[eBay -unaffiliated] 2mW 543nm Green HeNe laser head - $50

[Sigurthr]

Found this while looking for the elusive 594.1nm Yellow (my Moby Dick...)

Meredith Model 2mW Helium Neon 18" Laser Cylindrical HeNe Laser Head | eBay


If I weren't about to drop $500 on a yellow I'd jump on this, so someone here better.

 

[jcranmer]

Found this while looking for the elusive 594.1nm Yellow (my Moby Dick...)

Meredith Model 2mW Helium Neon 18" Laser Cylindrical HeNe Laser Head | eBay


If I weren't about to drop $500 on a yellow I'd jump on this, so someone here better.

That's a sold deal if it works.

 

[Mattronium]

It looks like the same person is selling five He-Cd Laser also! All but one He-Cd is selling for $49.99.
All of his laser items are being sold as "untested".

My 543nm HeNe just arrived yesterday so I don't NEED another either.

 

[Blackwolf]

Sam's FAQ says never but a GreeNe unless you know it works.

 

[Sigurthr]

HeCds are always a gamble, they're reservoir gas lasers, and as such are exceptionally fragile and limited lifetime.

It's always a gamble when buying from a seller that doesn't really know what they have, but those are also the only sellers you'll get massive deals on. If this guy knew he had a fairly good condition green hene he would probably charge $200 for it. It is up to the buyer to determine if they are willing to risk the money for it. I once bought a lot of about 20 632.8nm heads which all had their alden cables cut off within a half inch of the head. Every single one of them was working excellently. I resold them at 50% markup, which still came to 1/3 of the normal going rate.

 

[ultimatekaiser]

Yeah it's a good way to make good money. Most other color HeNes are a few hundred at least. 2mW is the typical max quote. Anything over is usually temporary overfill. (i.e. It's likely very new)