ECC81 12AT7 EI Yugoslavia NOS Telefunken long smooth plates GUITAR SOUND

ECC81 / 12AT7 EI Yugoslavia – Telefunken Smooth Plates – Rare - NOS NIB

One (1) very rare ECC81 / 12AT7 tube, manufactured by EI Niš, Yugoslavia, using original Telefunken technology.

Features long smooth gray plates, 17 mm, made in the Telefunken style. Each tube carries the etched 3A1 code for ECC81, together with the date code and EI factory code.

Note: this tube has slightly unbalanced anode currents, but it is fully functional and perfectly suitable for guitar amplifiers, including many Marshall and Fender amps.

• Extremely rare EI Yugoslavia ECC81 / 12AT7
• Long smooth gray Telefunken-style plates
• 17 mm plate construction
• Etched 3A1 ECC81 code on every tube
• NOS NIB, New Old Stock in original box
• Tested on Tesla BM215 tester

Even Telefunken never made a long smooth plate ECC81 / 12AT7 in this form, making this EI production especially interesting and collectible.

Auction is for ONE (1) tube only.

AS IS, WHAT YOU SEE IS WHAT YOU GET (ONE TUBE - 1 PCs)