love those he ne's

[cheech226]

as i'm moving i've been going thru stuff as usual. lit up an old red tube. beautiful!. i have a nice naked green tube i bought from dave a long time back. it needed a ballast resistor at both ends. the + one i have and it's 10k ohms.
the one for the - end i can't find. any idea what value i need. i'd love to light this one up.

 

[cheech226]

got it!

 

[Jombo23]

Looks Great, the HeNes are really cool huh?

 

[lasersbee]

Small He-Ne tubes take anywhere from 20K to 60K
ballast resistors depending on the power Supply.
You don't needs Ballast resistors at each end.
The positive end will do.

Jerry

 

[cheech226]

hey jerry, i found a resistor that worked. dave told me this old tube needed one at both ends. i did have my polarity mixed tho. cathode got the 10k, i found a 75k for the anode.
it lases now. so i get to quit playing and get packing.

 

[paul1598419]

I love my gas lasers too. I got a few of them to make holograms with, but haven't been able to get my optical bench set up to get back started doing them again. Are you moving?

 

[cheech226]

yeppir, into the deep south, houma loosiana. i sold out my collection years ago. still have a few. want a 405 burner just cuz

 

[paul1598419]

YOUCH! Enjoy the heat, humidity, and mosquitoes. I lived in New Orleans back in 1970. It was a very colorful city back then, but soooo hot. Enormous cock roaches and those pesky mosquitoes. Great food and always something to do. I saw Led Zeppelin there in January 1971. Had my elbows on the stage. Couldn't get any closer than that.