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RCA 6SN7GT Gray / Smoke Glass

RCA 6SN7GT Gray / Smoke Glass Early 1950's USA
One of the best sounding 6SN7 type from RCA. Limited quantity in stock. Mostly with military JAN CRC label. These have gray coated glass, staggered black plates, copper grid posts and bottom D-getter. These tubes come screened for low noise and microphonics.

Quantity is Stock : 7 pcs
Price : US$69,00/each; US$142,00/matched pair

RCA JAN CRC 6SN7GT / GTB

RCA JAN CRC 6SN7GT / GTB Early and Mid 1950's USA
Military stock tubes by RCA. These have clear glass, staggered black plates and bottom D-Getter. A few of these have copper grid posts. Some come in original boxes. All of these have been screened for low noise and microphonics. Due to the limited quantity on hand, they are individually priced as pairs and singles as follows :

Quantity in Stock : 14 pcs
Prices :

- RCA JAN CRC 6SN7GTB 1956 USA same batch in Original Military Boxes @ US$56,00/each; US$114,00/matched pair

- RCA JAN CRC 6SN7GTB Mid 1950's USA in white boxes @ US$49,00/each; US$102,00/matched pair

- RCA JAN CRC 6SN7GT Early-Mid 1950's USA copper grid posts, in white boxes @ US$56,00/each; US$114,00/matched pair


RCA 6SN7GT / GTB

 
RCA 6SN7GT / GTB Late 1950's and 1960's USA
The common features of the tubes in this group are : Clear Glass, Staggered Black Plates and D-Getters. All of these have been screened for low noise and microphonics. Due to the limited quantity on hand, they are individually priced as pairs and singles as follows :

Quantity in Stock : 10 pcs
Prices :

- RCA 6SN7GTB Late 1960's, short bottle, black plates, side D-Getter w/balanced sections @ US$32,00/each; US$66,00/matched pair

- RCA 6SN7GTB Late 1960's, Red Label, short base, black plates, bottom D-Getter w/balanced sections @ US$39,00/each; US$80,00/matched pair

- RCA 6SN7GTB Early 1960's, Red Label, black plates, bottom D-Getter w/balanced sections @ US$42,00/each; US$86,00/matched pair

- RCA 6SN7GTB Late 1950's, Silver Label, black plates, bottom D-Getter w/balanced sections @ US$45,00/each

- RCA 6SN7GT 1950's, Silver Label, black plates, copper grid posts, bottom D-Getter w/balanced sections @ US$48,00/each; US$98,00/matched pair






MAZDA / RSD 5Y3GT France

 
 
MAZDA / RSD 5Y3GT France 1950's 
An extremely rare 5Y3GT from Mazda, France. These have same gray plate structure as the famous Mazda 5Y3GB in tubular glass with bottom square getters.  They are indirectly heated, slow-start-up 5Y3 type just like Bendix 6106 and Mazda 5Y3GB. All tubes in stock are labeled for the German re-labeler company RSD.

Quantity in Stock : 24 pcs
Price : US$32,00/each

RAYTHEON 12AU7 ASSORTED LONG PLATE SELECTION

RAYTHEON 12AU7 ASSORTED LONG PLATE SELECTION
Here is a selection of the Long Plate type Raytheon 12AU7's from 1950's and 60's. All are low stock items. These tubes will come screened and selected for low noise and microphonics.

 
Raytheon 12AU7 Long Gray Plates
These are from early-mid 1960's with long ribbed gray plates and O-getter. Some are commercial 12AU7A type in original boxes and some from military stock with JRP 12AU7 label.

Quantity in Stock : 14 pcs
Price : US$22,00/each; US$48,00/matched pair
         (Add $4,00/each for those with original box)
 



Raytheon 12AU7 Long Black Plates
We have two small batches with D-Getter from 1950's and with O-Getter from early 1960's. The latter ones have their labels partly smeared but they are NOS and test very good.

Quantity in Stock : 9 pcs
Price : Tubes with O-Getter @ US$24,00/each; US$50,00/matched pair
          Tubes with D-Getter @ US$30,00/each; US$62,00/matched pair  

SYLVANIA JAN CHS 12SN7GT

SYLVANIA JAN CHS 12SN7GT 1960's USA
The 12v heater sister of well known Sylvania chrome top 6SN7GT's. These also have T-shape black plates. Our stock tubes are spare parts selected for test equipment manufactured by Sperry Gyroscope Company, US. The yellow stickers indicating the "selected part" have come off mostly.

