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Audio Tube Store


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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 6BY5-GA $3.50 RCA 120% / 120% --- NOS (OB) red lettering
1 6BY5-GA $3.50 RCA 120% / 120% --- NOS (OB) red lettering
1 6BY5-GA $3.50 RCA 120% / 120% --- NOS (OB) silverlettering
1 6BY5-GA $3.50 RCA 120% / 120% --- NOS (OB) silver lettering
1 6BY5-GA $3.50 GE 120% / 120% --- NOS (OB) white lettering - torn box flap
1 6BY5-GA $3.50 GE 120% / 120% --- NOS (OB) white lettering
1 6BY5-GA $3.50 GE 130% / 130% --- NOS (OB) white lettering
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering - damaged box
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering - damaged box
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 6BY5-GA $3.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 6BY5-GA $3.50 Sylvania 130% / 130% --- NOS (OB) yellow lettering
1 6BY5-GA $3.50 Sylvania 140% / 130% --- NOS (OB) yellow lettering - worn box
1 6BY5-GA $3.50 Raytheon 120% / 120% --- NOS (OB) ---
1 6BY5-GA $3.50 Raytheon 120% / 120% --- NOS (OB) worn box
1 6BY5-GA $3.50 Raytheon 130% / 140% --- NOS (OB) missing box flap
1 6BY5-GA $3.50 Tung-sol 130% / 130% --- NOS (OB) ---
1 6BY5-GA $3.50 Tung-sol 120% / 120% --- NOS (OB) ---
1 6BY5-GA $3.50 CBS 120% / 120% --- NOS (OB) damaged box
1 6BY5-GA $3.50 CBS 120% / 120% --- NOS (OB) torn box flap
1 6BY5-GA $3.50 Dumont 120% / 120% --- NOS (OB) ---
1 6BY5-GA $1.00 CBS 110% / 140% --- used (rb) ---
1 6BY5-GA $1.00 Westinghouse 115% / 120% --- used (rb) ---
1 6CU6 $2.50 CBS / Hytron 140% 7500 / 5500Gm NOS (OB) grid 'c' clip - dual bottom getters - large bottle
1 6CU6 $2.50 CBS / Hytron 130% 7000 / 5500 NOS (OB) grid 'c' clip - dual bottom getters - large bottle
1 6CU6 $2.50 CBS 110% 7000 / 5500Gm NOS (OB) dual side getters - large bottle
1 6CU6 $2.50 CBS 110% 6500 / 5500Gm NOS (OB) dual side getters - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 110% 6500 / 5500Gm NOS (OB) white lettering - grid 'c' clip - side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 110% 5500 / 5500Gm NOS (OB) white lettering - grid 'c' clip - side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 110% 6000 / 5500Gm NOS (OB) white lettering - side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 130% 5500 / 5500Gm NOS (OB) white lettering - grid 'c' clip - side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 110% 6250 / 5500Gm NOS (OB) red lettering - side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 130% 6000 / 5500Gm NOS (OB) white lettering - grid 'c' clip - dual side getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 110% 5500 / 5500Gm NOS (OB) white lettering - grid clip - top getter - large bottle
1 6CU6 / 6BQ6GA $2.50 GE 130% 6250 / 5500Gm NOS (OB) white lettering - grid 'c' clip - dual side getter - large bottle
1 6CU6 $2.50 Raytheon 110% 6500 / 5500Gm NOS (OB) grid 'c' clip - dual side getters - large bottle
1 6CU6 $2.50 Raytheon 110% 6500 / 5500Gm NOS (OB) grid 'c' clip - dual side getters - large bottle
1 6CU6 $2.50 Tung-Sol 110% 8000 / 5500Gm NOS (OB) grid 'c' clip - top + side getter - large bottle - torn box flap (cat:402-379)
1 6CU6 / 6BQ6GTB $2.00 Channel Master 130% 7250 / 5500Gm NOS (OB) grid 'c' clip - top getter - small bottle
1 6CU6 $2.50 Sylvania 120% 7000 / 5500Gm NOS (OB) yellow lettering - grid 'c' clip - dual side getters - large bottle
1 6CU6 $2.50 Sylvania 120% 7000 / 5500Gm NOS (OB) yellow lettering - grid 'c' clip - dual side getters - large bottle
1 6CU6 $2.50 Sylvania 120% 7500 / 5500Gm NOS (OB) green lettering - grid 'c' clip - side getter - large bottle
1 6CU6 $1.00 Tung-Sol 95% 6500 / 5500Gm used (rb) grid 'c' clip - dual side getters - large bottle
1 6CU6 $1.00 GE 90% 7500 / 5500Gm used (rb) white lettering - grid clip - top getter - large bottle
1 12CU6 $3.00 Raytheon 120% 7000 / 5500Gm NOS (OB) grid 'c' clip - dual bottom getters - large bottle
1 12CU6 $3.00 Raytheon 110% 6000 / 5500Gm NOS (OB) grid clip - side getter - large bottle
1 12CU6 $3.00 Westinghouse 130% 7250 / 5500Gm NOS (OB) side getter - large bottle
1 12CU6 $3.00 Sylvania 130% 7500 / 5500Gm NOS (OB) yellow lettering - grid 'c' clip - side getter - large bottle
1 12CU6 $3.00 Sylvania 130% 8000 / 5500Gm NOS (OB) yellow lettering - grid 'c' clip - side getter - large bottle
1 25CU6 $3.00 CBS 120% 7500 / 5500Gm NOS (OB) dual side getters - large bottle
1 25CU6 $3.00 CBS 115% 7500 / 5500Gm NOS (OB) dual side getters - large bottle
1 25CU6 $3.00 Raytheon 120% 7500 / 5500Gm NOS (OB) dual side getters - large bottle
1 12GC6 $4.00 Amperex 120% 7250 / 6600Gm NOS (OB) world logo - side getter - grid 'c' clip - missing box flap
1 12GC6 $4.00 Amperex 120% 7250 / 6600Gm NOS (OB) world logo - side getter - grid 'c' clip - torn box flap
1 12GC6 $4.00 Amperex 120% 7250 / 6600Gm NOS (OB) world logo - side getter - grid 'c' clip - damaged box
1 12GC6 $3.00 RCA 120% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 120% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 120% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 120% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 120% 8000 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 125% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 115% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 RCA 115% 7500 / 6600Gm NOS (OB) red lettering - side getter - grid 'c' clip
1 12GC6 $3.00 Sylvania 120% 7500 / 6600Gm NOS (OB) yellow lettering - side getter - grid 'c' clip
1 50JY6 $3.00 Panasonic 140% --- NOS (OB) japan
1 50JY6 $3.00 Panasonic 140% --- NOS (OB) japan
1 50JY6 $3.00 Philco 140% --- NOS (OB) japan - missing box flap
1 50JY6 $3.00 Philco 140% --- NOS (OB) japan - torn box flap
1 50JY6 $4.00 Sylvania 120% --- NOS (OB) japan

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