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Pretty sure it was bad diode.

Trying to revive this again… did you sort this problem? I might have the same issue too, caused by a sudden shift in the wavelength. Thanks.

If the juke has unbalanced outputs - get unbalanced to balanced transformers...

The meeting with the program director at the city's second oldest operating cinema has occurred. I was told the owners are interested and a date might be in January. The plan is to have a table in the center back row and block off center parts of about four rows. The floor is on a shallow...

That board was just included for the parts. It had four fairly fast 12 bit adc & dac chips. It plugged into a IBM PC, and I used it to characterize the analog color computer of a Hell 340 rotary drum scanner recorder. I built it about 7 years after my time with Laser Images.

Here's a photo of the drum kit graphic recovered by lasermaster1977, shown in laser. Also shown are front and back photos of an interesting looking unidentified wire wrap board that came with the shipment that was picked up in Buffalo a few years ago.

These boxes were the only enclosures I could find that were big enough. I much would have preferred an aluminum extruded enclosure or an old show laser enclosure over a steel sheet metal one, but I made it work. I actually had to shave an inch of extra material off the optical table to make it fit!...

Thanks! I'm currently using LaserShowGen and a Helios Laser DAC. It would be cool to try an FB4 and QuickShow/Beyond, but that's a bit out of my price range currently haha.

Thanks! Believe it or not, it only costed me $250 in parts! I had access to a mill so the machining only cost me my time and $20 for aluminum stock.

Thanks for the info Steve. FIXED!

Yes sir, I just re-read my John Bell Engineering, Inc 2716 EPROM Programmer manual (to fact check myself and my old recollections) which states that any memory location within the 2K data range to be written that is not to be overwritten should be filled with FF. So it was possible to only write...

It's important to remember it was a long time ago. The DOG programing was done real close to the bare metal. The first computer at Laser Images was a six board wire wrapped masters thesis project. Having some junk in the unaddressed space wasn't because they put it there - they just didn't take it...

Great investigative sleuthing, Roj! It cools to see the image pieces fall into their choreographed place. Greg, when I was referring to CVs, I was extrapolating the use of 8-bit values being used as inputs to the DOGN 8-bit DACs for "image offset control voltages". To me a CV is a very broad...