Recent content by 9A3DAA

I just finished power supply for a pulsed laser. And yes, it works!

Do I need cooling glass cathode bell? Its very very hot hot!! I will not use this tube for continuous operation. Just for pulsed

I wind 1.5 turn (1.7VAC) and another 1.5 turn. Total voltage without load is 3.4VAC and you can see on the pictures on load voltage drop to perfectly nearly 3 volts. Ammeter show 22A @ 3.15VAC that is 70W power consuption as expected. And everything now see to be perfect, but don't. My MOT is...

If I add another turn, total voltage will be 3.4VAC. That is little too much?

Argon LASER cathode filament is 3VAC and old MOT (microwave oven transformer) high voltage secondary removed, and manually wound 6mm2 (10 AWG) cable. I got 1.3VAC with 1 turn and 1.7VAC with 1.5 turn. I need extract center tap, but I can't get 1.5V between the windings. Question is: Can...

Can MOT give enough current to laser filament? I know magnetron from microwave need 3V 10A

I got mine new argon running for 2 hours today on 15.3 mW @ 6.5A:evil:

I guess this goggles are perfectly safe for 15 mW. When beam hit in my eye though googles I barely see dot that is orange color. Laser safety goggles that I got with laser are O.D. 5.0 @ 488 - 514 nm I know it's say never look directly into beam but it's for powerful argon 1-5w :tsk:

It is rear surface mirror Everything perfect clear now. Thanks for help. :thanks:

I found problem. It is mirror! I remove mirror and lines disappeared But still mystery why perfectly parallel lines no matter when I rotate. I hope you don't mind diachi. It was misunderstand, I am just tired it's 11:00 p.m. I am going to sleep. See ya tomorrow And thanks for help!

It's same, with and without prism

when I don't rotate mirror or expanding optic, then I rotate head. and when I rotate mirror or expanding optic, I don't touch head. I tried all possible combination. I rotate head, and my brother rotate optic so that rotate all at once in all direction, always lines are vertical position. Ther...

:oops:I am so stupid... they DON'T ROTATE It was misunderstood:thinking: Lines are always vertical no matter I rotate LASER head, or optic or mirror... Sorry

There is no other optic in laser head except HR and OC, I cleaned OC and same. I would love that you guys with argon laser make same experiment and see what you get.. Maybe single line argon don't have this. I dont know... I am litle disapointed:yabbem::yabbem:

yes they rotate when I rotate head