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Don't see what you need? Contact us. We have many more tubes that are not yet listed. We also have new and good used tubes in most other numbers including preoctal, globe/balloon, octal, loctal, miniature, subminiature, metal, power, transmitter tubes and many more.

MDB Ventures Audio Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 6SL7GT / 5691 $70.00 Westinghouse 100% / 100% 1350: 1350 / 1250Gm used (OB) red base - gray rectangular ribbed plates - dual D top getters - mica getter shield - five mount posts - datecode:70-30
1 6SL7GT / 5691 $70.00 Westinghouse 100% / 100% 1200: 1200 / 1250Gm used (wb) red base - gray rectangular ribbed plates - dual D top getters - mica getter shield - five mount posts - datecode:70-22
1 6SL7GT / 5691 $50.00 Westinghouse 90% / 90% 1200: 1200 / 1250Gm used (wb) red base - gray rectangular ribbed plates - dual D top getters - mica getter shield - five mount posts - datecode:68-35
1 6SL7WGT $50.00 Tung-Sol 120% / 120% 1300: 1350 / 1250Gm NOS (OB) top getter - rectangular ribbed gray plates - torn box flap
1 6SL7WGT $50.00 Tung-Sol 110% / 120% 1300: 1350 / 1250Gm NOS (OB) top getter - rectangular ribbed gray plates
1 6SL7WGT $25.00 Raytheon 120% / 130% 1900: 2050 / 1250Gm NOS (wb) top getter - short round black plates - brown base
1 6SL7WGT $25.00 Sylvania 140% / 140% 1900: 1950 / 1250Gm NOS (OB) JAN - top getter - short round black plates - brown base
1 6SL7GT $20.00 GE 110% / 120% 1300: 1450 / 1250Gm NOS (OB) side getter - round silver plates - white lettering
1 6SL7GT $20.00 GE 110% / 110% 1350: 1350 / 1250Gm NOS (OB) side getter - round silver plates - white lettering
1 6SL7GT $20.00 GE 110% / 100% 1350: 1250 / 1250Gm NOS (OB) side getter - round silver plates - white lettering
1 6SL7GT $20.00 GE 110% / 110% 1300: 1300 / 1250Gm NOS (OB) bottom getter - round gray plates - white lettering
1 6SL7GT $20.00 GE 130% / 130% 1600: 1650 / 1250Gm NOS (OB) side getter - round silver plates - white lettering
1 6SL7GT $20.00 GE 140% / 130% 1750: 1600 / 1250Gm NOS (OB) side getter - short round silver plates - green lettering
1 6SL7GT $20.00 Motorola 100% / 100% 1250: 1250 / 1250Gm NOS (OB) bottom getter - round black plates - gray coat
1 6SL7GT $20.00 Ken-Rad 100% / 100% 1250: 1250 / 1250Gm NOS (OB) bottom getter - round silver plates
1 6SL7GT $20.00 CBS 110% / 110% 1450: 1450 / 1250Gm NOS (OB) side getter - round silver plates
1 6SL7GT $20.00 CBS 110% / 110% 1300: 1300 / 1250Gm NOS (OB) side getter - round silver plates
1 6SL7GT $20.00 RCA 115% / 120% 1400: 1500 / 1250Gm NOS (wb) bottom getter - round black plates - silver lettering
1 6SL7GT $20.00 RCA 125% / 130% 1650: 1700 / 1250Gm NOS (OB) side getter - round silver plates - red lettering - button base
1 6SL7GT $20.00 RCA 135% / 140% 1700: 1750 / 1250Gm NOS (OB) side getter - round silver plates - red lettering - button base
1 6SL7GT $20.00 RCA 120% / 110% 1300: 1250 / 1250Gm NOS (wb) side getter - round black plates - button base
1 6SL7GT $20.00 RCA 120% / 120% 1550: 1500 / 1250Gm NOS (OB) bottom getter - gray coat - silver lettering - torn box flap
1 6SL7GT $20.00 Sylvania 100% / 105% 1400: 1500 / 1250Gm NOS (OB) top getter - round black plates - yellow lettering
1 6SL7GT $20.00 Sylvania untested sealed in box NOS (OB) sealed in box
