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For the record, James was my 1st go to for a DIY ILDA op amp board. Purchased 3, but never used them. Instead, Hankllyodright kindly modified his ESPILD player's PCB to provide my 1st alpha prototype's op amp circuit. He also provided the 1st ILD file played on my project and gave verbal guidance...

Tried to take a photo but I blew up a transistor I think. One side of my power supply goes into overcurrent mode. I need to fix that side of the circuit channel 1. Now the interesting thing. The noise/ripple on the remaining channel 2 seems to be gone. The line on the wall looks clean and I...

That looks nice, Kevin. Can you post some photos of the images with ripple? Are you looking at "the image" from the laser scans or from the Position feedback signal? Lots of things can cause the high frequency ripple, such as a poor cable shield Ground on the differential position signals...

Please let us know how things turned out for raising the star projector.

Thank you all for your help on my quest for a scan amp. I got a very old closed loop Gary Statler scan amp working and the images looked really nice. It's very similar to the laser images LM22SDA. So I kind of morphed the 2 and build a circuit that uses the control part from these designs and my...

What about a strobe? If set with a low and irregular cyclic rate that averages about 1 to 2 seconds per flash, that would destroy someone's sight in a dark room while also not letting them get a "lay of the land". The irregular cyclic rate also prevents them from anticipating each flash by closing...

It has been awhile- glad to see you're still here. Cheers, Gary!

Happy holidays to you and yours! I am truly thankful for this place, thankful for the artists, engineers, bit jockeys, and tinkerers. You have all made this hobby a joy to share!

Happy Turkey Day! I'm not a surfer, but you go Dude!

Here's the LFI in its rack.

Laser Fantasy amp, 2 of 3 channels populated, 3 g12os with mirror mounts, Laser Images XY-i projector with amps.Piece of dielectric mirror stock 450$ including shipping. Laser Images amps power up and center a test G120. I have to make an extender cable to test the LFIs. Steve

Here are a couple other boards I made. Both are band inspired.

I still use LivePRO with both an FB3SE and FB3QS. The licence is tied to the FB3SE and FB3QS is used as a second output. Just before Pangolin dropped LivePRO one of the updates was to make in compatible with FB3QS DAC's. I am running the last release of LivePRO 5.50.725.2024. Just make sure...

Woudl you mind sharing more technical details and detailed photos of the lasers? Would help a ton with reverse engineering and learning.

I think his point was that you can use a bright DLP video projector to safely startle and disorient an intruder while also using it as a video projector to display whatever video effects you might enjoy. Although to be effective, the DLP projector would have to be powered up all the time. Not...

David Zurcher's Audiolaze unit can create effects similar to these. It accepts line-level audio and feeds it to 8 separate band-pass filters. Each band has a gain adjust (to set the "trigger" level for that band) and 3 switches for mapping the output signal to the red, green, and blue color...

That's interesting. I assumed that the newer FB3QS hardware was was more or less the same as the original FB3SE unit, with the only difference being that the newer units were smaller due to some component miniaturization and the removal of the DMX output and compact-flash memory card reader. But...

I have an unpopulated board if you’re up for a challenge. PM me your address if you’re interested and I’ll get it sent over.

Bumping this. Still would like to get an LM22SDA.

Thank you. That's very interesting about carbon resistor stability. I never would have thought that.

27 ohm, 5%, 25ppm/K Carbon resistors aren't stable. They don't stay at their rated resistance.

love it love it

testing a new abstracts pack.. in my living room

It was called Foreplay because that was the music title. We actually mostly used it as an encore. The opening wasn't a star, it was an audio modulated squished squiggle (maybe it was a highly modulated star?). I seem to recall that in blue and there was a red dot in the middle.