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MELZ 1578 / 6H8C / 6SN7 Black Plates w/Round Holes USSR

MELZ 1578 / 6H8C Black Plates w/Round Holes 1976 USSR
Made by MELZ Factory (Moscow, USSR). Metal base, black plates with holes. Military equipment with OTK label. An excellent 6SN7 with outstanding engineering and beautiful sound. These are the genuine 1578's which are ultra rare nowadays. All from the same batch of 1976. NOS and MINT.

Quantity in Stock : 19 pcs
Price :  Grade A @ US$139,00/ea; US$283,00/matched pair;
           US$571,00/matched quad

          
Grade B @ SOLD OUT!  




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.

Mullard ECC81 / 12AT7 Gt. Britain

Mullard ECC81/12AT7 Gt. Britain
Excellent ECC81's made by Blackburn factory of Mullard and labeled for EL-MENCO/USA which was a well known label in capacitors. A bulk stock with factory code of "VF3" and "B XXX" from 1970-71. These currently rare tubes have plates with 3 side holes typical to the classic Mullard ECC81's of early days. NOS and MINT!

Quantity in Stock : 20 pcs
Price : Grade A @ US$39,00/ea ; US$83,00/matched pair
          Grade B @ US$35,00/ea ; US$75
,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.

Eimac 8165/4-65A

Eimac 8165/4-65A USA
Power tetrode primarily used in broadcast applications. Here is the spec data : Eimac 8165/4-65A

Quantity in Stock : 5 pcs
Price : US$36,00/each

Early (NOS) Russian 6SN7GT

Early (NOS) Russian 6SN7GT
These are actually 6H8C which is Russian 6SN7GT equivalent, and exported to the West back in the cold war years. Technically built to fulfill Russian Military standards, these are quality tubes and sonically superior to today’s current production! Our batches are from 1960's and 70's.

Quantity is Stock : 14 pcs
Price : Grade A @ US$29,00/ea ; US$60,00/matched pair
          Grade B @ US$24,00/ea ; US$50,00/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.

RCA 7058 / 12AX7A USA

RCA 7058 / 12AX7A USA 
According to the RCA spec sheet, the 7058 is a 12AX7 with non center tapped filament. However, this is not the case with the tubes we offer here : All the tubes in stock have center tapped heaters  and do perfectly work in both 6,3 and 12,6 volts circuits. That means these are simply standard RCA 12AX7A as pictured above but labeled as 7058. Very fine tubes with very low noise and great sound. So, thanks to the labeling this is an opportunity for you to have an RCA 12AX7 at about the half price of a 12AX7 labeled one. Most of the tubes in stock are labeled and boxed for Motorola.

Quantity in Stock : 34 pcs
Price : Grade A @ US$37,00/ea ; US$79,00/matched pair
          Grade B @ US$32,00/ea ; US$69,00/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.

General Electric JAN 5998A USA

General Electric JAN 5998A USA 1974 Black Plates
Military stock 5998A by GE, made in 1974 USA. All tubes are from the same batch and have black plates with dual top square getters. These have dynamic sound with good bass.

Quantity in Stock : 22 pcs
Price : US$45,00/each; US$96,00/matched pair
         (Add $10,00/each for the tubes with balanced sections)
 


Amperex PL5557 / FG17

Amperex PL5557 / FG17 Made in Italy
Mercury vapor thyratron - basically a grid controlled 866. We have no way to test these but all in NOS & MINT condition.

Quantity in Stock : 10 pcs
Price : US$125,00/each

RCA 7586 Nuvistor

RCA 7586 Nuvistor
Medium-mu audio triode tube. The first Nuvistor ever released back in 1959. These were employed in AKG/Norelco C-12A, C-28 and Neumann U 63 64 series Microphones. We have a low stock of these with the same factory codes in MINT condition.

Quantity in Stock: 5 pcs
Price: US$25,00/each

RCA 6DS4 & CEI 6DS4 Nuvistor

RCA 6DS4 USA & CEI 6DS4 JapanHigh-mu triode Nuvistor tube. This is a remote cut-off 6CW4. Usually front-end tube in FM receivers.

Quantity in Stock : 46 pcs
Price : CEI 6DS4 Made in Japan @ US$12,00/each
          RCA 6DS4 Made in USA @ US$16,00/each

European Brands EF80 / 6BX6

European Brands EF80 / 6BX6
This pentode was used in Intermediate Frequency amplifiers for many types of equipment: radio, Radar but probably best known as the dominant workhorse of VHF television receivers. Nowadays it's popular for microphone amplifier applications. We have various European brands available. Here is a link to a very nice article about this tubes: http://www.r-type.org/articles/art-019.htm






Quantity in Stock : 24 pcs
Prices : RFT EF80 @ US$5,00/each
           Tungsram EF80 (some labeled as Hytron 6BX6) @ US$5,00/each
           Siemens & Pope & Philips EF80 (labeled as Telefunken) @ US$10,00/each
           Mullard (1957) EF80 @ US$18,00/each
           Telefunken EF80 (<>) @ US$18,00/each
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