RCA 12AU7A Clear Tops

RCA 12AU7A Clear Tops
Made in the USA from the late 1950's until late 1960's.
Here are the words you might have heard about this tube : Vivid, vibrant with high resolution, rich-full sound throughout the frequency range!! Yes, all are true... If you want to liven up your system, this tube would be the ticket. However, if you have a bright sounding system with metal tweeters for example, the highs could be over pronounced. All the tubes in stock have side D-Square Getters. We have many versions in stock as follows :



RCA 12AU7A Clear Tops 1959 White Label Side D-Getter Red Waxed on the Glass in Original Boxes

Quantity  in Stock : 1 pcs
Price :  Grade A @ US$42,00/each ; US$89,00/matched pair
         
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RCA JAN 12AU7A Clear Tops 1960-63 Red Label Side D-Getter Military Spec stock in New White Boxes

Quantity  in Stock : 33 pcs
Price :  Grade A @ US$36,00/each ; US$74,00/matched pair
          Grade B @ US$30,00/each ; US$64,00/matched pair  

          Grade C @ US$20,00/each ; US$40,00/matched pair

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RCA 12AU7 Clear Tops 1960-62 Red Label Side D-Getter, The Hickok Elect. Instruments Co. Supply for Military Use in Original Boxes

Quantity  in Stock : 37 pcs 
Price :  Grade A @ US$36,00/each ; US$74,00/matched pair
          Grade B @ US$30,00/each ; US$64,00/matched pair

          Grade C @ US$20,00/each ; US$40,00/matched pair


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RCA 12AU7 Clear Tops 1965 Side D-Getter, Labeled and Boxed as Motorola Supply in Original Boxes
 
Quantity  in Stock : 5 pcs
Price :  Grade A @ US$30,00/each ; US$64,00/matched pair
          Grade B @ US$24,00/each ; US$52,00/matched pair  

          Grade C @ US$16,00/each ; US$34,00/matched pair


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RCA 12AU7 Clear Tops Side D-Getter, PULL-OUT Tubes from Military Gear Testing NEW in White Boxes >>> Many of these may be "never used" but we have classified them as pull-out because of partial or missing labels, so these are BEST BUY!!
 
Quantity  in Stock : 54 pcs 
Price :  Grade A @ US$19,00/each ; US$42,00/matched pair
          Grade B @ US$14,00/each ; US$32,00/matched pair

          Grade C @ US$6,00/each ; US$14,00/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.

4 comments:

  1. These old RCAs are great and arrived very well packaged. Great service from Koray.

    Andy G

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  2. This a very lively tube which energized my Audio Note OTO SE signature amp which has a tendency to be a bit too civilized. Preamp section has one ECC82/12AU7. RCA added a punch and put some accents on high frequencies, which is good for this amp. Both triodes are perfectly matched!

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  3. Daha az bulunan ve yüksek fiyatlı 12AU7 lambalar da kullandım ancak hiç birinde detay ve çözünürlük bunun seviyesinde artmadı , teşekkür ederim Koray Bey hiç bir lamba alışverişimde şaşırtmadınız beni , lamba konusunda en önemli kıstas güven bence ve Koray Bey bu konuda çok değerli

    ReplyDelete
  4. Purchased an RCA clear top for ECC82 position in Jadis preamplifier. Extremely good service and fast shipping from Koray. Tube appears to be quiet, very smooth and delicate, excellent detail. Objective was to slightly brighten Sonus faber speaker's rolled off HF. This tube definitely achieves that goal without harshness or glare. Need some more listening time, but so far so good!

    ReplyDelete

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