1 6SL7GT $20.00 Raytheon 110% / 110% 1300: 1300 / 1250Gm NOS (OB) bottom getter - round gray plates
1 6SL7GT $20.00 Raytheon 110% / 110% 1350: 1350 / 1250Gm NOS (OB) bottom getter - round gray plates
1 6SL7GT $20.00 Arcturus 110% / 120% 1250: 1300 / 1250Gm NOS (OB) bottom getter - round black plates
1 6SL7GT $15.00 Tung-Sol 110% / 110% 1300: 1400 / 1000Gm used (wb) bottom getter - round black plates
1 6SL7WGT $10.00 Sylvania 120% / 120% 2050: 2050 / 1250Gm used (wb) top getter - brown base - round ribbed black plates - green lettering
1 6SL7WGT $10.00 Sylvania 110% / 120% 1500: 1700 / 1250Gm used (wb) chrome top - brown base - US Navy
1 6SL7GT $10.00 Raytheon 120% / 120% 1600: 1600 / 1250Gm used (wb) chrome top - brown base
1 6SL7GT / VT-229 $8.00 Sylvania 110% / 110% 1150: 1250 / 1000Gm used (wb) JAN - bottom getter - round black plates
1 6SL7GT / VT-229 $8.00 National Union 120% / 120% 1500: 1500 / 1250Gm Used good (rb) (GT) JAN - gray coat - bottom getter
1 6SL7GT $8.00 RCA 130% / 120% 1600: 1500 / 1000Gm used (ob) bottom getter - round black plates - silver lettering
1 6SL7GT $8.00 RCA 110% / 120% 1500: 1300 / 1000Gm used (rb) bottom getter - gray coat - round black plates - silver lettering
1 6SL7GT $8.00 RCA 110% / 110% 1300: 1300 / 1000Gm used (rb) bottom getter - round black plates - red lettering
1 6SL7GT $7.50 GE 120% / 120% 1400: 1450 / 1250Gm used (OB) side getter - round silver plates - red lettering
1 6SL7GT $7.50 GE 115% / 120% 1350: 1400 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $7.50 GE 115% / 110% 1250: 1350 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $7.50 GE 105% / 120% 1300: 1450 / 1000Gm used (rb) side getter - round silver plates - white lettering
1 6SL7GT $7.50 GE 140% / 115% 1600: 1300 / 1000Gm used (rb) side getter - round silver plates - white lettering
1 6SL7GT $7.50 GE 140% / 120% 1750: 1500 / 1000Gm used (rb) side getter - round silver plates - red lettering
1 6SL7GT $7.50 GE 100% / 100% 1100: 1100 / 1000Gm used (rb) side getter - round silver plates - white lettering
1 6SL7GT $7.50 GE 130% / 130% 1400: 1400 / 1000Gm used (wb) side getter - short round silver plates - white lettering - tall bottle
1 6SL7GT $7.50 Ampeg by Sylvania 110% / 110% 1300: 1300 / 1250Gm used (ob) top getter - round black plates
1 6SL7GT $7.50 Ken-Rad 115% / 120% 1350: 1400 / 1000Gm used (rb) bottom getter - round silver plates
1 6SL7GT $7.50 National Union 110% / 110% 1300: 1300 / 1000Gm used (ob) bottom getter - black coat
1 6SL7GT $7.50 Crosley 120% / 110% 1150: 1000 / 1000Gm used (wb) bottom getter - round silver plates
1 6SL7GT $6.00 RCA 100% / 100% 1250: 1300 / 1250Gm used (rb) (GT) gray coat - silver lettering
1 6SL7GT $6.00 RCA 100% / 110% 1100: 1300 / 1250Gm used (rb) (GT) bottom getter - gray coat - silver lettering
1 6SL7GT $5.00 GE 100% / 100% 1250: 1250 / 1250Gm used (ob) chrome top - top getter - round gray plates
1 6SL7GT $5.00 GE 110% / 110% 1300: 1250 / 1000Gm used (L) bottom getter - round silver plates - cracked base
1 6SL7GT $5.00 GE 115% / 100% 1350: 1200 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $5.00 GE 100% / 110% 1100: 1200 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $5.00 CBS 100% / 105% 1200: 1250 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $3.00 Zenith 90% / 100% 1150: 1200 / 1250Gm used (rb) chrome top - top getter - round black plates
