My Tube Collection, Welcome to share yours

[oldvinyl]

I found these at a tube dealer website that compare closely to the ones I bought.



The arches at the top going across the mica look like the ones I got.


Plates are stapled like the Sylvanias.
Both have 2 holes in the plates.
My assumption is that I got some 1950s Sylvania black plate 6BL7s that are actually really good. And they sound like Sylvania tubes from that era. Lucked out again.

 

[oldvinyl]

This shows the third mica a little better.

 

[adrian cheng]

Bought this on eBay for £20 auction, not bad for a 1959 single support version. Now have Nine Tungsram ECC83.

 

[adrian cheng]

 

[adrian cheng]

 

[oldvinyl]

Bought this on eBay for £20 auction, not bad for a 1959 single support version. Now have Nine Tungsram ECC83.View attachment 160974

If they ever need company, I have ... plenty.