Sylvania 6SL7GT / VT-229

Sylvania JAN CHS 6SL7GT / VT-229

Military spec tubes made in the 1940's. Very rare find. These tubes have long bottles with black bases, black plates and bottom-getters. One of the top-five 6SL7s. Sounds similar to later production Sylvania with its large soundstage. Some tubes are labeled and boxed for Heintz and Kaufman. Matched pairs available.
 

Quantity in Stock : Singles only!
Price : Grade A @ US$39.00/each ; US$83,00/matched pair
          Grade B @ US$34,00/each ; US$73,00/matched pair
          Grade C @ US$24,00/each ; US$53,00/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.