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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 6EY6 $5.00 RCA 110% 4400: 4400 / 2000Gm NOS (OB) ---
1 6EY6 $5.00 GE 110% 5000: 4400 / 2000Gm NOS (OB) ---
1 6EY6 $5.00 GE 110% 4600: 4400 / 2000Gm NOS (OB) ---
1 6EY6 $5.00 Motorola 110% 4800: 4400 / 2000Gm NOS (OB) ---
1 6EY6 $5.00 Tung-Sol 110% 4800: 4400 / 2000Gm NOS (OB) ---
1 6EY6 $2.50 RCA 120% 4800: 4400 / 2000Gm used (wb) ---
1 6EY6 $2.50 RCA 110% 5000: 4400 / 2000Gm used (rb) ---
1 6EZ5 $5.00 Raytheon 110% 5000: 4100Gm NOS (OB) grid clip
1 6EZ5 $5.00 GE 120% 5000: 4100Gm NOS (OB) white lettering - grid clip
1 6EZ5 $5.00 GE 110% 5000: 4100Gm NOS (OB) white lettering - grid clip
1 6EZ5 $5.00 GE 115% 5500: 4100Gm NOS (OB) white lettering - grid clip
1 6EZ5 $5.00 Sylvania 110% 5250: 4100Gm NOS (OB) yellow lettering - grid clip
1 6EZ5 $5.00 Zenith 110% 5500: 4100Gm NOS (OB) grid clip
1 6EZ5 $5.00 Zenith 110% 5500: 4100Gm NOS (OB) grid clip
1 6EZ5 $5.00 International Servicemaster 120% 5500: 4100Gm NOS (OB) grid clip
1 6EZ5 $2.00 Zenith 100% 3000: 4100Gm used (rb) ---
1 6EZ5 $2.00 RCA 110% 4400: 4100Gm used (OB) red lettering - grid clip
1 6EZ5 $2.00 GE 100% 4600: 4100Gm used (rb) white lettering - grid clip
1 6EZ5 $2.00 Sylvania 120% 4600: 4100Gm used (L) yellow lettering - grid clip
1 6FE5 $5.00 RCA 110% 10000: 9500 / 2000 NOS (OB) ---
1 6FE5 $2.50 RCA 100% 8000: 9500 / 2000 used (OB) ---
1 12AH7-GT / VT-207 $4.00 Ken-Rad 130% / 110% 2650: 2400 / 2000 NOS (OB) JAN - sealed in box
1 12AH7-GT / VT-207 $4.00 Ken-Rad 110% / 110% 2150: 2250 / 2000 NOS (OB) JAN - sealed in box
1 12AH7-GT / VT-207 $4.00 Ken-Rad 110% / 110% 2300: 2400 / 2000 NOS (OB) JAN
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2100: 2100 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2250: 2250 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 115% 2200: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2250 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2150 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 100% / 110% 2200: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 120% / 120% 2400: 2500 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 120% / 110% 2300: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2300 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2200: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 CBS / Hytron 110% / 110% 2150: 2150 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 Hytron 110% / 110% 2050: 2100 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 GE 120% / 120% 2350: 2400 / 2000 NOS (OB) sealed in box
1 12AH7-GT $4.00 GE 120% / 110% 2300: 2200 / 2000 NOS (OB) sealed in box
1 12AH7-GT $4.00 Cunningham 120% / 120% 2500: 2600 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 Ken-Rad 130% / 130% 2600: 2700 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 Ken-Rad 120% / 110% 2350: 2150 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 115% 2250: 2450 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 110% 2000: 2000 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 100% / 100% 2000: 2000 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 100% / 100% 2050: 2050 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 110% 2150: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 120% 2100: 2200 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 110% 2100: 2050 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 100% / 110% 1950: 2100 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 110% / 110% 2100: 2100 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 100% / 100% 2050: 2050 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 100% / 100% 2100: 2100 / 2000 NOS (OB) ---
