Episode 32
#laser
#electronicscreators
#optics
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I bought a couple of MNL-100 Nitrogen lasers that were listed as "Pulled form a working environment" but we ll know that means "Pulled from a Dumpster"!
These are of course non working, and in very poor physical condition, so I do a very in depth tear down on one, right down to the guts.
Later I rebuild it, and hack on a good old fashioned Spark Gap switch to see if I can get some output.
This will be a two part video. Later I will build my own control electronics, and graft in a triggered spark gap. Stay Tuned!
https://www.ltb-berlin.de/en/products/lasers/mnl-100/
Link to Manuals: http://www.ltb-berlin.de/en/company/downloads/
Relevant patent:
https://patentimages.storage.googleapis.com/a6/c7/da/0abd64a49c006f/US5875207.pdf
***Video Contents***
00:00 - Intro
00:18 - Nitrogen Laser overview
00:52 - Teardown
01:57 - Control Board description
05:54 - High Voltage Power Supply
07:30 - Pre-Ionizer board
08:45 - High Voltage IGBT switch
13:39 - Laser Energy Sensor
16:53 - Laser Tube
23:33 - Preionizer powerd up
24:28 - Oscilloscope Measurement
26:14 - High voltage power supply hacked
29:01 - Replacing the IGBT switch with a spark gap
31:13 - First Light! Powering up the Laser!
32:00 - Measurement of RF Noise
32:35 - Further improvements for the Laser. Commercial spark gaps and control electronics.
33:20 - Outro
#Laser
#Teardown
#SparkGap
#Dumpsterhack
#electreonics
#optics