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International Service Master 6HS6

International Service Master 6HS6
IF/RF sharp cutoff pentode with very high transconductance at a low plate voltage. Used in the SB/HW transceivers and some Fisher, Scott FM tuners. A scarce tube today!

Quantity in Stock : 17 pcs
Price : US$24,00/each

IBM / Miniwatt Dario 6211 Holland

IBM / Miniwatt Dario 6211 Holland w/welded plates
A rugged medium-mu (27) tube with operational specs somewhere between 12AT7 and 12AU7. Despite its slightly lower plate voltage and current ratings, this tube can safely replace the 12AU7/ECC82 and 12AT7/ECC81 in many applications.
Very rare tubes with exceptional build quality!! Just like the Telefunken's these have similar rugged construction with side flanges and welded plates as seen on the photo above. Made in Holland by Heerlen factory and imported to France for IBM. All tubes in stock have identical production codes.
 
Quantity is Stock : 10 pcs
Price : Grade A @ US$79,00/each ; US$163,00/matched pair
          Grade B @ US$69,00/each ; US$143,00/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. 
 
  

TELEFUNKEN 6211 (<>) W.Germany

TELEFUNKEN 6211  W. Germany (<>) w/diamond bottom
A rugged medium-mu (27) tube with operational specs somewhere between 12AT7 and 12AU7. Despite its slightly lower plate voltage and current ratings, this tube can safely replace the 12AU7/ECC82 and 12AT7/ECC81 in many applications.
The Telefunken 6211 has identical construction and sound to the legendary Telefunken ECC802S/12AU7WA with a little more gain when used as 12AU7. Our stock is brand new and consisting of 3 production runs with the same U-digit serial numbers. The U-digit series are known as the best made and rare out of all the Telefunken 6211 tubes.
 
Quantity is Stock : 24 pcs
Price : Grade A @ US$79,00/each ; US$163,00/matched pair
          Grade B @ US$69,00/each ; US$143,00/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. 




         


SYLVANIA JAN CHS 5Y3WGTA Brown Base

SYLVANIA JAN CHS 5Y3WGTA Brown Base Black Plates 1950's
The best of Sylvania! Ruggedized 5Y3's with brown micanol bases. These have black plates with top square getters and gold lettering on glass just like the other military versions of industrial Gold Brand Sylvania's. All in original military boxes packed in mid and late 1950's.

Quantity in Stock : 31 pcs
Price : US$32,00/each

RCA JAN CRC 5Y3GT

RCA JAN CRC 5Y3GT Smooth Black Plates Early 1950's
The best 5Y3 ever made by RCA. These are mil spec from early 1950's, having smooth black plates and bottom square getters. Available in original military boxes and white boxes.

Quantity in Stock : 34 pcs
Price : US$32,00/each in original boxes
          US$29,00/each in white boxes 

General Electric USN 5Y3GTB / 6087

General Electric USN 5Y3GTB / 6087 Black Plates Brown Base
Made in the USA. Special quality, hi-reliance 5Y3 type with rugged construction, produced by GE in the 1950's and early 60's. These have brown micanol bases and black plates with top square getters.

Quantity in Stock : 8 pcs
Price : US$32,00/each

General Electric JAN CG 5Y3GT

General Electric JAN CG 5Y3GT Black Plates Early 1950's
Military spec GE rectifier made in USA back in the early 1950's. Available in white and original boxes.

Quantity in Stock : 19 pcs
Price : US$26,00 in original box
          US$23,00 in white box


General Electric 5Y3GT

General Electric 5Y3GT Gray Plates
Quality rectifier! Made in USA. Brown and black base versions are available.

Quantity in Stock : 11 pcs
Price : Black Base @ US$16,00/each
          Brown Base @ US$18,00/each

TUNG-SOL JAN CTL 6SN7WGT 1962 USA

TUNG-SOL JAN CTL 6SN7WGT Black Plates 1962 USA
Black triangular plates, top O-getter, dark silver lettering on brown base, all have the same date codes, packed on March 1962 in original military boxes. Excellent slam and dynamics! These have really clear good mid range and solid bass but the top end is not as refined as the famous Tung-Sol VT-231 with round plates. Highly recommended as a driver tube for power amps. Available in matched pairs and singles.

 
Quantity in Stock : 1 pcs 
Price : Grade A @ US$53,00/each ; US$108,00/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.

TUNG-SOL 12AU7 USA

TUNG-SOL 12AU7 USA
Here is the whole range of the 12AU7 types ever manufactured by Tung-Sol Lamp Works, USA : The Black Glass Black Plates type of late 1940's, the Black Glass Gray Plates type of early 1950's, the Clear Glass Long Gray Plates D-Getter type of mid-late 1950's and the Clear Glass Large Gray Plates O-Getter type of early-mid 1960's... Each type has its own sonic signature specifically but all share one greatest common divider : Good Sound!

In general the Tung-Sol's have smoother upper end compared to RCA Clear Tops. The D-Getter types have good resolution and transparency with nice tones whereas the later O-Getter types are on the more neutral side. The most sought-after ones are the rare Black Glass types.

The larger part of the Black Glass and other D-Getter types came as the Hickok Elect. Instr. Co. spare parts supply that we recently acquired. These are mostly in well stored original boxes with a packing date of June 1962. Besides the few other American brands, the Hickok's supply includes a larger amount of the pre-1963 RCA Clear Tops as well.



TUNG-SOL JTL 12AU7 Black Glass Black Plates Late 1940's in white and original boxes

Quantity in Stock : 7 pcs
Price :  Grade A @ US$79,00/each ; US$163,00/matched pair
           Grade B @ US$69,00/each ; US$143,00/matched pair

           Grade C @ US$39,00/each ; US$80,00/matched pair

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TUNG-SOL JTL 12AU7 Black Glass Gray Plates Early 1950's in white and original boxes
 
Quantity in Stock : 26 pcs
Price : Grade A @ US$57,00/each ; US$119,00/matched pair
          Grade B @ US$51,00/each ; US$107,00/matched pair
          Grade C @ US$32,00/each ; US$65,00/matched pair


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TUNG-SOL JTL 12AU7 Clear Glass Long Gray Plates D-Getter mid-late 1950's in white and original boxes
 
Quantity in Stock : 58 pcs
Price :  Grade A @ US$32,00/each ; US$68,00/matched pair
           Grade B @ US$26,00/each ; US$56,00/matched pair
           Grade C @ US$14,00/each ; US$30,00/matched pair



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TUNG-SOL  12AU7 Clear Glass Large Gray Plates O-Getter mid 1960's in white boxes
 
Quantity in Stock : 15 pcs
Price :  Grade A @ US$26,00/each ; US$55,00/matched pair
           Grade B @ US$20,00/each ; US$45,00/matched pair
           Grade C @ US$9,00/each ; US$20,00/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. 


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