1 12AH7-GT $4.00 RCA 120% / 120% 2500: 2500 / 2000 NOS (wb) (cat:403-330-3)
1 12AH7-GT $4.00 RCA 110% / 110% 2100: 2100 / 2000 NOS (OB) missing box flap
1 12AH7-GT $4.00 Sylvania 140% / 130% 2500: 2250 / 2000 NOS (wb) green lettering
1 12AH7-GT $4.00 Sylvania 110% / 120% 2100: 2200 / 2000 NOS (OB) green lettering
1 12AH7-GT / VT-207 $2.00 RCA 105% / 110% 2150: 2300 / 2000 used (rb) JAN
1 12AH7-GT / VT-207 $2.00 RCA 100% / 100% 2000: 2000 / 2000 used (rb) JAN
1 12AH7-GT / VT-207 $2.00 RCA 110% / 110% 2200: 2200 / 2000 used (rb) US Army
1 12AH7-GT $2.00 RCA 110% / 100% 2100: 2000 / 2000 used (OB) ---
1 12AH7-GT $2.00 RCA 110% / 100% 2100: 2000 / 2000 used (OB) ---
1 12AH7-GT $2.00 RCA 100% / 100% 2000: 2100 / 2000 used (rb) ---
1 12AH7-GT $2.00 Ken-Rad 120% / 120% 2200: 2300 / 2000 used (rb) ---
1 12AH7-GT $2.00 Ken-Rad 130% / 120% 2600: 2700 / 2000 used (wb) ---
1 12AH7-GT $2.00 Ken-Rad 110% / 115% 2250: 2300 / 2000 used (rb) ---
1 12AH7-GT / VT-207 $2.00 RCA 110% / 110% 2150: 2150 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 120% / 115% 2200: 2100 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 100% / 120% 2000: 2150 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 120% / 110% 2300: 2200 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 100% / 100% 2000: 2000 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 110% / 100% 2050: 1900 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 RCA 100% / 105% 2000: 2050 / 2000 used (L) JAN
1 12AH7-GT $2.00 RCA 120% / 120% 2350: 2400 / 2000Gm used (L) bottom getter - round black plates - cat:403-330-1
1 12AH7-GT $2.00 RCA 110% / 110% 2000: 2000 / 2000Gm used (L) bottom getter - round black plates - cat:403-342-4
1 12AH7-GT $2.00 Ken-Rad 110% / 110% 2100: 2000 / 2000Gm used (L) bottom getter - round black plates - cat: 403-329-1
1 12AH7-GT $2.00 RCA 100% / 100% 2000: 2000 / 2000Gm used (L) bottom getter - round black plates - cat:403-342-1
1 12AH7-GT / VT-207 $2.00 Ken-Rad 110% / 120% 2150: 2350 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 Ken-Rad 120% / 130% 2300: 2450 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $2.00 Ken-Rad 100% / 100% 1900: 2200 / 2000 used (L) US Army
1 12AH7-GT $2.00 RCA 110% / 100% 2050: 1950 / 2000 used (L) JAN
1 12AH7-GT $2.00 RCA 100% / 100% 1950: 2000 / 2000 used (L) JAN
1 12AH7-GT $2.00 Ken-Rad 120% / 120% 2400: 2400 / 2000 used (L) ---
1 12AH7-GT $2.00 Sylvania 130% / 120% 4200: 2300 / 2000 used (L) ---
1 12AH7-GT $2.00 GE 130% / 130% 2550: 2550 / 2000 used (L) ---
1 12AH7-GT $2.00 RCA 110% / 110% 2100: 2150 / 2000 used (L) ---
1 12AH7-GT $2.00 RCA 100% / 110% 2000: 2000 / 2000 used (L) ---
1 12AH7-GT / VT-207 $1.00 RCA 105% / 90% 2000: 1750 / 2000 used (L) JAN
1 12AH7-GT / VT-207 $1.00 RCA 90% / 100% 2050: 2000 / 2000 used (rb) JAN
1 12AH7-GT / VT-207 $1.00 Ken-Rad 90% / 100% 2100: 2250 / 2000 used (L) JAN
1 12AH7-GT $2.00 RCA 90% / 100% 1850: 2050 / 2000Gm used (L) bottom getter - round black plates
1 12AH7-GT $1.00 unknown 90% / 90% 1900: 1950 / 2000 used (L) ---
1 1644 / 12L8-GT $5.00 RCA 140% / 110% 3000: 2500 / 1700 NOS (OB) part#803697
1 1644 / 12L8-GT $5.00 RCA 130% / 120% 3000: 2000 / 1700 NOS (OB) part#803697
1 1644 / 12L8-GT $5.00 RCA 140% / 120% 3000: 2000 / 1700 NOS (OB) part#803697
1 1644 / 12L8-GT $5.00 RCA 120% / 140% 2250: 2700 / 1700 NOS (OB) part#803697
1 1635 $10.00 RCA 120% / 120% 900: 900 / 800Gm used (OB) gray coat - JAN
1 1635 $5.00 RCA 120% / 125% 900: 950 / 800Gm used (wb) gray coat
1 1635 $5.00 RCA 120% / 120% 950: 950 / 800Gm used (wb) JAN
1 1635 $5.00 RCA 120% / 120% 800: 800 / 800Gm used (wb) gray coat

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