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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 6CA7 / EL-34 $50.00 Siemens 105% 7000 / 5000Gm used (wb) (cat: au16) - no markings - one halo getter - top dimple - four staple plates
1 6CA7 / EL-34 $75.00 National Electronics 110% 7000 / 5000Gm used (wb) made by Siemens - E. Germany (cat:au16) - top dimple - one halo getter - four staple plates
1 6CA7 / EL-34 $25.00 Groove tubes 95% 7500 / 5000Gm used (wb) made by Siemens (cat:503-19 - au16) - top dimple - one halo getter - four staple plates
1 6CA7 / EL-34 $50.00 RCA 110% 7800 / 5000Gm used (OB) made in Grt. Brit. - broken locator pin (cat:au16) "cx" code - one halo getter - welded plates
1 6CA7 / EL-34 $100.00 Siemens 100% 6700 / 5000Gm used (wb) (cat:au16) matched pair #3 - top dimple - one halo getter - four staple plates - triangle "S" logo
1 6CA7 / EL-34 (pair) Siemens 100% 6700 / 5000Gm used (wb) (cat:au16) matched pair #3 - top dimple - one halo getter - four staple plates - partial "EGRO" logo
1 6CA7 / EL-34 $100.00 Marshall 100% 7100 / 5000Gm used (wb) made by Siemens (cat:au16) matched pair #1 - top dimple - one halo getter - four staple plates
1 6CA7 / EL-34 (pair) Mazda 100% 7100 / 5000Gm used (wb) made by Siemens - E. Germany (cat:au16) matched pair #1 - top dimple - one halo getter - four staple plates
1 6CA7 / EL-34 $100.00 Siemens 105% 7100 / 5000Gm used (wb) (cat:au16) matched pair #2 - top dimple - one halo getter - four staple plates - no markings
1 6CA7 / EL-34 (pair) Siemens 105% 7100 / 5000Gm used (wb) (cat:au16) matched pair #2 - top dimple - one halo getter - four staple plates - no markings
1 6L6-G / VT-115-A $35.00 RCA 110% 6500 / 5000Gm used (rb) ---
1 6L6-G $25.00 Philco 100% 6000 / 5000Gm used (wb) ---
1 6L6-GA $30.00 Sylvania 110% 6500 / 5000Gm NOS (OB) JAN
1 6L6-GA $25.00 Sylvania 110% 5500 / 5000Gm NOS (OB) ---
1 6L6-GA $25.00 Sylvania 110% 6000 / 5000Gm NOS (wb) ---
1 6L6-GA $20.00 Ken-Rad 115% 6500 / 5000Gm used (wb) (cat:au34)
1 6L6-GA $20.00 Ken-Rad 115% 6500 / 5000Gm used (wb) (cat:au34)
1 6L6-GA $20.00 Tung-Sol 100% 5800 / 5000Gm used (wb) ---
1 6L6-GB $40.00 Sylvania 110% 7500 / 5000Gm NOS (OB) ---
1 6L6-GB $40.00 Sylvania 110% 6500 / 5000Gm NOS (wb) ---
1 6L6-GB $40.00 Raytheon 110% 6000 / 5000Gm NOS (OB) ---
1 6L6-GB $20.00 RCA 110% 6500 / 5000Gm used (rb) ---
1 6L6-GB $20.00 Sylvania 110% 6500 / 5000Gm used (wb) ---
1 6L6-GB $15.00 Raytheon 100% 7450 / 5000Gm used (wb) ---
1 6L6-GB $15.00 GE 100% 6500 / 5000Gm used (wb) ---
1 6L6-GB $10.00 Sylvania 90% 6200 / 5000Gm used (wb) ---
1 6L6-GB $10.00 RCA 90% 6500 / 5000Gm used (wb) ---
1 6L6-GB $10.00 GE 90% 6500 / 5000Gm used (wb) ---
1 6L6-GB $10.00 unknown 90% 5500 / 5000Gm used (wb) ---
1 6L6-GC $30.00 RCA 95% 6000 / 5000Gm used (wb) ---
1 6L6-GC $40.00 RCA 100% 7500 / 5000Gm used (wb) ---
1 6L6-GC $20.00 Motorola 90% 7000 / 5000Gm used (rb) Golden-M
1 6L6-M / VT-115 $30.00 Ken-Rad 100% 6000 / 5000Gm NOS (wb) ---
1 6L6-M $25.00 Ken-Rad 110% 6000 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $35.00 RCA 100% 6500 / 5000Gm NOS (wb) JAN (metal)
1 6L6-M $30.00 RCA 100% 5800 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $30.00 RCA 110% 6000 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $30.00 RCA 110% 6000 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $30.00 RCA 100% 5800 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $25.00 Crosley 110% 6200 / 5000Gm NOS (wb) --- (metal)
