Welcome to MDB Ventures
Audio Tube Store

MDB Ventures Home

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

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 6DW5 $5.00 RCA 110% 6500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 6500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 120% 6500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 105% 7000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 115% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7500 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7750 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 7750 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 8000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 8000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 120% 8000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 6750 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 6250 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 RCA 110% 6000 / 5500Gm NOS (OB) red lettering
1 6DW5 $5.00 Sylvania 110% 7500 / 5500Gm NOS (OB) yellow lettering
1 6DW5 $2.00 RCA 100% 6750 / 5500Gm used (OB) red lettering
1 6DW5 $2.00 RCA 105% 5000 / 5500Gm used (OB) red lettering
1 6DW5 $2.00 RCA 110% 5000 / 5500Gm used (OB) red lettering
1 6DW5 $2.00 RCA 110% 5000 / 5500Gm used (OB) red lettering
1 6DW5 $1.00 RCA 105% 6500 / 5500Gm used (OB) red lettering
1 6HB6 / 6HA6 $6.00 Amperex 130% 12000 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 130% 12500 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 130% 11000 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 130% 13500 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 140% 13500 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 120% 12000 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge) - damaged box
1 6HB6 / 6HA6 $6.00 Amperex 120% 11000 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 120% 12500 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 120% 11500 / 10000Gm NOS (OB) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $6.00 Amperex 120% 12500 / 10000Gm NOS (wb) world logo - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 Sylvania 120% 11000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 Sylvania 120% 11000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 Sylvania 120% 11500 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 Sylvania 120% 13500 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 GE 110% 13000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 120% 12000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa - torn box flap
1 6HB6 / 6HA6 $5.00 GE 120% 12500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 115% 13000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 120% 12500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 120% 13500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 115% 13000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 GE 110% 12000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Motorola Golden 115% 12000 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Motorola Golden 130% 14000 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Motorola Golden 120% 13500 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Motorola Golden 120% 12000 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Motorola Golden 120% 12000 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa
1 6HB6 / 6HA6 $5.00 Zenith 120% 12500 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 Zenith 110% 12500 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 110% 11000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 12500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 12500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 12500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 12000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 12000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 13000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $5.00 RCA 120% 14500 / 10000Gm NOS (OB) red lettering - top halo getter - britain
1 6HB6 / 6HA6 $5.00 RCA 130% 15000 / 10000Gm NOS (OB) red lettering - top halo getter - britain
1 6HB6 / 6HA6 $5.00 RCA 115% 14000 / 10000Gm NOS (OB) red lettering - top halo getter - britain
1 6HB6 / 6HA6 $5.00 RCA 110% 14000 / 10000Gm NOS (OB) red lettering - top halo getter - britain
1 6HB6 / 6HA6 $5.00 RCA 110% 14000 / 10000Gm NOS (OB) red lettering - top halo getter - britain
1 6HB6 $6.00 Tung-Sol 130% 13000 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa
1 6HB6 $6.00 Tung-Sol 110% 12500 / 10000Gm NOS (OB) worn box - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 RCA 130% 14000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 130% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 130% 11000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 140% 13500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 110% 14000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 RCA 120% 11000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 125% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 RCA 120% 12500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Philco 120% 13000 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Philco 120% 12000 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Lindal 120% 15000 / 10000Gm NOS (OB) top halo getter - japan
1 6HB6 $5.00 Lindal 120% 15000 / 10000Gm NOS (OB) top halo getter - japan
1 6HB6 $5.00 ITT 130% 15000 / 10000Gm NOS (OB) top halo getter - japan
1 6HB6 $5.00 Admiral 110% 12000 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Zenith 120% 11000 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Zenith 110% 13500 / 10000Gm NOS (ob) (M9) grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 Zenith 130% 14500 / 10000Gm NOS (ob) (M9) grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 130% 11000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 120% 14000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 120% 11500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa - torn box flap
