EI-Elektronska Industrija ECC83
Awesome sounding 12ax7 from pre-war Yugo...
Ei Yugoslavia bought all of the old Telefunken stock and equipment in the 1970s, and produced these tubes, identical to original Telefunken smoothplates! These were about the best to come out of Eastern Europe in the late 1970s, they even flash orange when energized like the vintage European tubes do. Available under several labels as Edicron, RSD, National, Trigon. Tight-matched pairs available.Quantity in Stock : Out of Stock!
Price: Grade A @ US$47,00/ea ; US$98,00/matched pair
Grade B @ US$39,00/ea ; US$84,00/matched pair
Grade C @ US$25,00/ea ; US$52,00/matched pair
Grade A - The best in the stock. Lowest noise and microphony with the tightest balanced sections we have available. This is typically 10% or often tighter given the large volumes of our stock.
Grade B - Low noise and microphonics with a section balance typically between 15% and 20%, but may be higher depending on available stock.
Grade C - Lowest noise but slightly microphonic. Section balance will be similar to Grade A or B. This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player