Hi there everybody, first post here!
So, I was trying to find matching pair of 6N6P tubes for my Feliks Audio Echo 2 and my local retailer who is very reputable got these 6N6P-EV's which I couldn't find any information but the link he gave me. It's weird that you really can't find too much information of these tubes from the internet. No one's even selling fake printed -EV variants on eBay! Any information of these tubes would be interesting. They were pure NOS and working great (of course)! They even liquidated all the small RF interferences I've had (haven't even had much but now I can almost throw my phone on top of my amplifier and nothing changes). Most of all I would like to know from some Novosibirsk factory number coding expert what is the year of the production of these matched 6N6P-EV tubes, grateful already.
![IMG_0921.jpg IMG_0921.jpg](https://www.whatsbestforum.com/data/attachments/133/133736-1e066e2125c0627170c463858a445e03.jpg)
Br, Me
So, I was trying to find matching pair of 6N6P tubes for my Feliks Audio Echo 2 and my local retailer who is very reputable got these 6N6P-EV's which I couldn't find any information but the link he gave me. It's weird that you really can't find too much information of these tubes from the internet. No one's even selling fake printed -EV variants on eBay! Any information of these tubes would be interesting. They were pure NOS and working great (of course)! They even liquidated all the small RF interferences I've had (haven't even had much but now I can almost throw my phone on top of my amplifier and nothing changes). Most of all I would like to know from some Novosibirsk factory number coding expert what is the year of the production of these matched 6N6P-EV tubes, grateful already.
![IMG_0921.jpg IMG_0921.jpg](https://www.whatsbestforum.com/data/attachments/133/133736-1e066e2125c0627170c463858a445e03.jpg)
Br, Me