6p15p-ev tubes matched quad. 

Gold grid. 

Tested strong. 

Matched current and Gm.

Extra long life tubes. 

Same date. 

6p15p-ev  = sv83 Svetlana 

6p15p = el83, but difference in pinout. 

See tube data please. 

If you need matched octet please ask. 

International shipping. 

Shipping time 2-8 weeks. 

I have more 10 000 tubes,  please ask you interested tubes.