1 6HB6 $5.00 GE 120% 11500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 120% 12500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 120% 12000 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 GE 115% 12500 / 10000Gm NOS (OB) white lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $5.00 Sylvania 110% 11500 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 125% 12000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 110% 12000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 125% 12500 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 120% 14000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 110% 12000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $5.00 Sylvania 115% 12000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 / 6HA6 $2.00 GE 110% 11000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 6HB6 $2.50 Tung-Sol 140% 15000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 6HB6 $2.00 Motorola Golden 100% 11000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $2.00 Sylvania 120% 10500 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $2.00 Admiral 100% 10500 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $2.00 Zenith 110% 13000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 6HB6 $2.00 GE 120% 14000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 6HB6 $2.00 GE 100% 10000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 6HB6 $1.00 GE 90% 12000 / 10000Gm used (rb) red lettering - grid 'c' clip - top halo getter - usa
1 6HB6 $1.00 RCA 90% 11000 / 10000Gm used (rb) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $1.00 RCA 90% 10000 / 10000Gm used (rb) red lettering - grid 'c' clip - top halo getter - usa (ge)
1 6HB6 $1.00 Motorola Golden 90% 10000 / 10000Gm used (rb) grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 130% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 115% 11000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 125% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 130% 14500 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 110% 12000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 RCA 130% 15000 / 10000Gm NOS (OB) red lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 Sylvania 130% 15000 / 10000Gm NOS (OB) yellow lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 Tung-Sol 120% 14500 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 Tung-Sol 120% 13500 / 10000Gm NOS (OB) grid 'c' clip - top halo getter - usa
1 15HB6 $3.00 Motorola Golden 110% 11000 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa (ge)
1 15HB6 $3.00 Motorola 130% 13500 / 10000Gm NOS (OB) green lettering - grid 'c' clip - top halo getter - usa (ge)
1 15HB6 $1.00 Motorola Golden 100% 12000 / 10000Gm used (rb) green lettering - grid 'c' clip - top halo getter - usa
1 15HB6 $1.00 unknown 120% 13500 / 10000Gm used (rb) grid 'c' clip - top halo getter
1 6S4 $5.00 RCA 110% 4400 / 4150Gm NOS (OB) white lettering
1 6S4 $5.00 CBS 130% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 RCA 120% 4400 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4400 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4400 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4600 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4600 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4600 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4600 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4900 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4200 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4200 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4250 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4300 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4400 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4400 / 4150Gm NOS (OB) red lettering - worn box
1 6S4A $4.00 RCA 110% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 110% 4900 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 115% 4400 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4700 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 5000 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 5000 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 5000 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 130% 5100 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 140% 5000 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 140% 5200 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 RCA 120% 4500 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 GE 110% 4600 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 GE 110% 4600 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4500 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4400 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4400 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4400 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 120% 4600 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4800 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4800 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 4800 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 5000 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 5000 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 110% 5000 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 115% 4700 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 GE 115% 4700 / 4150Gm NOS (OB) white lettering
1 6S4A $4.00 Sylvania 120% 5000 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 Sylvania 120% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 Sylvania 120% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 Sylvania 120% 4800 / 4150Gm NOS (OB) red lettering
