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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 6AC5-G $30.00 RCA 110% 1150 / 1000Gm NOS (wb) gray coat - smooth black plate
1 6AC5-G $30.00 RCA 120% 1200 / 1000Gm NOS (wb) gray coat - smooth black plate
1 6AC5-G $30.00 RCA 120% 1250 / 1000Gm NOS (wb) gray coat - smooth black plate
1 6AC5-G $25.00 Knight 120% 1200 / 1000Gm NOS (wb) gray coat - smooth black plate
1 6AC5-G $10.00 unknown 100% 950 / 1000Gm used (rb) gray coat - smooth black plate
1 6AC5-G $12.50 Zenith 105% 1100 / 1000Gm used (L) gray coat - ribbed black plate
1 6AC5-G $12.50 Zenith 105% 1050 / 1000Gm used (L) clear glass - ribbed black plate
1 6AC5-G $12.50 Zenith 100% 1100 / 1000Gm used (L) black coat - ribbed black plate
1 6AC5-G $12.50 Sparton 100% 950 / 1000Gm used (L) clear glass - ribbed black plate
1 6AC5-G $10.00 Tung-Sol 95% 1050 / 1000Gm used (L) black coat - ribbed black plate
1 6AC5-G $8.00 Super Silvertone 90% 1100 / 1000Gm used (L) black coat - smooth black plate
1 6AC5-G $6.00 GE 85% 800 / 1000Gm used (L) gray coat - smooth black plate
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:1 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:1
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:1
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:1
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:1
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - pack:2 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - pack:2
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - pack:2
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - pack:2
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - pack:2
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - gray coat - pack:3 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - gray coat - pack:3
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - gray coat - pack:3
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - gray coat - pack:3
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - gray coat - pack:3
1 6AC5-GT $12.50 RCA 110% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:4 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:4
1 6AC5-GT $12.50 RCA 130% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:4
1 6AC5-GT $12.50 RCA 115% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:4
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:4
1 6AC5-GT $12.50 RCA 120% 1000 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:5 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:5
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:5
1 6AC5-GT $12.50 RCA 125% 1150 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:5
1 6AC5-GT $12.50 RCA 115% 1000 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:5
1 6AC5-GT $12.50 RCA 130% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:6 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 125% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:6
1 6AC5-GT $12.50 RCA 125% 1000 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:6
1 6AC5-GT $12.50 RCA 125% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:6
1 6AC5-GT $12.50 RCA 125% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:6
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:7 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:7
1 6AC5-GT $12.50 RCA 120% 1000 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:7
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:7
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:7
1 6AC5-GT $12.50 RCA 130% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:8 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:8
1 6AC5-GT $12.50 RCA 130% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:8
1 6AC5-GT $12.50 RCA 140% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:8
