I have a quartet of 6CA7 power tubes (EL-34). Three of the four are Philips made and the forth is a Tung-Sol.
All four were in the same amp and worked perfectly for years. They have been tested and test as Very Strong.
I removed these from my 1973 Traynor YBA-3 Custom Special almost 4 years ago. Since then they have been safely stored in their boxes.
$250.00 US for all 4 plus $20.00 US for shipping via mail.
PayPal is fine providing you have a confirmed address.
I also have 3 Philips 12AX7A pre-amp tubes (7025A) from 1973 available that test as very good. PM me if interested. $95.00 US, shipping via mail included.
Sorry I won't sell tubes separately or in pairs.