RCA 12ax7 Carbon Black Plates

1 Star2 Stars3 Stars4 Stars5 Stars (4 votes, average: 4.50 out of 5)
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“Absolutely wonderful sound! Enormous sound stage.  Super articulation without any harshness.  Tight Bass.  Possibly my favorite Black Plate.” Read

“Great gain, perfect clarity and frequency response. Awesome! Our favorite American NOS 12AX7.” Read

“The RCA/ Tung Sol 12AX7 Long Carbonized Black Plates with Sq. Getter NOS 1947/49 and later versions produced between 1950/56 are the best sounding options available – Period.” Read

One thought on “RCA 12ax7 Carbon Black Plates

  1. Fantastic tube. Very reach and warm, which could be a disadvantage, since the sound is not very well balanced – really depends on a sound you are going for. Going into coffee analogy – it is like Sumatra – a very dense, complex and strong flavor palette – but without bitterness of French Roast. I’m not going to write much about the tube – it’s been written and rewritten. Highly recommended if you are looking for a dark, warm vintage sound.

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