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Welcome. PL is a great place to spend time. You'll find a wide variety of topics get discussed. From the latest hardware and techniques, to more nostalgic equipment and methods. This community and the people it is comprised of are amazing.

PM sent with info.

If still available I'll take everything minus the galvo and amps if possible. Let me know how much you were thinking and I can probably send over a payment today.

So I am located in Key West Florida. My interest revolve around the design aspects of shows. Most recently I have found myself lost in the concept of coordinating live show design using SMPTE.

welcome tell us about your interest and where you are located. There are people worldwide on the forum.

2495mm is from center pin to center pin distance right ?

... here the video for the slate-engraving -- https://www.youtube.com/watch?v=eHhM9wIAI7Q&feature=youtu.be Viktor

... looks more powerfull ... Viktor

Would a 60W MOPA work like the video I posted, or, does that look more powerful?

... tried "deep engraving" in slate today -- here on 100x100mm slate tiles - left 1 pass, right 20x (just under 15 minutes): Viktor

I'll send the BurrBrown chip with my next shipment of Laserium artifacts. It just occured to me that it might be a cool effect if you used the ramp shaper on just one axis. It might be similar to the KQO symmetry effect.

The dual transistor in the spiral ramp circuit is similar to the 2QMM circuit. I'm guessing, but I believe it was to get a log frequency response from the 0-10 volt up down ramp control voltages. You see it in audio synthesizer circuits where they're after one octave per volt VCOs.

An error causing the low amplitude of the CYGN-A oscillator was found. Photo shows the three oscillators. Other photo shows the collection of the less common semiconductors which should be able to become the SPGN, except for the Burr Brown, with which this build will have to do without. If I may...

THANK YOU! NICE WORK!:cool:

I used these. https://www.rfparts.com/r161075040.html You will need a crimper to use these connections. There are crimpless types of connectors too, just more expensive.

Hello, I made a bash script, that, when executed, selects the next preset from a list, and drives the radiator via MIDI. On every invocation of the script, by command line, a cron, launchd or atd system, or even the return code of another script, it will launch the next preset. The list is in a...

Excellent. Thank you! The Egg and Spider reminds me of Qix and Sparx.

I have a 6Mb .ild file ready to post. It contains three dogloids and a sample from the CYGN-B. Anyone know, is it ok to post .ild files here in the PL threads?

So must get LMR-400-UF 2495mm .. What connectors you used at both ends ? Your RF PSU is Deos D600 ?

i found it but older version

In menu K, you will see that there are vertex cursors. One looks like a square and the other looks like an 8 way cross. I call them the egg and the spider. You can move them around the vertices using the } keys. You'll notice you cannot move past either end of the vector set and you cannot move the...

Ok, so using the NanoVNA I put a connector on one end of the cable and started cutting pieces of cable off till I got to what appeared to be a perfect open at 100MHZ on the smith chart. Cut a touch more off to compensate for the center pin and crimped it all up. And it works. Finally. This is using...

I'm looking for a way to by pressing a key repeatedly delete the last point in a frame, and read the frame length when the head and tail of the line appear closest.

The spiral card had 3, 0 to 10 volt inputs from the 351 data, and two digital inputs. Out rate, in rate and sweep were the analog signals, spiral reset and diamond spirals were the digital inputs. So you could control how fast the ramp generator ramped up and down, reset the ramp, and the sweep was...

Here's a quick tutorial on working with color:

And thus, a slice of history is revealed in a log book entry. The photo shows this circuit built using a KIA324P quad op amp. The output is a beautifully tunable quadrature. But the output amplitude is only slightly over +-1V. Is this correct? I notice the 10K in the summing amps suggests some gain...

this is the installation instructions PDF, this has a good bit of information in it!