1 6SL7GT $3.00 GE 90% / 95% 1100: 1150 / 1000Gm used (L) side getter - round silver plates
1 6SL7GT $3.00 GE 90% / 90% 1100: 1100 / 1250Gm Used (L) (GT) round silver plates - bottom getter
1 6SL7GT $3.00 Zenith 90% / 95% 900: 1100 / 1000Gm used (L) bottom getter - round silver plates
1 6SL7GT $2.00 Ken-Rad 85% / 90% 900: 900 / 1000Gm used (L) bottom getter - round silver plates
1 6SL7GT $2.00 Crosley 85% / 90% 1100: 1150 / 1250Gm Used (L) (GT) round silver plates - bottom getter
1 6SL7GT $6.00 Sylvania 110% / 110% 1350: 1350 / 1250Gm used (L) top getter - round black plates - yellow lettering
1 6SL7GT $5.00 CBS 100% / 100% 1200: 1250 / 1250Gm used (L) bottom getter - round black plates
1 6SL7GT $5.00 Bell and Howell 105% / 110% 1300: 1350 / 1250Gm used (L) bottom getter - round black plates
1 6SL7GT $3.00 RCA 90% / 90% 1000: 1000 / 1250Gm used (L) bottom getter - round black plates - broken locator pin - red lettering
1 6SL7GT $3.00 GE 90% / 90% 1100: 1100 / 1250Gm used (L) side getter - round silver plates - red lettering
1 6SL7GT $6.00 GE 110% / 110% 1400: 1450 / 1250Gm used (L) side getter - round silver plates - white lettering (au-2a)
1 6SL7GT $6.00 GE 110% / 110% 1350: 1350 / 1250Gm used (L) top halo getter - rectangular ribbed gray plates - white lettering (au-2a)
1 6SL7GT $6.00 GE 110% / 110% 1200: 1250 / 1250Gm used (L) bottom getter - round silver plates - white lettering (cat: 401-179) (au-2a)
1 6SL7GT $6.00 GE 110% / 130% 1450: 1500 / 1250Gm used (L) side getter - round silver plates - white lettering (au-2a)
1 6SL7GT $6.00 Sylvania 120% / 130% 1600: 1500 / 1250Gm used (L) bottom getter - round gray plates - green lettering (au-2a)
1 6SL7GT $6.00 Raytheon 110% / 110% 1250: 1250 / 1250Gm used (L) bottom getter - round black plates (au-2a)
1 6SL7GT $5.00 CBS 100% / 110% 1250: 1350 / 1250Gm used (L) side getter - round silver plates (au-2a)
1 6SL7GT $5.00 Sylvania 100% / 110% 1300: 1300 / 1250Gm used (L) top getter - green lettering (au-2a)
1 6SL7GT $3.00 GE 90% / 90% 1100: 1100 / 1250Gm used (L) bottom getter - round silver plates - cracked base - white lettering (au-2a)
1 6SL7GT $2.00 Sound Inc by Sylvania 85% / 85% 1000: 1000 / 1250Gm used (L) top getter - round black plates (au-2a)
1 12SL7GT / VT-289 $25.00 RCA 120% / 130% 1450: 1300 / 1250Gm NOS (OB) sealed in box - JAN (cat:au2a)
1 12SL7GT / VT-289 $25.00 RCA 120% / 120% 1400: 1400 / 1250Gm NOS (OB) sealed in box - JAN (cat:au2a)
1 12SL7GT / VT-289 $25.00 RCA 110% / 110% 1350: 1300 / 1250Gm NOS (OB) sealed in box - US Navy (cat:au2a)
1 12SL7GT / VT-289 $25.00 Ken-Rad 100% / 100% 1250: 1250 / 1250Gm NOS (OB) sealed in box - JAN (cat:au2a)
1 12SL7GT / VT-289 $30.00 Sylvania 120% / 120% 1350: 1350 / 1250Gm NOS (OB) JAN - round black plates - bottom getter (cat:au2a)
1 12SL7GT / VT-289 $30.00 Sylvania 120% / 120% 1400: 1400 / 1250Gm NOS (OB) JAN - round black plates - bottom getter (cat:au2a)
1 12SL7GT / VT-289 $30.00 Sylvania 110% / 115% 1250: 1300 / 1250Gm NOS (OB) JAN - round black plates - bottom getter (cat:au2a)
1 12SL7GT / VT-289 $30.00 RCA 120% / 120% 1500: 1550 / 1250Gm NOS (OB) JAN - round black plates - bottom getter (cat:au2a)
1 12SL7GT / VT-289 $30.00 RCA 110% / 110% 1400: 1400 / 1250Gm NOS (wb) JAN - round black plates - bottom getter (cat:au2a)
