NOS Russische NEVZ factory made in Russia VI-1979 tested and matched on the Amplitrex AT1000 tubetester. These lovely NOS Russian equivalents of the US 6SN7 are very good sounding according to users of the internet. Very solid build these tubes are here to last. Matched pairs and quads available! Comes from boxes with 100 tubes in bulk all same date VI-1979. Comes in a white generic box. The NEVZ plant is a subsidiary of the Svetlana corporation acting as a production unit as from 1941 producing radio and radar valves.

Te koop aangeboden matched pairs RCA 5963 een 100% equivalent van de ECC82 12AU7 5814. Deze buis met rode RCA opdruk kenmerkt zich door perfecte symmetrie in plate current (10,4/10,4 mA) en mutual conductance (2200/2200 uMhos). Zelfs de curves overlappen elkaar bijna perfect. Een mooie buis uit begin jaren 60 met 17 mm plates en een kleine O - getter. Een perfecte vervanger voor matig klinkende nieuwe productiebuizen van Tung Sol of Sovtek of andere merken. Gaan 10.000 uur mee dus longlife, heeft de kenmerken van de legendarische Telefunken ECC802S maar dan betaalbaar. Ook matched quads leverbaar op verzoek.

Op verzoek ook leverbaar matched pairs RCA 5963 met foil D-getters of double support O-getters voor 98 euro per matched paaartje van 2 buizen. Stuur een email naar: tubesandrecords@ziggo.nl.

Rare estate find. Philips Miniwatt ECC82 early 1960's made in Holland @ the famous 'Heerlen' factory. They all have the delta sign on the tube.  Some tubes have print rubbed off/fallen off due to age. Comes in Philips box. 

This tube is true part of the family. Produced in late 50s (this specific tubes is from 1959) to early 60s. Sound, although is not as musical as long plates, but it’s a pleasure to listen to it. One of the truly great 12AU7 tubes. The sound is transparent, romantic with good mixture of warmth and top register sparkle. Airy and relaxed – you just want to keep listening to it. What strikes the most about this tubes is how smooth it is and how good treble sounds. Amperex is a great example of what I’m talking about, but this tubes has outdone Amperex in treble department. HIGHLY RECOMMENDED.

There is no other tube that can create the magic of Telefunken. The magic comes primarily from airiness – it’s like a bit of reverberation after a note is played. So the purists would say it’s not precise and I would agree, but music is not about precision – it’s about enjoyment and the airiness adds to the enjoyment significantly by making soundstage much bigger. Highly Recommended.

 For sale are matched pairs NOS 'made in USA' Sylvania JAN 6189 tubes. These are among the best NOS tubes nowadays available and very sought after. 

These are SQ ECC82 and have a 10.000 hour heater life, resistant up to 500G shock, filaments stays like new after many on/off's, very low failure rate and very tight tolerances. Because of the 'new' filaments this tube will have lower hum. Thus more silent in for example phono stages. Made in USA 6-67 so 51 years old. Can replace 12AU7, ECC82, 5814, 5963, 6350 etc..

NOS Made in USA by Sylvania.  Fat black plate, horse shoe getter and copper support. Gold print, best of 6350 ever made. Great for VTL Amplifier Nos in original box. Also Manley and Emillé Cha'am. Matched pair and quads are available.  Also available matched pairs Sylvania 6350 ***** made in USA week 20 1957, these are a little more detailed, less warmth then the gold print. Matched on Amplitrex AT1000. 10.000 hour heater so longlife. Price is for a matched pair of 2 tubes. (The best sounding 6350 are Sylvania black plates 1950's followed by GE black plates then RCA). The 6350 is a very high quality dual-triode. It was originally designed for high-speed digital computers (IBM) and was manufactured using very high quality materials under rigid controls and underwent rigorous testing. The 6350 works well as a cathode follower or inverter. The 6350 is used in VTL and Joule Electra gear. (EP = 300V max, typical operation: EP = 150V, eG1 =-5V, IP = 11 mA, GM = 4600, RP = 3900 Ohms, Mu=18).

Top quality Mil. Spec. audio tubes manufactured for the Armed Forces in the United States by renowned Sylvania; 1960’s and 1970’s production. These tough 9 pin miniature glass double triode tubes, come with gray ribbed plates, thick mica spacers, and top halo getters. They are glass etched 5963 U.S.A. and printed in green variably USN JAN CHS SYLVANIA MADE IN U.S.A. Made 1972 week 39. Price is for one matched pair of 2 tubes.

NOS 1960 USA made 5963 SQ equivalent of ECC82, 5814, 12AU7. Long plates type, sound and build is comparabele to Telefunken ECC802S. A must buy for owners of tube amps with ECC82/12AU7. Sold in matched pairs matched on Amplitrex AT1000. Price = for one pair = 2 tubes. Overlooked by the tube buying public but a very good tube, lasting 10.000 hours due to heavy cathode.

This is NOS East German NOS 1970's production. Very thick glass enveloppe, quiet, low microphonics. Very good tube. Replaces 12AU7, 5963, 5814WA, 6350, E82CC etc.. Matched in pairs on the Amplitrex AT1000. Price = for 1 matched pair of 2 tubes!

Longlife version of ECC82 12AU7 5814A 5963. Made by GE 70's production. Very reliable tubes. Price = for 1 tube.