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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 6AH4-GT $5.00 Sylvania 100% 4000 / 4500Gm used (rb) top getter - grid clip - mica getter shield (tripple mica) - large rectangular plate - green lettering
1 6AH4-GT $5.00 CBS / Hytron 100% 4500 / 4500Gm used (rb) grid 'c' clip - top getter - large black rectangular plate - mica getter shield (tripple mica)
1 6AH4-GT $12.00 CBS / Hytron 110% 4600 / 4500Gm NOS (OB) grid clip - top getter - mica getter shield
1 6AH4-GT $12.00 Raytheon 110% 4800 / 4500 NOS (OB) grid clip - top getter - mica getter shield
1 6AH4-GT $12.00 Sylvania 110% 4600 / 4500Gm NOS (wb) side getter - grid clip - green lettering
1 6AH4-GT $12.00 Sylvania 110% 4500 / 4500Gm NOS (OB) side getter - grid clip - green lettering
1 6AH4-GT $12.00 Sylvania 110% 5000 / 4500Gm NOS (OB) top getter - grid clip - yellow lettering
1 6AH4-GT $12.00 Sylvania 120% 4700 / 4500Gm NOS (OB) top getter - yellow lettering
1 6AH4-GT $12.00 Sylvania 110% 4500 / 4500Gm NOS (OB) top getter - yellow lettering
1 6AH4-GT $12.00 Sylvania 110% 5000 / 4500Gm NOS (OB) top getter - grid clip - yellow lettering
1 6AH4-GT $12.00 Sylvania 110% 4800 / 4500Gm NOS (OB) top getter - grid clip - yellow lettering
1 6AH4-GT $12.00 RCA 110% 5000 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 115% 5500 / 4500Gm NOS (OB) red lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 4800 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 120% 5000 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 5000 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 4700 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 4500 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 5000 / 4500Gm NOS (wb) red lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 4800 / 4500Gm NOS (OB) red lettering - grid clip - top getter
1 6AH4-GT $12.00 RCA 110% 5200 / 4500Gm NOS (OB) red lettering - grid clip - top getter
1 6AH4-GT $12.00 RCA 110% 4500 / 4500Gm NOS (OB) red lettering - grid clip - top getter
1 6AH4-GT $12.00 RCA 120% 5200 / 4500Gm NOS (OB) red lettering - grid clip - top getter
1 6AH4-GT $12.00 RCA 120% 5000 / 4500Gm NOS (OB) red lettering - grid clip - top getter
1 6AH4-GT $12.00 RCA 120% 5000 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 5000 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 RCA 110% 4800 / 4500Gm NOS (OB) silver lettering - grid clip - side getter
1 6AH4-GT $12.00 Raytheon 110% 4600 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 Raytheon 110% 4800 / 4500Gm NOS (OB) top getter - grid clip
1 6AH4-GT $12.00 Raytheon 110% 4700 / 4500Gm NOS (OB) top getter - grid clip
1 6AH4-GT $12.00 Raytheon 120% 4900 / 4500Gm NOS (OB) top getter - grid clip
1 6AH4-GT $12.00 Raytheon 130% 5000 / 4500Gm NOS (OB) top getter - water damaged box
1 6AH4-GT $12.00 GE 110% 5200 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 110% 4700 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 130% 5400 / 4500Gm NOS (OB) red lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 110% 4500 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 110% 4800 / 4500Gm NOS (wb) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 120% 4800 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 120% 5000 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 130% 5700 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 120% 5000 / 4500Gm NOS (wb) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 115% 4800 / 4500Gm NOS (OB) white lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 130% 5800 / 4500Gm NOS (OB) white lettering - grid clip - side getter - torn box flap
1 6AH4-GT $12.00 GE 120% 5000 / 4500Gm NOS (OB) red lettering - grid clip - side getter
1 6AH4-GT $12.00 GE 120% 5400 / 4500Gm NOS (OB) red lettering - grid clip - side getter
1 6AH4-GT $12.00 CBS 110% 4800 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 CBS / Hytron 110% 4700 / 4500Gm NOS (ob) grid clip - side getter - box flp missing
1 6AH4-GT $12.00 Best Test 110% 4600 / 4500Gm NOS (OB) grid clip - top getter
1 6AH4-GT $12.00 Silvertone 130% 4600 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 Tung-Sol 130% 5400 / 4500Gm NOS (OB) grid clip - side getter
1 6AH4-GT $12.00 Motorola 110% 4500 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 Packard Bell 140% 5200 / 4500Gm NOS (OB) side getter - grid clip
1 6AH4-GT $12.00 Westinghouse 110% 5400 / 4500Gm NOS (OB) grid clip - top getter
1 6AH4-GT $12.00 Zenith 110% 5000 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 Selectron 120% 4500 / 4500Gm NOS (OB) top getter
1 6AH4-GT $12.00 Philco 110% 5000 / 4500Gm NOS (OB) grid clip - side getter
1 6AH4-GT $12.00 Philco 110% 4500 / 4500Gm NOS (OB) grid clip - side getter
