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If you want to build the AD633 circuit you could use the wiring diagram I posted on that thread following laserist's schematic. Just note that in the wiring diagram pins 6 are not grounded which they should be. Otherwise the circuit works great with a 360 degree WW2 era sin / cos potentiometer. I...

I hadn't thought of that. Good idea. I was thinking more along the line of housing my old MediaLas galvos and a low power diode in my open air flying architecture style of cardboard boxery.

What you say here rings true in my case Steve. All through school educators were on my case about performing poorly. The complaint was always lack of effort, not lack of capability. My reason for that was, aside from laziness and reluctance to leave a comfort zone, a profound disinterest in...

I had an ALC 60X with the "gold box" PS in the early 2000s. Only multiline laser I ever owned.

We reprocessed 1000's of ALC 60X ion lasers for xerox. PM me when you would like to talk.

THE Pass through zero oscillator stops the rotation as the VCO gets a zero control voltage, then reverses the direction of the phases relative to each other if the control voltage goes negative. So when you slow down and goes through "zero" Hertz, your rotating image stops.. Not the digital way,...

Thanks for all the input and advice. Don't get me wrong. A large part of this project is for my own entertainment and learning. I love this kind of stuff.

They are likely to join the "Boriod" band. (In house joke) Anyways, if you really, really, want to have fun with abstracts and go totally analog, this is a "pass through zero" Oscillator... http://aldebaran-systems.com/VCQO.htm Don't know if its in Gramps budget, but much, much better...

This ION laser user would love to have a phone call with you some day, got to the point I would repump tubes for my employers. Have a pump station in my basement and bought a tiny part of Lexel at auction, so my friend could redo HGM tubes. Used to drive up to Canada to pick up old Xerox heads...

or they might secretly be cats.

While taking laser classes at PCC I got a job at Omnichrome. Fred Otto hired me. I started making HeCd cables and soon moved into HeCd assembly and laser alignment. Laser moved to Ion laser assembly and alignment. Later became an application engineer. Was at Omnichrome for 14 years.

My degree is Secondary Ed, Jr High through High School... I work at a University College of Engineering as a Research Technician. If any child is especially attracted to the laser light and is performing poorly in school, or is well off the beaten path development wise, it might be...

Great idea. Thank you

Kevin, what did you do for Omni? Steve

when we developed our abstract console (the radiator), we added hdmi video output so it can be used in scenarios where it's unsafe to use lasers. that also makes it safe around children. you might consider the same sort of approach. Grandkids are 4 and 6yrs. They both love lasers. We have...

How old are the kids you expect to introduce the joys of analog image synthesis to? Have they seen your cycloids? What were their reactions? I work in early learning, and have been considering how I would configure an analog panel young children could successfully explore, and, more difficult to...

I know Amir. We worked together at Omnichrome and then Melles. If you happen to talk to him again, tell him kevin tice say hi.

I'm feeling better my vertigo is gone. I'm going to need to read through those posts and see if I can understand what is going on. I'm hoping i can put together the rotation circuit and give it a try. This will take me a few weeks. Need to buy the components. My current breadboard is...

Its a V-fold. The trick is measuring the water conductivity. I have personal experience of cracking a cavity reflector and lamp when the handheld indicator says good to go but the water wasn't. Let the water system run for a few days, grocery store or drugstore DI isn't that good. You need...

Hi Steve, Thanks for the reply. The screen grab is very useful on the newer scopes, great for documenting things. I do have a Landwher Q-Switch driver out of a HPS. This might be a better option. It's 27Mhz (matching the existing driver) but much higher output. According to the datasheet it...

I called some one who would know. IMA has same pinout as 643/543 DB25. He's downsizing his business and be glad to sell you a remote test card or a full remote. 801 *** 520 *** 4437 Call Amir at above. remove stars Steve I do have a 8m long fiber cable that I might or might not...

Popped open the laser head and gave it a little blowout/clean up since it was a bit dusty/corroded on the heatsink. Tried to follow some of the traces back but admittedly just don't know enough about thies lasers to really know what I am looking for, (Have only really messed around with diode...

The digital circuit is a true Z axis rotator. It has minor glitches at 180, 270 degrees. Steve

Thanks for the info Greg greatly appreciated. See previous post.

Thanks Steve I'll have a better reply is a few days. Just had my first experience with vertigo - so my head is not there yet. Got some meds from the doctor.

The AD633 rotation circuit was given on this page: https://photonlexicon.com/forums/showthread.php/28228-CYGN-A/page6 and has the added advantage of being hand drawn on a Zeiss letterhead notepad. How old are the kids you expect to introduce the joys of analog image synthesis to? Have they seen...

It's known to work. The digital section simply is a digital word for the angle, or the output of a counter chip. I need to build a new digital section, PC parallel ports are a thing of the past. Probably will use an AVR Processor in the form of a arduino such as a Uno or Pico board. I ordered...

Martek bought Laser Drive. Makes sense. I'm still trying to find the files. I have the Laser Drive data some place. Steve

Toto, we're not in Kansas, anymore...

If Admin could delete this that would be cool. Maybe a bit outside of this forums scope...