Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

Two Melles Griot Tubes With Clipped Chords

They look to be in decent shape. Glad to see you got those ballast resistors out
 





Yeah. Lemme tell ya, long fingernails were very helpful when picking away the light rubber from the resistor and wires.
 
Sorry for the double post, but i ordered the power supply today, an MG 05-LPM-830-065. here's a picture:

FVn3dug.jpg


hc9KrZI.jpg


I hope this will work ok for what i need. It's output is 1.6-2.0 KVDC @6.5mA and my tube's data sheet recommends 1790VDC ± 100VDC @ 6.5mA
so i'm in the sweet spot there for voltage and i'm dead on for current. I'm still in need of a male alden connector :( but the power supply is
scheduled to arrive on tuesday, 10/29/13.
 
Last edited:
That should work fine. My p177 runs on about 2K with a 75K ballast and is a sister tube to what you have.
 
anyone know the type of connector (not the alden one) that is on this unit? i want to put together a PCB with a switch for on/off and TTL on/off. i suppose if I need to ill just put a different connector on.
 
Last edited:
Bump

I have all the parts i need for my HeNe's and i should be lasing in a week :)
 
like 30+shipping it was a steal :) but i paid friggen 27.95 for a single male Alden cable... haha
 
Last edited:
Ouch. But still reasonable... I think that's about what I paid for mine a while back pre wired.
 
yeah it was 18 before shipping i believe. i got it from Merideth Instruments
 
Yeah I was rewiring old tubes a while back and I think they were 15 each at the time. Expensive lil buggers.
 
Last edited:
Why on Earth would you need an HR and OC for 400-700nm??

The only lines for HeNe are 543.5 - 652.5 (not considering IR).

On top of that, you need a different gas fill for 543.5, so from one tube, you're looking at 594.1 - 652.5nm. There is no need for anything beyond 543.5.

Also, may be possible for you to test them without the male connectors.

Solder a pin of some sort on the ends of the wires, like a paperclip or something. Or just wrap the wire around the clip, and stick them into the female alden. Just don't be rough with it. Also, make sure you don't create a short, and electrical tape/heatshrink your connections. Don't need to short out the PSU!
 
Last edited:
One thing to note, see the dark stripes down the bore of the tube? Those HeNes have seen quite a lot of use.
 
bloompyle said:
Why on Earth would you need an HR and OC for 400-700nm??

The only lines for HeNe are 543.5 - 652.5 (not considering IR).

On top of that, you need a different gas fill for 543.5, so from one tube, you're looking at 594.1 - 652.5nm. There is no need for anything beyond 543.5.

Also, may be possible for you to test them without the male connectors.

Solder a pin of some sort on the ends of the wires, like a paperclip or something. Or just wrap the wire around the clip, and stick them into the female alden. Just don't be rough with it. Also, make sure you don't create a short, and electrical tape/heatshrink your connections. Don't need to short out the PSU!
Click to expand...

Yeah... i recently discovered my mirrors are >632.8nm so i would need something for just less than that. I thought it would be cool to have a 400-700nm HR and OC laying around but that is obviously not gonna happen...

also, i didn't want to have to use the paperclip and such to connect the tube to the PSU, It was worth it to me to have a solid connection.

MarioMaster said:
One thing to note, see the dark stripes down the bore of the tube? Those HeNes have seen quite a lot of use.
Click to expand...

not something i wanted to hear... ignorance is bliss :)
 
Last edited:
The paperclip wouldn't be permanent, but it would at least allow you to test the tubes.
 
if only i had something to test them with (i don't have the PSU yet, its in the mail)... besides, you never know when you'll need a male alden connector with a ballast resistor and clips on it :)
 
Last edited:
You must log in or register to reply here.


Back
Top