1 6AH4-GT $5.00 Sylvania 110% 4800 / 4500Gm used (OB) yellow lettering - top getter - grid clip
1 6AH4-GT $5.00 Sylvania 110% 4600 / 4500Gm used (rb) green lettering - side getter - grid clip
1 6AH4-GT $5.00 RCA 120% 4800 / 4500Gm used (rb) red lettering - grid clip - side getter
1 6AH4-GT $5.00 GE 110% 4700 / 4500Gm used (rb) white lettering - grid clip - side getter
1 6AH4-GT $5.00 GE 110% 4200 / 4500Gm used (rb) white lettering - grid clip - side getter
1 6AH4-GT $5.00 GE 115% 4800 / 4500Gm used (wb) white lettering - grid clip - side getter
1 6AH4-GT $5.00 GE 110% 4700 / 4500Gm used (rb) white lettering - grid clip - side getter
1 6AH4-GT $5.00 Tung-Sol 105% 3800 / 4500Gm used (rb) side getter
1 6AH4-GT $5.00 Tung-Sol 105% 4100 / 4500Gm used (OB) grid clip - side getter
1 6AH4-GT $5.00 Westinghouse 110% 5000 / 4500Gm used (rb) grid clip - side getter
1 6AH4-GT $5.00 Arcturus 130% 4800 / 4500Gm used (rb) top getter
1 6AH4-GT $5.00 Zenith 120% 4700 / 4500Gm used (rb) grid clip - side getter
1 6AH4-GT $5.00 RCA 110% 4800 / 4500Gm used (L) grid clip - side getter - red lettering
1 6AH4-GT $5.00 GE 110% 4500 / 4500Gm used (ob) grid clip - side getter - white lettering
1 6AH4-GT $5.00 GE 110% 4200 / 4500Gm used (ob) grid clip - side getter - white lettering
1 6AH4-GT $5.00 GE 120% 5200 / 4500Gm used (rb) grid clip - side getter - white lettering
1 6AH4-GT $5.00 GE 110% 4500 / 4500Gm used (ob) grid clip - side getter - white lettering
1 6AH4-GT $5.00 Zenith 120% 4800 / 4500Gm used (L) grid clip - side getter
1 6AH4-GT $5.00 Westinghouse 130% 4500 / 4500Gm used (L) top getter
1 6AH4-GT $5.00 Delco 120% 5000 / 4500Gm used (L) grid clip - side getter
1 6AH4-GT $4.00 GE 105% 4300 / 4500Gm used (L) grid clip - side getter - white lettering
1 6AH4-GT $4.00 Selectron 100% 4200 / 4500Gm used (OB) top getter
1 6AH4-GT $4.00 Sylvania 100% 4200 / 4500Gm used (rb) green lettering - side getter - grid clip
1 6AH4-GT $4.00 Sylvania 100% 4000 / 4500Gm used (ob) yellow lettering - top getter
1 6AH4-GT $5.00 Sylvania 100% 4500 / 4500Gm used (ob) yellow lettering - top getter
1 6AH4-GT $4.00 RCA 100% 4000 / 4500Gm used (OB) red lettering - grid clip - top getter
1 6AH4-GT $4.00 Zenith 100% 3600 / 4500Gm used (L) grid clip - side getter
1 6AH4-GT $4.00 Tung-Sol 100% 4000 / 4500Gm used (L) grid clip - top getter
1 6AH4-GT $4.00 Tung-Sol 110% 4000 / 4500Gm used (rb) grid clip - top getter
1 6AH4-GT $4.00 Sylvania 100% 4400 / 4500Gm used (L) grid clip - top getter - yellow lettering
1 6AH4-GT $4.00 Raytheon 100% 4000 / 4500Gm used (rb) grid clip - top getter
1 6AH4-GT $2.00 CBS / Hytron 95% 4800 / 4500Gm used (rb) grid clip - side getter
1 6AH4-GT $2.00 Raytheon 90% 3800 / 4500Gm used (OB) grid clip - side getter
1 6AH4-GT $2.00 GE 90% 3800 / 4500Gm used (rb) white lettering - grid clip - side getter
1 6AH4-GT $2.00 GE 90% 4500 / 4500Gm used (ob) white lettering - grid clip - side getter
1 6AH4-GT $2.00 RCA 90% 3300 / 4500Gm used (L) grid clip - side getter - silver lettering
1 6AH4-GT $1.00 RCA 110% 4800 / 4500Gm used leaky (5M) (rb) silver lettering - grid clip - side getter
1 6AH4-GT $1.00 RCA 110% 4700 / 4500Gm used leaky (5M) (OB) red lettering - grid clip - side getter
1 6CK4 $15.00 RCA 130% 7250 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 110% 6750 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 110% 6750 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 130% 7000 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 130% 7000 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 130% 7000 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 140% 7000 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 RCA 120% 6500 / 5500Gm NOS (OB) red lettering
1 6CK4 $15.00 GE 110% 6250 / 5500Gm NOS (OB) white lettering
1 6CK4 $15.00 GE 120% 6250 / 5500Gm NOS (OB) white lettering
1 6CK4 $15.00 GE 110% 7000 / 5500Gm NOS (OB) white lettering
1 6CK4 $15.00 Tung-Sol 140% 7000 / 5500Gm NOS (OB) ---
1 6CK4 $15.00 Tung-Sol 120% 6750 / 5500Gm NOS (OB) ---
1 6CK4 $15.00 Sylvania 110% 6750 / 5500Gm NOS (OB) yellow lettering
1 6CK4 $15.00 Sylvania 120% 7000 / 5500Gm NOS (OB) yellow lettering
1 6CK4 $15.00 Sylvania 130% 6500 / 4500Gm NOS (wb) green lettering
1 6CK4 $15.00 Hytron 115% 6250 / 5500Gm NOS (OB) ---
1 6CK4 $10.00 Sylvania 120% 5550 / 5500Gm NOS (OB) yellow lettering
1 6CK4 $10.00 GE 110% 5500 / 5500Gm NOS (OB) red lettering
1 6CK4 $8.00 Sylvania 90% 5000 / 5500Gm used (OB) yellow lettering
1 6CK4 $8.00 RCA 100% 7500 / 4500Gm used (rb) ---
1 6CK4 $8.00 GE 100% 7000 / 5500Gm used (ob) white 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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MDB Ventures Home

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