Vintage RFT ECC83 tube (12AX7 equivalent). Made in East Germany.

Used. Price is for 1 tube. 

Cosmetic condition varies - from good to very good. Some letters or numbers can be worn off. For shipping tubes will be selected randomly.

All tubes were tested on my electronic tube tester (Orange VT-1000) and their test result is "Good". I guarantee they work properly. If a particular tube is problematic in real audio application (e.g. excessive noise, crackling), please let me know and you will get a refund or a replacement.

RFT ECC83 is slightly darker sounding than many others 12AX7/ECC83 tubes, which makes it perfect for overdrive channel of guitar amp. I use it myself and I love its sound. Perfect tube for guitar amps like Marshall, Ampeg VL or Mesa. You can read more about this tube on the web. RFT ECC83 receives great reviews. In my opinion description of this tube from thetubestore.com is very accurate:

 "The RFT ECC83 / 12AX7 is a durable tube with very low microphonics. The RFT ECC83 is well known as a fantastic hard rock "crunch" tube in Marshalls, Mesa-Boogies, and similar amps. They are slightly darker sounding than many other 12AX7/ECC83 tubes."

(thetubestore.com)