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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 6DQ5 $10.00 Amperex 130% 7500 / 6500Gm NOS (OB) world logo - dual side halo getter - grid clip - gray plate
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - gray plate (cat:402-272-5
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 130% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 110% 7000 / 6500Gm NOS (OB) red lettering - top halo getter - gray plate
1 6DQ5 $10.00 RCA 120% 8000 / 6500Gm NOS (OB) red lettering - top halo getter - gray plate
1 6DQ5 $10.00 RCA 120% 7000 / 6500Gm NOS (OB) red lettering - top halo getter - gray plate
1 6DQ5 $10.00 RCA 130% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - screen grid fin - gray plate
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 125% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate
1 6DQ5 $10.00 RCA 130% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate
1 6DQ5 $10.00 RCA 120% 7000 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 130% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate (cat:402-272-4)
1 6DQ5 $10.00 RCA 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate - screen grid fins
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) dual side halo getter - gray plate - grid clip - screen grid fin
1 6DQ5 $10.00 RCA 110% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate
1 6DQ5 $10.00 RCA 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - gray plate - screen grid fins
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate
1 6DQ5 $10.00 RCA 120% 7500 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate - water damaded box (cat:403-53)
1 6DQ5 $10.00 RCA 120% 7000 / 6500Gm NOS (OB) red lettering - dual side halo getter - black plate (cat:402-272-3)
1 6DQ5 $10.00 RCA 110% 7000 / 6500Gm NOS (OB) red lettering - side halo getter - gray plate
1 6DQ5 $10.00 GE 120% 7500 / 6500Gm NOS (OB) white lettering - dual side 'D' getter - grid clip - gray plate
1 6DQ5 $10.00 GE 120% 7500 / 6500Gm NOS (OB) white lettering - dual side 'D' getter - grid clip - gray plate
1 6DQ5 $10.00 GE 120% 7500 / 6500Gm NOS (OB) white lettering - dual side 'D' getter - grid clip - gray plate
1 6DQ5 $10.00 GE 130% 7500 / 6500Gm NOS (OB) white lettering - dual top 'D' getter - screen grid fins - gray plate - top mica getter shield
1 6DQ5 $10.00 GE 120% 7000 / 6500Gm NOS (OB) white lettering - dual side 'D' getter - grid clip - gray plate
1 6DQ5 $10.00 GE 125% 7500 / 6500Gm NOS (OB) white lettering - dual side halo getter - grid clip - gray plate - water damaged box
1 6DQ5 $10.00 Westinghouse 120% 7000 / 6500Gm NOS (OB) dual side getter - grid clip - gray plate
1 6DQ5 $10.00 Packard Bell 120% 7500 / 6500Gm NOS (OB) side halo getter - screen grid fins - gray plate
1 6DQ5 $10.00 Zenith 120% 7500 / 6500Gm NOS (OB) dual side 'D' getter - grid clip - gray plate
1 6DQ5 $10.00 Zenith 130% 7500 / 6500Gm NOS (OB) dual side halo getter - grid clip - gray plate - damaged box
1 6DQ5 $10.00 Zenith 110% 7500 / 6500Gm NOS (OB) dual side 'D' getter - grid clip - gray plate - damaged box
1 6DQ5 $10.00 Raytheon 130% 7500 / 6500Gm NOS (OB) dual side halo getter - grid clip - gray plate
1 6DQ5 $10.00 Philco 120% 7500 / 6500Gm NOS (OB) dual side halo getter - screen grid fins - gray plate - torn box flap
1 6DQ5 $10.00 Philco 120% 7000 / 6500Gm NOS (OB) dual side halo getter - grid clip - screen grid fins - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 110% 7500 / 6500Gm NOS (OB) red lettering - dual side halo getter - grid clip - screen grid fin - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) yellow lettering - top halo getter - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) yellow lettering - top halo getter - gray plate
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) yellow lettering - dual side halo getter - grid clip - screen grid fin - gray plate (cat:403-186)
1 6DQ5 $10.00 Sylvania 120% 7500 / 6500Gm NOS (OB) yellow lettering - top halo getter - gray plate
1 6DQ5 $5.00 Silvertone 120% 7500 / 6500Gm used (rb) side halo getter - gray plate - screen grid fins
1 6DQ5 $5.00 Raytheon 120% 7500 / 6500Gm used (rb) dual side halo getters - grid clip - gray plate
1 6DQ5 $5.00 RCA 130% 7500 / 6500Gm used (rb) side halo getter - screen grid fins - gray plate
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.50 Amperex 110% --- NOS (OB) world logo
1 6GB7 $7.00 Amperex 110% --- NOS (OB) world logo - water dmaaged box
1 6LW6 $30.00 Zenith 110% 6500 / 6000Gm NOS (OB) top halo + dual side halo getter - grid clip - missing box flap
1 6LW6 $30.00 GE 130% 6500 / 6000Gm NOS (OB) white lettering - dual top halo getter - grid clip
1 26LW6 $15.00 GE 110% 6500 / 6000Gm NOS (OB) white lettering - dual top halo getters - grid clip
1 26LW6 $15.00 GE 120% 6500 / 6000Gm NOS (OB) white lettering - dual top halo getters - grid clip
1 26LW6 $15.00 GE 110% 6500 / 6000Gm NOS (OB) white lettering - dual top halo getters - grid clip
1 26LW6 $15.00 RCA 120% 6500 / 6000Gm NOS (OB) red lettering - top halo + dual side halo getters
1 26LW6 $15.00 Westinghouse 110% 6500 / 6000Gm NOS (OB) top halo+ dual side halo getters
1 26LW6 $6.00 GE 100% 6500 / 6000Gm used (rb) Side halo + dual top halo getters
1 26LW6 $6.00 Sylvania 100% 6500 / 6000Gm used (L) yellow lettering - side halo + dual top halo getters - grid clip
1 36LW6 $10.00 Wards Airline 120% 7000 / 6000Gm NOS (OB) dual top halo getters
1 36LW6 $5.00 GE 100% 6000 / 6000Gm used (L) white lettering - dual top halo getters
1 36LW6 $5.00 unknown 110% 6500 / 6000Gm used (L) dual side halo getters - screen grid fins
1 36LW6 $5.00 Lindal 100% 6000 / 6000Gm used (L) dual top halo getters

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
Bargain Bin
for more savings!



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