage (where voltage is 0-5V peak to peak). The result is that I'm seeing the redraw lines and not the vectors.
What I need to do is invert the signal before it gets to the O-scope so I can see the vectors correctly. To my knowledge, there is not an "invert" button for the Z channel (unless one of you knows of one?).
Is there a device, ready made for this? Or should I build my own circuit?
links or schematics are appreciated!
Cheers,
Steve