1 12SL7GT / VT-289 $30.00 National Union 145% / 140% 2000: 1800 / 1250Gm NOS (OB) JAN - round gray plates - bottom getter (cat:au2a)
1 12SL7GT $15.00 Sylvania untested sealed in box NOS (OB) US Navy (cat:au2a)
1 12SL7GT $12.00 National Union 120% / 110% 1600: 1500 / 1250Gm NOS (OB) bottom getter - round black plates (cat:au2a)
1 12SL7GT $12.00 National Union 140% / 150% 1700: 2200 / 1250Gm NOS (OB) bottom getter - round black plates (cat:au2a)
1 12SL7GT $12.00 National Union 110% / 125% 1450: 1600 / 1250Gm NOS (OB) bottom getter - round black plates (cat:au2a)
1 12SL7GT $12.00 RCA 110% / 110% 1250: 1250 / 1250Gm NOS (OB) bottom getter - round black plates - red lettering (cat:au2a)
1 12SL7GT $12.00 RCA 110% / 110% 1250: 1250 / 1250Gm NOS (OB) bottom getter - round black plates - red lettering (cat:au2a)
1 12SL7GT $12.00 RCA 130% / 140% 1500: 1550 / 1250Gm NOS (OB) bottom getter - round black plates - white lettering - damaged box (cat:au2a)
1 12SL7GT $12.00 RCA 110% / 115% 1250: 1300 / 1250Gm NOS (OB) bottom getter - round gray plates - white lettering - made in England - damaged box (cat:au2a)
1 12SL7GT $12.00 RCA 125% / 120% 1400: 1400 / 1250Gm NOS (OB) side getter - round silver plates - red lettering (cat:au2a)
1 12SL7GT $12.00 RCA 120% / 120% 1450: 1500 / 1250Gm NOS (OB) bottom getter - round black plates - silver lettering (cat:au2a)
1 12SL7GT $12.00 RCA 130% / 140% 1500: 1700 / 1250Gm NOS (OB) sealed in box (cat:au2a)
1 12SL7GT $12.00 Raytheon 120% / 120% 1400: 1400 / 1250Gm NOS (OB) bottom getter - round gray plates (au2a)
1 12SL7GT $12.00 Raytheon 110% / 110% 1300: 1300 / 1250Gm NOS (OB) top getter - round black plates (au2a)
1 12SL7GT $12.00 Chancelor 130% / 130% 1450: 1450 / 1250Gm NOS (OB) bottom getter - round gray plates - black coat (au2a)
1 12SL7GT $12.00 Chancelor 120% / 130% 1500: 1500 / 1250Gm NOS (OB) bottom getter - round gray plates - black coat (au2a)
1 12SL7GT $12.00 Chancelor 120% / 120% 1450: 1450 / 1250Gm NOS (OB) bottom getter - round gray plates - black coat (au2a)
1 12SL7GT $12.00 Sylvania 110% / 110% 1250: 1250 / 1250Gm NOS (OB) top getter - round black plates - yellow lettering (cat:au2a)
1 12SL7GT $12.00 Sylvania 120% / 120% 1400: 1450 / 1250Gm NOS (OB) top getter - round black plates - yellow lettering (cat:au2a)
1 12SL7GT $12.00 Sylvania 115% / 115% 1400: 1400 / 1250Gm NOS (OB) bottom getter - round black plates - green lettering (cat:au2a)
1 12SL7GT $12.00 Sylvania 110% / 110% 1500: 1500 / 1250Gm NOS (OB) bottom getter - round black plates - green lettering (cat:au2a)
1 12SL7GT $12.00 Sylvania 110% / 110% 1300: 1450 / 1250Gm NOS (OB) bottom getter - round black plates - green lettering (cat:au2a)
1 12SL7GT $12.00 Sylvania 110% / 110% 1450: 1400 / 1250Gm NOS (OB) bottom getter - round gray plates - green lettering (cat:au2a)
1 12SL7GT $12.00 GE 130% / 130% 1700: 1750 / 1250Gm NOS (OB) side getter - round silver plates - white lettering (au2a)
1 12SL7GT $12.00 GE 110% / 110% 1400: 1400 / 1250Gm NOS (OB) side getter - round silver plates - white lettering (au2a)
1 12SL7GT $5.00 RCA 110% / 120% 1300: 1450 / 1250Gm used (ob) gray coat - white lettering (cat:au2a)
1 12SL7GT $5.00 RCA 110% / 110% 1300: 1350 / 1250Gm used (rb) gray coat - white lettering (cat:au2a)
1 12SL7GT $4.00 RCA 100% / 100% 1100: 1100 / 1250Gm used (rb) gray coat - white lettering (cat:au2a)
