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
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|
1 | 6AU5-GT | $6.00 | Amperex | 120% | 7500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $6.00 | Tung-Sol | 110% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $6.00 | Tung-Sol | 110% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | RCA | 130% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 7500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 7500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 8000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 8000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 8500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 130% | 8500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 100% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 6500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 6500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 8500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 7250 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7000 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7000 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 7500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 6500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 8000 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 110% | 5500 / 5200 | NOS (OB) | silver lettering |
1 | 6AU5-GT | $5.00 | RCA | 120% | 6750 / 5200 | NOS (OB) | silver lettering - damaged box |
1 | 6AU5-GT | $5.00 | GE | 130% | 7500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 6000 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 6500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 6500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 7500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | GE | 110% | 6500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 6500 / 5200 | NOS (OB) | red lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 7000 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 110% | 6500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 7500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 7000 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 7500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 120% | 6500 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 7000 / 5200 | NOS (OB) | white lettering |
1 | 6AU5-GT | $5.00 | GE | 130% | 7000 / 5200 | NOS (wb) | white lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 6500 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 6000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7250 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 130% | 7500 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 7000 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 6500 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 120% | 6500 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 110% | 6500 / 5200 | NOS (OB) | yellow lettering |
1 | 6AU5-GT | $5.00 | Sylvania | 110% | 6500 / 5200 | NOS (OB) | green lettering |
1 | 6AU5-GT | $5.00 | Philco | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Delco | 130% | 6000 / 5200 | NOS (OB) | water damaged box |
1 | 6AU5-GT | $5.00 | Selectron | 120% | 6000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Dumont | 120% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Dumont | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Westinghouse | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Westinghouse | 120% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Westinghouse | 120% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Westinghouse | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 120% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 130% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 130% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 110% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | Raytheon | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | CBS | 120% | 7000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | CBS | 120% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | CBS | 130% | 6500 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | CBS | 110% | 6000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $5.00 | CBS | 140% | 6000 / 5200 | NOS (OB) | --- |
1 | 6AU5-GT | $2.00 | RCA | 110% | 7250 / 5200 | used (OB) | silver lettering |
1 | 6AU5-GT | $2.00 | RCA | 130% | 7500 / 5200 | used (rb) | red lettering |
1 | 6AU5-GT | $2.00 | RCA | 120% | 6500 / 5200 | used (rb) | red lettering |
1 | 6AU5-GT | $2.00 | RCA | 125% | 7000 / 5200 | used (rb) | red lettering |
1 | 6AU5-GT | $2.00 | RCA | 110% | 7000 / 5200 | used (rb) | red lettering |
1 | 6AU5-GT | $2.00 | RCA | 110% | 6250 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $2.00 | RCA | 120% | 7000 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $2.00 | RCA | 120% | 6500 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $2.00 | RCA | 115% | 6000 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $2.00 | RCA | 115% | 6500 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $2.00 | Raytheon | 120% | 6500 / 5200 | used (OB) | --- |
1 | 6AU5-GT | $2.00 | Hewlett Packard | 120% | 6500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Cornell | 110% | 6500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Cornell | 120% | 6500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Cornell | 115% | 6500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Silvertone | 110% | 6000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Westinghouse | 110% | 6500 / 5200 | used (wb) | --- |
1 | 6AU5-GT | $2.00 | Tung-Sol | 110% | 6500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $2.00 | Sylvania | 120% | 6000 / 5200 | used (rb) | yellow lettering |
1 | 6AU5-GT | $2.00 | Silvertone | 120% | 7500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $1.50 | Hoffman | 100% | 7500 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $1.50 | Packard Bell | 100% | 7000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $1.50 | Packard Bell | 105% | 6000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $1.50 | Silvertone | 100% | 6000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $1.50 | RCA | 100% | 6050 / 5200 | used (OB) | silver lettering |
1 | 6AU5-GT | $1.50 | GE | 100% | 6000 / 5200 | used (OB) | white lettering |
1 | 6AU5-GT | $1.00 | Philco | 140% | 5000 / 5200 | used (OB) | --- |
1 | 6AU5-GT | $1.00 | RCA | 110% | 5500 / 5200 | used (OB) | silver lettering |
1 | 6AU5-GT | $1.00 | Raytheon | 100% | 5500 / 5200 | used (OB) | --- |
1 | 6AU5-GT | $1.00 | Tung-Sol | 100% | 5200 / 5200 | used (ob) | --- |
1 | 6AU5-GT | $1.00 | Sylvania | 120% | 5500 / 5200 | used (ob) | yellow lettering |
1 | 6AU5-GT | $1.00 | Sylvania | 100% | 5200 / 5200 | used (ob) | yellow lettering |
1 | 6AU5-GT | $1.00 | Sylvania | 100% | 5200 / 5200 | used (ob) | yellow lettering |
1 | 6AU5-GT | $1.00 | CBS | 130% | 7500 / 5200 | used (L) | --- |
1 | 6AU5-GT | $1.00 | RCA | 100% | 5500 / 5200 | used (L) | silver lettering |
1 | 6AU5-GT | $1.00 | RCA | 110% | 6000 / 5200 | used (L) | silver lettering |
1 | 6AU5-GT | $1.00 | RCA | 110% | 6000 / 5200 | used (L | silver lettering |
1 | 6AU5-GT | $1.00 | RCA | 100% | 6000 / 5200 | used (L) | silver lettering |
1 | 6AU5-GT | $1.00 | GE | 110% | 6000 / 5200 | used (L) | red lettering |
1 | 6AU5-GT | $1.00 | Sylvania | 100% | 6250 / 5200 | used (L) | yellow lettering |
1 | 6AU5-GT | $1.00 | Raytheon 100% | 6000 / 5200 | used (L) | --- | |
1 | 6AU5-GT | $0.50 | RCA | 90% | 5500 / 5200 | used (rb) | silver lettering |
1 | 6AU5-GT | $0.50 | Pacific Mercury | 90% | 7000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $0.50 | Cornell | 90% | 5000 / 5200 | used (rb) | --- |
1 | 6AU5-GT | $0.50 | Sylvania | 130% | 6000 / 5200 | used leaky (1M) (ob) | yellow 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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and
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