RCA 5814 and 6189 Black Plates Triple Mica

RCA JRC 5814A/WA and 6189 Black Plates Triple Mica
The military spec tube 5814 was developed by RCA around 1950 as a lower distortion, noise and microphonics 12AU7. Some tubes are labeled and boxed for Heintz and Kaufman. We have the 6189 type, another military and premium industrial standard as well. Both of them physically same tubes with black plates, triple mica, square-getter and support rods. The RCA 6189s in stock are branded for General Electric. These 1950's production tubes have smooth, balanced sound with good base. Matched pairs available.

Quantity in Stock : Out of Stock!
Price : Grade A @ US$44,00/ea ; US$90,00/matched pair
          Grade B @ US$39,00/ea ; US$80,00/matched pair

          Grade C @ US$19,00/ea ; US$40,00/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.


  1. Hi, I received yesterday my EZ80 tube in perfect condition and triple wrapped in bubble wrap.That was the first time I've bought from you but I'm now confident to buy more today.
    Thanks Bob.

  2. Got my match quad GE 6189 in excellent condition at reasonable price. My first transaction with you and i"m satisfied. I will refer your site in our local audiophile site. Until my next order. Many thanks.

  3. The RCA5814 are very special. A very unique sound. Laid back and relax. Big and warm sound. Not too warm. Vocal a little recess but integrated well with the other regions. Bass is godd detail but not a kick slam type, just more than enough to make the whole music flow seamlessly.


Related Posts with Thumbnails