New project, HeNe psu from scratch

[Experimentonomen]

I recently bought myself a Spectra physics 105-2 HeNe laser off ebay without a psu cuz im too cheap to buy a psu.

Solution ? Build a psu! I started off scrapping an old oscilloscope i had laying around that was broken, all a really needed out of it was the little high voltage transformer, apart from that i just needed a few HV diodes, a few HV capacitors and two resistors as well as a transistor.

Heres a little video of my prototype so far: http://www.youtube.com/watch?v=vVLF8kcIkMQ

I can´t test out the ballast resistor until the laser arrives, so stay tuned for updates.

[Experimentonomen]

Today the HeNe laser arrived:









so i went right to work on it, and heres the result after a few hours of tinkering:
http://www.youtube.com/watch?v=KWop0YPWcGI

[krazer]

Very nice!

Are you planning to release the schematic/pcb artwork?

[Stoney3K]

Very nice!

Are you planning to release the schematic/pcb artwork?

I had a look at the video, and it sounds like a bog standard 555-based flyback driver. Just Google it and you should get a ton of schematics for it.

[Experimentonomen]

The schematic is on Sams and Steves laser faq.

[shrad]

if you want, I have a female alden connector (if you ever plan on putting it in a nice box)

[Experimentonomen]

I´ve been looking for a female alden connector but with no luck. I intend to put this psu in a box, maybe even add a key interlock when the funds permit.