1 6S4A $4.00 Sylvania 120% 4800 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 4900 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 4600 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 4600 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5000 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5000 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5100 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5200 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5200 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5200 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5400 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 120% 5400 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5700 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5200 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5200 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5000 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5000 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5400 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 130% 5800 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 115% 5000 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 110% 4500 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 110% 4600 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Sylvania 110% 4800 / 4150Gm NOS (OB) yellow lettering
1 6S4A $4.00 Westinghouse 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 4800 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5000 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5000 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 5200 / 4150Gm NOS (OB) damaged box
1 6S4A $4.00 Westinghouse 130% 5900 / 4150Gm NOS (OB) damaged box
1 6S4A $4.00 Westinghouse 130% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 130% 5500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 130% 5600 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 115% 5000 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 125% 5400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 110% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 120% 4800 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Westinghouse 125% 5000 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 120% 4400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 120% 4600 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 120% 5400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 110% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 110% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Raytheon 140% 5900 / 4150Gm NOS (OB) water dmaaged box
1 6S4A $4.00 Zenith 110% 4800 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Zenith 110% 4600 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Zenith 110% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Zenith 130% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Zenith 110% 4400 / 4150Gm NOS (OB) worn box
1 6S4A $4.00 Zenith 115% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 CBS 120% 4600 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Philco 110% 4400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Magnavox 130% 5400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Magnavox 130% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Magnavox 130% 5300 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Motorola 110% 4400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Motorola 110% 4400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Motorola 110% 4200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Motorola 115% 4500 / 4150Gm NOS (OB) ---
1 6S4A $4.00 Lindal 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 ITT 120% 5200 / 4150Gm NOS (OB) ---
1 6S4A $4.00 ITT 130% 5400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 ITT 140% 5400 / 4150Gm NOS (OB) ---
1 6S4A $4.00 ITT 140% 6250 / 4150Gm NOS (OB) ---
1 6S4A $2.00 RCA 120% 4700 / 4150Gm used (rb) red lettering
1 6S4A $2.00 RCA 100% 3800 / 4150Gm used (rb) red lettering
1 6S4A $2.00 RCA 100% 4200 / 4150Gm used (rb) white lettering
1 6S4A $2.00 RCA 110% 4200 / 4150Gm used (rb) white lettering
1 6S4A $2.00 Sylvania 110% 4600 / 4150Gm used (rb) yellow lettering
1 6S4A $2.00 Sylvania 100% 4600 / 4150Gm used (rb) yellow lettering
1 6S4A $2.00 Sylvania 100% 4100 / 4150Gm used (rb) yellow lettering
1 6S4A $2.00 Sylvania 100% 4400 / 4150Gm used (rb) yellow lettering
1 6S4A $2.00 Sylvania 100% 3900 / 4150Gm used (rb) red lettering
1 6S4A $2.00 Sylvania 120% 4600 / 4150Gm used (rb) red lettering
1 6S4A $2.00 Sylvania 120% 5400 / 4150Gm used (rb) red lettering
1 6S4A $2.00 CBS 100% 3900 / 4150Gm used (rb) ---
1 6S4A $2.00 Motorola 100% 4100 / 4150Gm used (rb) ---
1 6S4A $2.00 Amperex 110% 4100 / 4150Gm used (rb) world logo
1 6S4A $2.00 Tung-Sol 110% 3900 / 4150Gm used (rb) ---
1 6S4A $1.00 unknown 125% 5400 / 4150Gm used (rb) ---
1 6S4A $1.00 GE 90% 3700 / 4150Gm used (rb) white lettering
1 6S4A $1.00 RCA 90% 3200 / 4150Gm used (rb) white lettering
1 6S4A $1.00 RCA 90% 3500 / 4150Gm used (rb) red lettering
1 6S4A $1.00 Channel Master 90% 4000 / 4150Gm used (rb) ---
1 6S4A $1.00 Cornell 95% 4000 / 4150Gm used (rb) yellow lettering
1 6S4 $1.00 GE 110% 4200 / 4150Gm used (rb) white lettering
1 6S4 $1.00 GE 90% 3800 / 4150Gm used (rb) white lettering
1 6S4 $1.00 GE 90% 3900 / 4150Gm used (rb) white lettering
1 50HN5 $5.00 Motorola 130% 110dmc NOS (ob) missing box top
1 50HN5 $5.00 Motorola 110% 90dmc NOS (ob) ---
1 50HN5 $5.00 Motorola 110% 100dmc NOS (ob) ---
1 50HN5 $5.00 Motorola 130% 100dmc NOS (ob) ---
1 50HN5 $5.00 Motorola 110% 100dmc NOS (ob) ---
1 50HN5 $5.00 GE 130% 100dmc NOS (ob) white lettering
1 50HN5 $5.00 GE 130% 110dmc NOS (ob) white lettering
1 50HN5 $2.50 Motorola 120% 120dmc used (rb) ---
1 50HN5 $2.50 GE 100% 90dmc used (rb) 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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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com