[krisno]

I just got my hands on 2x RCA white label 6922 gold-pin tubes. What are they?
 
- white label RCA(old and uncommon?)
- label: 3-26, 32 331, made in germany, "A12" is ecthed into the glass at the bottom 
- halo getter on broad support
- grey shield/riser?
- top of the tube has 4 creases
- number "26" is written at bottom of tube in between the pins.
- gold pins
 
Are these from the 1950s or 1960s? Are these rebranded CCA tubes? What are they worth today? They test like NOS.
 

 

[flu_fighter]

These should be RCA e88cc made by Siemens, they are pretty good, but not as good as the CCas.

 

[krisno]

But they are equal to the "normal" siemens? What are they worth?
 
And may I ask, this white RCA logo, can these be 1950s tubes? K

 

[flu_fighter]

I could be wrong, but looking at the construction, the splatter shield and the halo getter as well as the labels having both E88cc and 6922, this could be around 1965 - 1971, which is still good, definitely better than the 1980s siemens.
 
As to how much they are worth, it really depends on whether you can find a willing buyer. There are some pretty high prices on ebay, but those are usually for the ones labeled siemens and not RCA.
 
Depending on how well they are matched,  I'd say maybe around $50 or more for the pair?