1 12SL7GT $4.00 Sylvania 90% / 85% 1150: 1000 / 1250Gm used (ob) bottom getter - round gray plates
1 12SL7GT $4.00 Sylvania 95% / 90% 1100: 1100 / 1250Gm used (ob) chrome top - top getter - round gray plates
1 12SL7GT / VT-289 $4.00 Sylvania 90% / 95% 1150: 1150 / 1250Gm used (rb) JAN - bottom getter - round black plates
1 12SL7GT $3.00 RCA 100% / 110% 1300: 1350 / 1250Gm used (L) bottom getter - round black plates - cat:403-3275 - loose base
1 12SL7GT $4.00 RCA 100% / 95% 1250: 1200 / 1250Gm used (L) bottom getter - round black plates - black coat
1 12SL7GT $4.00 RCA 90% / 110% 1250: 1650 / 1250Gm used (L) bottom getter - round black plates - cat:403-328-3
1 12SL7GT $5.00 RCA 100% / 105% 1250: 1350 / 1250Gm used (L) bottom getter - round black plates - cat:403-327-4
1 12SL7GT $6.00 RCA 110% / 120% 1650: 1750 / 1250Gm used (L) bottom getter - round black plates - cat:403-328-4
1 12SL7GT / VT-289 $6.00 RCA 125% / 115% 1500: 1400 / 1250Gm used (rb) JAN - bottom getter - round black plates
1 12SL7GT / VT-289 $5.00 Ken-Rad 130% / 120% 1450: 1250 / 1250Gm used (L) JAN - bottom getter - round black plates
1 12SL7GT $6.00 Sylvania 110% / 100% 1300: 1250 / 1250Gm used (L) top getter - round gray plates
1 12SL7GT $6.00 Raytheon 110% / 100% 1250: 1250 / 1250Gm used (rb) bottom getter - black coat
1 12SL7GT $6.00 Raytheon 120% / 120% 1600: 1600 / 1250Gm used (rb) bottom getter - black coat
1 12SL7GT $6.00 RCA 110% / 110% 1500: 1450 / 1250Gm used (rb) bottom getter - round gray plates - silver lettering
1 12SL7GT $6.00 RCA 120% / 100% 1450: 1200 / 1250Gm used (rb) bottom getter - round black plates
1 12SL7GT $6.00 GE 105% / 105% 1300: 1300 / 1250Gm used (rb) top getter - round black plates
1 12SL7GT $4.00 Sylvania 90% / 110% 1250: 1350 / 1250Gm used (rb) bottom getter - round black plates - green lettering
1 12SL7GT $6.00 Sylvania 100% / 110% 1200: 1300 / 1250Gm used (rb) bottom getter - round black plates - silver lettering
1 12SL7GT $6.00 Sylvania 100% / 100% 1250: 1250 / 1250Gm used (rb) bottom getter - round black plates - white lettering
1 12SL7GT $6.00 Sylvania 105% / 105% 1300: 1300 / 1250Gm used (rb) top getter - round gray plates - green lettering

Notes:
(OB) = original box, (rb) = relabeled/replacement box, (wb) = white box, (L) = loose (no box), (pl) = paper label on tube (original or third party)
(H) = tested on Hickok 539A
(ST)=ST Style, (GT)=GT Style, (TT)=Tall Tubular, (M7)=7pin miniature, M9=9pin miniature, (SM)=subminiature, JAN = Military
Emission Strength = Percentage of emission measured on Eico 666 tube tester
(Emission Strength = 100% baseline reference, >80%:good, >60%:fair >40%=diode good).
Gm = Mutual conductance measured on Hickok 533 tube tester; Except (H)=tested on Hickok 539A
(Gm = measured/baseline, measured1:measured2/baseline, measured1:measured2/baseline1:baseline2).


How To Order:

Purchasing our audio tubes is easy.
Just send us an email indicating the tubes (including quantities) you want.
We will let you know the total price including shipping and handling.

Shipping and Handling Information

Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com

Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.


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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com