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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 5V4-G $25.00 RCA 110% / 110% --- NOS (OB) (ST)
1 5V4-G $20.00 National Union 110% / 110% --- NOS (wb) (ST)
1 5V4-G $20.00 Raytheon 110% / 110% --- NOS (wb) (ST)
1 5V4-G $20.00 Raytheon 110% / 110% --- NOS (wb) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (rb) (ST)
1 5V4-G $10.00 Raytheon 100% / 100% --- used (rb) (ST)
1 5V4-G $10.00 RCA 100% / 100% --- used (ob) (ST) damaged box
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 RCA 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 RCA 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 RCA 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 RCA 100% / 110% --- used (L) (ST)
1 5V4-G $10.00 RCA 105% / 110% --- used (L) (ST)
1 5V4-G $10.00 Sylvania 110% / 110% --- used (L) (ST) - bottom foil pan getter
1 5V4-G $10.00 Sylvania 110% / 110% --- used (L) (ST) - bottom foil pan getter
1 5V4-G $10.00 Sylvania 110% / 110% --- used (L) (ST) - bottom foil pan getter
1 5V4-G $10.00 Sylvania 105% / 105% --- used (L) (ST) JAN
1 5V4-G $10.00 Magnavox 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 Ken-Rad 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 Ken-Rad 100% / 105% --- used (L) (ST)
1 5V4-G $10.00 Raytheon 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 Westinghouse 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 Cunningham 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 National Union 105% / 110% --- used (L) (ST)
1 5V4-G $10.00 CBS / Hytron 105% / 105% --- used (L) (ST)
1 5V4-G $10.00 Philco 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 Philco 100% / 100% --- used (L) (ST)
1 5V4-G $10.00 Philco 100% / 100% --- used (L) (ST)
1 5V4-G $8.00 Magnavox 90% / 100% --- used (L) (ST)
1 5V4-G $8.00 Zenith 95% / 95% --- used (L) (ST)
1 5V4-G $5.00 Ken-Rad 80% / 90% --- used (L) (ST)
1 5V4-G $5.00 CBS / Hytron 110% / 110% --- used (L) (ST) loose glass inside tube
1 5V4-GA $10.00 Sylvania 110% / 110% --- used (rb) (ST)
1 5V4-GA $10.00 Westinghouse 110% / 110% --- used (L) (ST)
1 5V4-GA $10.00 Hallicrafters 110% / 100% --- used (L) (ST)
1 5V4-GA $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-GA $10.00 RCA 110% / 110% --- used (L) (ST)
1 5V4-GA $10.00 GE 110% / 110% --- used (L) (ST)
1 5V4-GA $10.00 unknown 110% / 110% --- used (L) (ST)

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