1 6AC5-GT $12.50 RCA 130% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:8
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:9 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 130% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:9
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:9
1 6AC5-GT $12.50 RCA 125% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:9
1 6AC5-GT $12.50 RCA 125% 1250 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:9
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:10 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:10
1 6AC5-GT $12.50 RCA 125% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:10
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:10
1 6AC5-GT $12.50 RCA 125% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:10
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:11 - buy pack for $50.00
1 6AC5-GT $12.50 RCA 130% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:11
1 6AC5-GT $12.50 RCA 115% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:11
1 6AC5-GT $12.50 RCA 130% 1100 / 1000Gm NOS (OB) red lettering - clear glass - smooth black plate - pack:11
1 6AC5-GT $12.50 RCA 120% 1150 / 1000Gm NOS (OB) white lettering - clear glass - smooth black plate - pack:11
1 6AC5-GT $10.00 Hytron 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate - pack:12 - buy pack for $40.00
1 6AC5-GT $10.00 Hytron 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate - pack:12
1 6AC5-GT $10.00 Hytron 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate - pack:12
1 6AC5-GT $10.00 Hytron 120% 1100 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate - pack:12
1 6AC5-GT $10.00 Hytron 115% 1050 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate - pack:12
1 6AC5-GT $10.00 Sylvania 125% 1200 / 1000Gm NOS (OB) yellow lettering - clear glass - smooth black plate - pack:13 - buy pack for $40.00
1 6AC5-GT $10.00 Sylvania 115% 1100 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate - pack:13
1 6AC5-GT $10.00 Sylvania 120% 1000 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate - torn box flap - pack:13
1 6AC5-GT $10.00 Sylvania 115% 1000 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate - pack:13
1 6AC5-GT $10.00 Sylvania 115% 1000 / 1000Gm NOS (OB) green lettering - black coat - ribbed black plate - damaged box - pack:13
1 6AC5-GT $10.00 Philco 115% 1000 / 1000Gm NOS (OB) sealed in box
1 6AC5-GT $10.00 Philco 130% 1050 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate - damaged box
1 6AC5-GT $10.00 Philco 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 Philco 120% 1050 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate - damaged box
1 6AC5-GT $10.00 GE 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 National Union 120% 1100 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate
1 6AC5-GT $12.50 RCA 120% 1100 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate
1 6AC5-GT $12.50 RCA 110% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate
1 6AC5-GT $12.50 RCA 120% 1200 / 1000Gm NOS (OB) white lettering - clear glass - smooth black plate
1 6AC5-GT $12.50 RCA 130% 1200 / 1000Gm NOS (OB) white lettering - clear glass - smooth black plate
1 6AC5-GT $12.50 RCA 135% 1100 / 1000Gm NOS (OB) white lettering - gray coat
1 6AC5-GT $12.50 RCA 120% 1000 / 1000Gm NOS (OB) white lettering - gray coat
1 6AC5-GT $12.50 RCA 130% 1200 / 1000Gm NOS (OB) red lettering - gray coat
1 6AC5-GT $10.00 Raytheon 115% 1000 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate - water damaged box
1 6AC5-GT $10.00 Raytheon 110% 1000 / 1000Gm NOS (OB) yellow lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 Raytheon 130% 1200 / 1000Gm NOS (OB) yellow lettering - clear glass - smooth black plate
