he ne tube

[meggy]

hello guys can anyone shed any light on this laser tube like the power output

 

[Giannis_TDM]

For one from the 70s expect barely 2-3mW

 

[Gryphon]

This would be my guess, and it would be a red laser at 632.8nm

 

[Encap]

"Sam's" shows Spectra-Physics 147 as a 632.8nm 5mW laser see: https://www.repairfaq.org/sam/laserhcl.htm#hclsphl

You can purchase an Instruction Manual for it here: https://www.ebay.com/itm/402086142052

 

[meggy]

This would be my guess, and it would be a red laser at 632.8nm

i asked this question before i got it thanks for the reply.on reading the warning label it says 8mw @ 632.8nm the laser was an easy fix good find at £40 to

 

[meggy]

For one from the 70s expect barely 2-3mW

8mw @ 632.8nm found that out when i got it delivered

 

[paul1598419]

Often the power labels put on these tubes doesn't actually show the actual power output. They are a maximum output among several tubes that they offered at that time.

 

[kecked]

8mw is. Really strong hene tube in those tube types. Highest I’ve ever seen p was 100mw but it was 6 feet long. Most usable was 3 foot long doing 35mw

 

[Mattronium]

That is a nice old HeNe tube. If it works that's a great find, working HeNe's from before 1980 (especially 1977) are rare.