Little things that bug me

[Doc B]

Those are not "smoked glass tubes" that you are looking at on ebay. The opaque coating is Aquadag - Aqueous Deflocculated Acheson Graphite - colloidal graphite. It's there to reduce the emission of secondary electrons through the glass envelope, which are emitted when high energy primary electrons emitted from the cathode strike a metal part in the tube. 

 

[Alonzo]

I used to use a lot of that stuff when at work, but it was called Neolube then.

 

[Colonl_Charisma]

Thanks Doc! This is really cool info that I was unaware of mainly because I only ever see "smoked glass" in the description of those tubes.

 

[Tubegopher]

It has been awhile since I had my yellow lab deflocculated. I better get him into the vet!  ;D

 

[canonken]

WHAT!!!???

I just paid some guy an extra $100 per tube to upgrade them to the smoke finish on the tubes I just bought!

Kidding, but yes I get annoyed with things like that too, especially when they come from the 'experts' selling them.  Good information.

 

[mcandmar]

I got another one for you, "Rainbow tubes".

 

[canonken]

I prefer my sound to be uncolored, thank you very much! ;D

 

[johnsonad]

Those rainbow tubes look cool! 

 

[2wo]

They do look cool, I'd pay extra for that