Quantity in Stock : 7 pcs
Price :  Grade A @ US$20,00/ea ; US$43,00/matched pair
           Grade B @ US$14,00/ea ; US$30,00/matched pair
         
           Grade C @ US$8,00/ea ; US$16,00/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.

HYTRON JAN CHY 12SN7GT

HYTRON JAN CHY 12SN7GT Early 1950's USA
The 12v heater sister of famous Hytron 6SN7GT's. These have T-shape black plates with 2 and 3 rivets, a.k.a Badboy style. Excellent choice for life-like sound with elegant character.

Quantity in Stock : 14 pcs
Price :  Grade A @ US$20,00/ea ; US$43,00/matched pair
           Grade B @ US$14,00/ea ; US$30,00/matched pair
         
           Grade C @ US$8,00/ea ; US$16,00/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 5814 & 6189 ASSORTED RARE SELECTION

SYLVANIA 5814 / 6189 / 12AU7 ASSORTED RARE SELECTION
Here is the real "hard to find" stuff :



SYLVANIA 5814 Triple Mica Black Ribbed Plates with Square Getter
An extremely rare one from early 1950's. Our stock tubes are mostly labeled for Heintz and Kaufman. Some have their labels missing, but all are NOS. Their construction is quite unique with the third mica elevated quite bit higher on the top of the second one. If you're after a classic warm sound with good soundstage, these would be a good choice.

Quantity in Stock : 14 pcs
Price : Grade A @ US$39,00/ea; US$80,00/matched pair
          Grade B @ US$32,00/ea; US$69,00/matched pair
         
          Grade C @ US$19,00/ea; US$40,00/matched pair
 
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SYLVANIA 6189 Triple Mica Black Ribbed Plates with Square Getter
Another extremely rare one from early 1950's. These have identical construction to the 5814's above. Our stock is very low and labels vary. If you're after a classic warm sound with good soundstage, these would be a good choice.
 
Quantity in Stock : 9 pcs
Price : Grade A @ US$39,00/ea; US$80,00/matched pair
          Grade B @ US$32,00/ea; US$69,00/matched pair
         
          Grade C @ US$19,00/ea; US$40,00/matched pair
 
 
 

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SYLVANIA JHS 12AU7 1950's Black Plates with Square-Getter
These might be as rare as the above. Only 5 pcs in stock. They have black ribbed plates but with center pinch.

Quantity in Stock : 5 pcs
Price : Grade A @ US$27,00/ea; US$59,00/matched pair
          Grade B @ US$22,00/ea; US$49,00/matched pair


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SYLVANIA JHS 12AU7 1950's Gray Plates with Square-Getter
Similar structure to the above Black Plate type. These have gray ribbed plates with center pinch.

Quantity in Stock : 7 pcs
Price : Grade A @ US$20,00/ea;  US$44,00/matched pair
          Grade B @ US$14,00/ea; US$32,00/matched pair


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SYLVANIA 6189/12AU7WA GOLD BRAND Triple Mica Gray Plates
Cool stuff! Very rare find too. These gems have identical structure to the 5814 TMGP but with more liquidity and insight to the music. The 4 tubes in stock have identical serial numbers : 62-D and excellent test scores! All Grade-A!!

Quantity in Stock : 4 pcs
Price : Grade A @ US$39,00/ea; US$80,00/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 JHS 5814A Triple Mica Gray Plates

SYLVANIA JHS 5814A USA Triple Mica Gray Plates
These are from early 1960's (1963-64) and have robust build with triple thick mica spacers, side support rods, copper grid posts and halo getter. Very low noise and microphonics thanks to the build quality. Very balanced/cohesive/neutral/musical sounding tubes.

Quantity is Stock : 34 pcs
Price :  Grade A @ US$30,00/ea ; US$62,00/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.

SYLVANIA JAN 5814A Long Gray Plates

SYLVANIA JAN 5814A USA Long Gray Plates 
Made in USA by Sylvania for military use. Our stock are from several production runs between 1967-76. Very musical and reliable quality tubes that will come checked for low noise and microphonics.

Quantity in Stock : More than 100 pcs
Price : In original box @ US$17,00/each ; US$36,00/matched pair
          In white box @ US$14,00/each; US$30,00/matched pair

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