1 6L6-M $20.00 RCA 110% 6000 / 5000Gm used (rb) --- (metal)
1 6L6-M $17.00 RCA 100% 5800 / 5000Gm used (rb) US Navy (metal)
1 6L6-M $16.00 RCA 100% 5300 / 5000Gm used (rb) --- (metal)
1 6L6-M $16.00 RCA 100% 5900 / 5000Gm used (rb) --- (metal)
1 6L6-M $14.00 RCA 110% 5600 / 5000Gm used (rb) minor rust on tube (metal)
1 6L6-M $12.50 RCA 100% 5900 / 5000Gm used (rb) US Navy - minor rust on tube (metal)
1 6L6-M $15.00 Crosley 115% 6400 / 5000Gm used (rb) --- (metal)
1 6L6-M $15.00 Ken-Rad 110% 6000 / 5000Gm used (rb) --- (metal)
1 6L6-M $12.50 Ken-Rad 100% 6000 / 5000Gm used (rb) --- (metal)
1 6L6-M $12.50 Ken-Rad 100% 6000 / 5000Gm used (rb) --- (metal)
1 6L6-M $20.00 RCA 115% 5800 / 5000Gm used (L) --- (metal)
1 6L6-M $15.00 RCA 100% 6000 / 5000Gm used (L) --- (metal)
1 6L6-M $15.00 RCA 100% 6000 / 5000Gm used (L) --- (metal)
1 6L6-M $15.00 RCA 100% 6000 / 5000Gm used (L) --- (metal)
1 6L6-M $15.00 RCA 100% 5800 / 5000Gm used (L) US Navy (metal)
1 6L6-M $10.00 RCA 110% 6500 / 5000Gm used (L) rust on tube (metal)
1 6L6-M $7.50 RCA 90% 6000 / 5000Gm used (rb) --- (metal) (cat:au1)
1 6L6-M / VT-115 $7.50 Ken-Rad 100% 6000 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $7.50 RCA 110% 6250 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $7.50 RCA 110% 6250 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $7.50 RCA 105% 5700 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $7.50 RCA 100% 4700 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $7.50 National Union 130% 5700 / 5000Gm used (L) some rust on tube - some paint flaking (metal) (cat:au1)
1 6L6-M $5.00 RCA 90% 6000 / 5000Gm used leaky (4M) (rb) --- (metal)
1 6L6-M $5.00 RCA 110% 6250 / 5000Gm used leaky (5M) (rb) --- (metal)
1 6L6-M $5.00 RCA 100% 6500 / 5000Gm used leaky (5M) (L) --- (metal) (cat:au1)
1 6L6-M $5.00 Delco 100% 6000 / 5000Gm used leaky (5M) (L) --- (metal) (cat:au1)
1 6L6-M $5.00 Tung-Sol 120% 6500 / 5000Gm used leaky (5M) (L) --- (metal) (cat:au1)
1 1614 $45.00 RCA 100% 5400 / 5000Gm NOS (OB) ---
1 1614 $20.00 RCA 100% 5700 / 5000Gm used (rb) cat:404-13a
1 1614 $20.00 RCA 100% 6500 / 5000Gm used (rb) ---
1 1614 $15.00 GE 95% 5300 / 5000Gm used (rb) ---
1 1619 / VT-164 $20.00 GE 130% 4600 / 3400Gm NOS (ob) brown base (cat:au1)
1 1619 / VT-164 $20.00 GE 130% 4400 / 3400Gm NOS (ob) brown base (cat:au1)
1 1619 / VT-164 $20.00 GE 130% 4400 / 3400Gm NOS (ob) brown base (cat:au1)
1 1619 / VT-164 $20.00 RCA 135% 3400 / 3400Gm NOS (ob) brown base (cat:au1)
1 1619 / VT-164 $15.00 RCA 130% 3400 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 130% 3500 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 135% 3500 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 140% 3600 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 140% 3500 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 140% 3900 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 RCA 140% 3800 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 Ken-Rad 140% 4000 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 Ken-Rad 140% 4000 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 Ken-Rad 140% 4000 / 3400Gm NOS (ob) JAN (cat:au1)