1 6AC5-GT $10.00 Raythoen 110% 1000 / 1000Gm NOS (OB) sealed in box
1 6AC5-GT $10.00 Hytron 115% 1000 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate
1 6AC5-GT $10.00 Greylock 120% 1000 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 Wizard 120% 1100 / 1000Gm NOS (OB) red lettering - black coat - ribbed black plate - box end missing
1 6AC5-GT $10.00 Delco 120% 1000 / 1000Gm NOS (OB) white lettering - black coat - smooth black plate
1 6AC5-GT $10.00 Arcturus untested sealed in box NOS (OB) ---
1 6AC5-GT $10.00 Zenith 115% 1000 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 Zenith 115% 1100 / 1000Gm NOS (OB) white lettering - black coat - ribbed black plate
1 6AC5-GT $10.00 National Union 130% 1200 / 1000Gm NOS (OB) black coat - JAN
1 6AC5-GT $10.00 National Union 130% 1200 / 1000Gm NOS (OB) black coat - JAN
1 6AC5-GT $10.00 National Union untested heater ok NOS (OB) sealed in box - JAN
1 6AC5-GT $6.00 RCA 115% 900 / 1000Gm used (OB) red lettering - gray coat - smooth black plate
1 6AC5-GT $6.00 RCA 140% 1100 / 1000Gm used (wb) clear glass - grid 'c' clip - silver lettering
1 6AC5-GT $5.00 Hytron 130% 1000 / 1000Gm used (rb) white lettering - gray coat
1 6AC5-GT $5.00 Hytron 120% 950 / 1000Gm used (rb) white lettering - gray coat - JAN
1 6AC5-GT $5.00 Hytron 120% 1050 / 1000Gm used (rb) white lettering - black coat - ribbed black plate
1 6AC5-GT $5.00 GE 120% 1000 / 1000Gm used (wb) black coat - grid 'c' clip - silver lettering
1 6AC5-GT $5.00 Sylvania 130% 1000 / 1000Gm used (wb) black coat - grid 'c' clip - green lettering
1 6AC5-GT $5.00 Emerson 110% 1050 / 1000Gm used (rb) white lettering - gray coat - ribbed black plate
1 6AC5-GT $5.00 Philco 120% 1000 / 1000Gm used (L) black coat - grid 'c' clip - loose base
1 6AC5-GT $5.00 Silvetone 125% 1000 / 1000Gm used (L) black coat - ribbed black plate - grid 'c' clip - loose base
1 6AC5-GT $4.00 unknown 115% 1100 / 1000Gm used (rb) black coat - ribbed black plate - grid 'c' clip
1 6AC5-GT $2.00 Silvertone 90% 850 / 1000Gm used (L) black coat - ribbed black plate - grid 'c' clip
1 6DZ7 $30.00 RCA 120% / 110% 120 / 110 dmc NOS (OB) ---
1 6DZ7 $30.00 RCA 120% / 120% 110 / 120 dmc NOS (OB) ---
1 6DZ7 $30.00 RCA 115% / 120% 100 / 120 dmc NOS (OB) ---
1 6DZ7 $30.00 GE 110% / 120% 100 / 110 dmc NOS (OB) ---
1 6N6-G $29.00 GM 120% 1550 / 1300Gm NOS (wb) ---
1 6N6-G $29.00 GM 120% 1600 / 1300Gm NOS (wb) ---
1 6N6-G $29.00 Silvania 140% 1900 / 1300Gm NOS (wb) ---
1 6N6-G $32.00 Silvania 120% 1900 / 1300Gm NOS (wb) engraved base
1 6N6-G $30.00 Silvania 120% 2250 / 1300Gm NOS (OB) ---
1 6N6-G $30.00 Silvania 140% 2400 / 1300Gm NOS (OB) ---
1 6N6-G $29.00 Silvania 120% 2200 / 1300Gm NOS (OB) torn box flap
1 6N6-G $29.00 Silvania 130% 2250 / 1300Gm NOS (OB) damaged box
1 6N6-G $29.00 Philco 110% 2100 / 1300Gm NOS (ob) damaged box
1 6N6-G $18.00 Silvania 130% 1800 / 1300Gm used (rb) US Navy
1 6N6-G $16.00 Silvertone 100% 1300 / 1300Gm used (L) engraved base
1 6N6-G $16.00 GM 120% 1500 / 1300Gm used (L) engraved base
1 6N6-G $16.00 GM 120% 1600 / 1300Gm used (L) engraved base
1 6N6-G $15.00 GM 110% 1500 / 1300Gm used (L) ---
1 6N6-G $16.00 GM 130% 1700 / 1300Gm used (L) engraved base
1 6N6-G $12.00 GM 85% 1600 / 1300Gm used (wb) engraved base
1 6N6-G $15.00 Ken-Rad 100% 1800 / 1300Gm used (L) ---
1 6N6-G $15.00 Raytheon 100% 1700 / 1300Gm used (L) ---
1 6N6-G $10.00 National Union 80% 1600 / 1300Gm used (L) cat:401-101
1 6N6-G $15.00 Delco 80% 1600 / 1300Gm used (L) gray coat
1 6N6-G $15.00 Sylvania 100% 1800 / 1300Gm used (L) ---
1 6N6-G $15.00 Sylvania 115% 1900 / 1300Gm used (L) ---
1 6N6-G $15.00 Sylvania 85% 1550 / 1300Gm used (L) ---
1 6N6-G $15.00 Sylvania 110% 1950 / 1300Gm used (L) ---
1 6N6-G $15.00 RCA Victor 95% 1600 / 1300Gm used (L) black coat
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