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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 6AX5-GT $7.50 Amperex 110% / 110% --- NOS (OB) copper plate - world logo - water damaged box
1 6AX5-GT $6.00 Tung-Sol 120% / 120% --- NOS (OB) worn box
1 6AX5-GT $6.00 Tung-Sol 120% / 120% --- NOS (OB) ---
1 6AX5-GT $6.00 Tung-Sol 130% / 120% --- NOS (OB) ---
1 6AX5-GT $7.50 Motorola 115% / 120% --- NOS (OB) copper plate
1 6AX5-GT $7.50 Motorola 115% / 120% --- NOS (OB) copper plate
1 6AX5-GT $7.50 Raytheon 110% / 115% --- NOS (OB) copper plate
1 6AX5-GT $6.00 Selectron 115% / 120% --- NOS (OB) copper plate
1 6AX5-GT $7.50 GE 115% / 115% --- NOS (OB) white lettering - copper plate
1 6AX5-GT $7.50 GE 115% / 115% --- NOS (OB) white lettering - copper plate
1 6AX5-GT $7.50 GE 110% / 110% --- NOS (wb) white lettering - copper plate
1 6AX5-GT $7.50 GE 110% / 110% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 GE 120% / 120% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering - copper plate
1 6AX5-GT $7.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering - copper plate
1 6AX5-GT $7.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering - copper plate
1 6AX5-GT $7.50 Sylvania 115% / 115% --- NOS (OB) yellow lettering - copper plate
1 6AX5-GT $7.50 RCA 120% / 120% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 RCA 120% / 110% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 RCA 120% / 115% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 RCA 110% / 115% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $7.50 RCA 120% / 115% --- NOS (OB) red lettering - copper plate
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 115% / 110% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 110% / 115% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 120% / 120% --- NOS (OB) red lettering
1 6AX5-GT $5.00 RCA 120% / 120% --- NOS (OB) red lettering - button base
1 6AX5-GT $5.00 RCA 110% / 110% --- NOS (OB) red lettering - button base
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) red lettering - button base
1 6AX5-GT $5.00 RCA 120% / 120% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 130% / 125% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 120% / 110% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 115% / 125% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 120% / 120% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 120% / 120% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 115% / 115% --- NOS (OB) silver lettering
1 6AX5-GT $5.00 RCA 110% / 110% --- NOS (OB) silver lettering - worn box
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 110% / 110% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 115% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 115% / 110% --- NOS (OB) white lettering
1 6AX5-GT $5.00 GE 120% / 120% --- NOS (OB) white lettering - damaged box
1 6AX5-GT $7.50 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $7.50 GE 120% / 115% --- NOS (OB) white lettering
1 6AX5-GT $7.50 GE 120% / 115% --- NOS (OB) white lettering
1 6AX5-GT $7.50 GE 120% / 120% --- NOS (OB) white lettering
1 6AX5-GT $7.50 GE 120% / 120% --- NOS (OB) white lettering - missing box flap
1 6AX5-GT $7.50 Sylvania 120% / 120% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 110% / 110% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 110% / 110% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 115% / 110% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 115% / 110% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 115% / 110% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 120% / 115% --- NOS (OB) yellow lettering
1 6AX5-GT $7.50 Sylvania 115% / 115% --- NOS (OB) yellow lettering
1 6AX5-GT $5.00 CBS 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 CBS 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 CBS 110% / 110% --- NOS (OB) ---
1 6AX5-GT $5.00 CBS / Hytron 110% / 110% --- NOS (OB) ---
1 6AX5-GT $5.00 Philco 115% / 115% --- NOS (OB) worn box
1 6AX5-GT $5.00 Philco 115% / 115% --- NOS (OB) worn box
1 6AX5-GT $5.00 Philco 110% / 110% --- NOS (OB) ---
1 6AX5-GT $5.00 Westinghouse 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Westinghouse 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Westinghouse 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Westinghouse 120% / 110% --- NOS (OB) ---
1 6AX5-GT $5.00 Raytheon 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Raytheon 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Raytheon 115% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Raytheon 120% / 115% --- NOS (OB) ---
1 6AX5-GT $5.00 Raytheon 120% / 115% --- NOS (OB) worn box
1 6AX5-GT $4.00 Tung-Sol 120% / 120% --- used (OB) ---
1 6AX5-GT $4.00 GE 110% / 110% --- used (OB) white lettering - copper plate
1 6AX5-GT $4.00 GE 120% / 120% --- used (OB) white lettering
1 6AX5-GT $3.00 Delta 100% / 110% --- used (rb) ---
1 6AX5-GT $3.00 Sheldon 110% / 130% --- used (rb) ---
1 6AX5-GT $2.00 Sylvania 120% / 120% --- used leaky (1M) (OB) green lettering
1 6AX5-GT $2.00 Sylvania 115% / 90% --- used (OB) yellow lettering
1 6AX5-GT $1.00 RCA 70% / 100% --- used (OB) silver 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