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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 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) yellow lettering - damaged box
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) red lettering
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) red lettering - canada
1 6W4-GT $2.00 Sylvania 110% --- NOS (OB) green lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) green lettering
1 6W4-GT $2.00 Sylvania 115% --- NOS (OB) green lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 6W4-GT $2.00 GE 110% --- NOS (OB) white lettering - canada
1 6W4-GT $2.00 GE 110% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 130% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 115% --- NOS (OB) silver lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 120% --- NOS (OB) red lettering
1 6W4-GT $2.00 RCA 115% --- NOS (OB) red lettering
1 6W4-GT $2.00 CBS 115% --- NOS (OB) ---
1 6W4-GT $2.00 CBS 115% --- NOS (OB) ---
1 6W4-GT $2.00 Philco 115% --- NOS (OB) ---
1 6W4-GT $2.00 Raytheon 115% --- NOS (OB) ---
1 6W4-GT $2.00 Raytheon 110% --- NOS (OB) ---
1 6W4-GT $2.00 Raytheon 110% --- NOS (OB) damaged box
1 6W4-GT $2.00 Raytheon 110% --- NOS (OB) ---
1 6W4-GT $2.00 Raytheon 115% --- NOS (OB) ---
1 6W4-GT $2.00 Tung-Sol 120% --- NOS (OB) ---
1 6W4-GT $2.00 Tung-Sol 120% --- NOS (OB) ---
1 6W4-GT $2.00 Channel Master 120% --- NOS (OB) ---
1 6W4-GT $2.00 Channel Master 120% --- NOS (OB) ---
1 6W4-GT $2.00 Channel Master 120% --- NOS (OB) ---
1 6W4-GT $2.00 Westinghouse 120% --- NOS (OB) ---
1 6W4-GT $2.00 ITT 115% --- NOS (OB) ---
1 6W4-GT $2.00 Rad-Tel 120% --- NOS (OB) damaged box
1 6W4-GT $2.00 Selectron 120% --- NOS (OB) ---
1 6W4-GT $2.00 Arcturus 120% --- NOS (OB) ---
1 6W4-GT $2.00 Arcturus 120% --- NOS (OB) ---
1 6W4-GT $2.00 Hitachi 115% --- NOS (OB) ---
1 6W4-GT $1.00 RCA Victor 110% --- used (rb) ---
1 6W4-GT $1.00 RCA Victor 110% --- used (rb) ---
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering - bronw
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 115% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 115% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 120% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 120% --- used (rb) silver lettering
1 6W4-GT $1.00 RCA 110% --- used (rb) red lettering
1 6W4-GT $1.00 GE 110% --- used (rb) white lettering
1 6W4-GT $1.00 GE 110% --- used (rb) white lettering
1 6W4-GT $1.00 GE 115% --- used (rb) white lettering
1 6W4-GT $1.00 Sylvania 110% --- used (rb) red lettering
1 6W4-GT $1.00 Sylvania 110% --- used (rb) green lettering
1 6W4-GT $1.00 CBS / Columbia 110% --- used (rb) ---
1 6W4-GT $1.00 CBS / Hytron 110% --- used (rb) ---
1 6W4-GT $1.00 CBS / Hytron 115% --- used (rb) ---
1 6W4-GT $1.00 Bendix Radio 120% --- used (rb) ---
1 6W4-GT $1.00 Bendix Radio 115% --- used (rb) ---
1 6W4-GT $1.00 Tung-Sol 110% --- used (rb) ---
1 6W4-GT $1.00 Tung-Sol 115% --- used (rb) ---
1 6W4-GT $1.00 Hytron 110% --- used (rb) ---
1 6W4-GT $1.00 Ken-Rad 110% --- used (rb) ---
1 6W4-GT $1.00 Teletone 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Raytheon 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Raytheon 115% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Raytheon 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Tru-Vac 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Tru-Vac 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Hi-Lite 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Emerson 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Arvin 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Sonora 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Sky-Tron 110% --- used (rb) --- (au-72)
1 6W4-GT $1.00 Cornell 110% --- used (rb) --- (au-72)
1 6W4-GT $0.50 RCA 100% --- used (rb) silver lettering (au-72)
1 6W4-GT $0.50 Silvertone 100% --- used (rb) --- (au-72)
1 6W4-GT $0.50 unknown 100% --- used (rb) --- (au-72)
1 25W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 110% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 115% --- NOS (OB) white lettering
1 25W4-GT $2.00 GE 120% --- NOS (OB) white lettering - torn box flap
1 25W4-GT $2.00 GE 115% --- NOS (OB) red lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering
1 25W4-GT $2.00 RCA 115% --- NOS (OB) silver lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering - torn box flap
1 25W4-GT $2.00 RCA 115% --- NOS (OB) silver lettering - torn box flap
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering - damaged box
1 25W4-GT $2.00 RCA 110% --- NOS (OB) silver lettering - damaged box
1 25W4-GT $2.00 RCA 110% --- NOS (OB) red lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) red lettering
1 25W4-GT $2.00 RCA 110% --- NOS (OB) red lettering - missing box flap
1 25W4-GT $2.00 RCA 115% --- NOS (OB) red lettering
1 25W4-GT $2.00 RCA 115% --- NOS (OB) red lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 110% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Sylvania 120% --- NOS (OB) yellow lettering
1 25W4-GT $2.00 Philco 110% --- NOS (OB) ---
1 25W4-GT $2.00 Philco 110% --- NOS (OB) ---
1 25W4-GT $2.00 Philco 115% --- NOS (OB) ---
1 25W4-GT $2.00 Philco 120% --- NOS (OB) torn box flap
1 25W4-GT $2.00 CBS 110% --- NOS (OB) ---
1 25W4-GT $2.00 CBS 115% --- NOS (OB) ---
1 25W4-GT $2.00 Tung-Sol 115% --- NOS (OB) ---
1 25W4-GT $2.00 GM / Delco 115% --- NOS (OB) ---
1 25W4-GT $2.00 Selectron 115% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 110% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 110% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 110% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 115% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 115% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 115% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 120% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 120% --- NOS (OB) ---
1 25W4-GT $2.00 Raytheon 110% --- NOS (OB) missing box flap
1 25W4-GT $2.00 Westinghouse 110% --- NOS (OB) ---
1 25W4-GT $2.00 Westinghouse 110% --- NOS (OB) torn box flap
1 25W4-GT $2.00 National Union 120% --- NOS (OB) ---
1 25W4-GT $2.00 National Union 115% --- NOS (OB) worn box
1 25W4-GT $2.00 National Union 115% --- NOS (OB) damaged box
1 25W4-GT $1.00 GE 115% --- used (rb) white lettering
1 25W4-GT $1.00 GE 110% --- used (rb) white lettering
1 25W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 25W4-GT $1.00 RCA 110% --- used (rb) silver lettering
1 25W4-GT $1.00 Silvertone 110% --- used (rb) ---
1 25W4-GT $1.00 Teleking 115% --- used (rb) ---

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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Don't forget to visit our
Discount Bargain Packs
and
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for more savings!



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MDB Ventures Home

Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com