Originally Posted by
stanwax
I have recently been playing with the Pangolin circuit - there really isnt a lot to it but it does whats needed. I have sitting on my bench an full built 3 channel device that I just need to hook up and setup. The circuit used was breadboarded some weeks ago and tested as seen on the image below. Comparing points X on the top image and y on the lower image you can clearly see better colour alignment. In this test bed device I used two channels to slow the red and green leading edges to match the blue. The reason my built circuit has three channels is so I can speed up the falling edge of the blue because as you can see there are blue 'tails' on the image.
This circuit is to be a building block for an RGB interface I am building.
Rob
Rob -
Thanks for posting your findings on this - I believe this may be the solution I looking for! Any chance you could post a few more specifics, i.e. - what diode and amplifier chip did you use, and perhaps a basic tutorial on how to setup and align a projector using the circuits? (Hopefully, there's a way to set this up WITHOUT the need for an oscilloscope, since that's one more expensive toy I haven't acquired yet )
Basic electronics I can handle - but once we start diving into the realm of theory behind filters, amplifiers, etc., I'm a bit behind the power curve! It's a shame these things aren't powered by Rolls Royce turbine engines instead of pumped diodes - THAT, I could relate to
RR
Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
1979.
Sweet.....