1 1619 / VT-164 $15.00 Ken-Rad 140% 3800 / 3400Gm NOS (ob) --- (cat:au1)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4200 / 3400Gm used (ob) JAN - damaged box (cat:au1)
1 1619 / VT-164 $8.00 Ken-Rad / GE 115% 3700 / 3400Gm used (ob) JAN (cat:au1)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4000 / 3400Gm used (rb) JAN (cat:au1)
1 1619 / VT-164 $8.00 Ken-Rad 125% 4200 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 125% 4200 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 110% 4400 / 3400Gm used (rb) JAN (cat:au34 - 404-19)
1 1619 / VT-164 $8.00 Ken-Rad 110% 4200 / 3400Gm used (rb) JAN (cat:au34 - 404-20)
1 1619 / VT-164 $8.00 Ken-Rad 120% 3900 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 110% 4000 / 3400Gm used (rb) JAN (cat:au34 - 404-22b)
1 1619 / VT-164 $8.00 Ken-Rad 110% 4000 / 3400Gm used (rb) JAN (cat:au34 - 404-22a)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4600 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4400 / 3400Gm used (wb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4600 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 120% 3900 / 3400Gm used (rb) JAN (cat:au34)
1 1619 / VT-164 $8.00 Ken-Rad 120% 3700 / 3400Gm used (L) JAN (cat:au33)
1 1619 / VT-164 $8.00 Ken-Rad 120% 3700 / 3400Gm used (L) JAN (cat:au33)
1 1619 / VT-164 $8.00 Ken-Rad 130% 3800 / 3400Gm used (L) JAN (cat:au33)
1 1619 / VT-164 $8.00 Ken-Rad 130% 4000 / 3400Gm used (rb) JAN (cat:au33)
1 1619 / VT-164 $8.00 RCA 130% 4400 / 3400Gm used (rb) US Army (cat:au34)
1 1619 / VT-164 $7.00 RCA 100% 4000 / 3400Gm used (L) cat:404-29 (cat:au1)
1 1619 / VT-164 $7.00 Ken-Rad 100% 4000 / 3400Gm used (rb) JAN (cat:au34 - 404-23a)
1 1619 / VT-164 $7.00 Ken-Rad 100% 4000 / 3400Gm used (rb) JAN (cat:au34 - 404-23b)
1 1619 / VT-164 $6.00 RCA 135% 3400 / 3400Gm used (ob) US Army (cat:au1)
1 1622 $5.00 RCA 80% 6000 / 5000Gm used leaky (5M) (OB) metal tube
1 1631 $20.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN
1 1631 $20.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN - missing box flap
1 1631 $20.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN
1 1631 $20.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN
1 1631 $20.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN
1 1631 $18.00 RCA 110% 5000 / 5000Gm NOS (ob) cat:404-12-3
1 1631 $18.00 RCA 100% 5300 / 5000Gm NOS (wb) cat:404-12-2
1 1631 $15.00 RCA 110% 6000 / 5000Gm NOS (ob) JAN - minor rust on tube
1 1631 $10.00 RCA 110% 6500 / 5000Gm used (ob) JAN - minor rust on tube
1 1631 $10.00 RCA 110% 6000 / 5000Gm used (L) JAN
1 5824 $40.00 GE 110% 4700 / 4000Gm NOS (ob) damaged box (cat:au16)
1 5824 $40.00 GE 110% 4500 / 4000Gm NOS (ob) damaged box (cat:au16)
1 5824 $40.00 GE 100% 4200 / 4000Gm used (ob) damaged box (cat:au16)
1 5881 $50.00 RCA 120% 6000 / 5000Gm used (wb) brown base
1 5881 $25.00 Tung-Sol 90% 5400 / 5000Gm used (wb) brown base
1 5932 / 6L6WGA $30.00 Sylvania 110% 6000 / 5000Gm used (L) brown base - JAN - rugged 6L6 (cat:au1)
1 5932 / 6L6WGA $30.00 Sylvania 105% 5400 / 5000Gm used (L) brown base - JAN - rugged 6L6 (cat:au1)
1 5932 / 6L6WGA $25.00 Sylvania 100% 5200 / 5000Gm used (L) brown base - chipped base - rugged 6L6 (cat:au1)
1 5998 $100.00 Tung-Sol 110% / 110% 8000 / 8300Gm used (wb) rectangular top getter - large flat gray plates - top and bottom grid clips (cat:au16)

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