MDB Ventures Radio Tubes

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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/loktal, miniature, subminature, metal, power, transmitter tubes and many more.

MDB Ventures Radio Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 6A8-GT $7.50 RCA 150% / 110% 1250 / 1000: 450 / 240Gm NOS (OB) metal base band - red lettering
1 6A8-GT $7.50 RCA 140% / 110% 1500 / 1000: 450 / 240Gm NOS (OB) sealed in box - damaged box
1 6A8-GT $7.50 RCA 140% / 110% 1600 / 1000: 400 / 240Gm NOS (OB) metal base band - silver lettering
1 6A8-GT $7.50 RCA 140% / 110% 1100 / 1000: 400 / 240Gm NOS (OB) metal base band - red lettering
1 6A8-GT $7.50 Sylvania 150% / 120% 1400 / 1000: 600 / 240Gm NOS (OB) metal base band - green lettering
1 6A8-GT $7.50 National Union 130% / 120% 1500 / 1000: 400 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 National Union 140% / 110% 1200 / 1000: 400 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 National Union 140% / 110% 1200 / 1000: 400 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 CBS 150% / 120% 1500 / 1000: 650 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 CBS 140% / 130% 1500 / 1000: 750 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 CBS / Hytron 120% / 120% 1750 / 1000: 650 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 Philco 150% / 110% 1400 / 1000: 400 / 240Gm NOS (OB) metal base band
1 6A8-GT $7.50 Philco 120% / 110% 1450 / 1000: 400 / 240Gm NOS (OB) metal base band - damaged box
1 6A8 $7.50 GE 120% / 120% 1300 / 1000: 350 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 120% / 115% 1350 / 1000: 350 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 120% / 130% 1200 / 1000: 250 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 120% / 115% 1250 / 1000: 350 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 110% / 120% 1400 / 1000: 400 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 120% / 120% 1350 / 1000: 350 / 240Gm NOS (OB) metal - white lettering - torn box flap
1 6A8 $7.50 GE 110% / 110% 1300 / 1000: 350 / 240Gm NOS (OB) metal - white lettering
1 6A8 $7.50 GE 140% / 140% 1500 / 1000: 400 / 240Gm NOS (OB) metal - white lettering - torn box flap
1 6A8 $7.50 GE 130% / 110% 1250 / 1000: 250 / 240Gm NOS (OB) metal - white lettering - torn box flap
1 6A8 $7.50 GE 110% / 120% 1400 / 1000: 300 / 240Gm NOS (OB) metal - white lettering - torn box flap
1 6A8 $7.50 GE 140% / 110% 1200 / 1000: 300 / 240Gm NOS (OB) metal - white lettering - torn box flap
1 6A8 $7.50 RCA 110% / 120% 1200 / 1000: 400 / 240Gm NOS (OB) metal - silver lettering
1 6A8 $7.50 RCA 140% / 110% 1100 / 1000: 350 / 240Gm NOS (OB) metal - sealed in box
1 6A8 $7.50 RCA Victor 120% / 110% 1100 / 1000: 350 / 240Gm NOS (OB) metal - sealed in box
1 6A8 $7.50 Ken-Rad 140% / 110% 1350 / 1000: 300 / 240Gm NOS (OB) metal - JAN
1 6A8 $7.50 Ken-Rad 110% / 110% 1250 / 1000: 300 / 240Gm NOS (OB) metal - JAN
1 6A8 $7.50 Ken-Rad 110% / 110% 1450 / 1000: 300 / 240Gm NOS (OB) metal - JAN
1 6A8 $7.50 Tung-Sol 110% / 110% 1450 / 1000: 300 / 240Gm NOS (OB) metal
1 6A8 $7.50 Sylvania 120% / 110% 1250 / 1000: 350 / 240Gm NOS (OB) metal - yellow lettering - damaged box
1 6A8-GT $4.00 Raytheon 140% / 110% 1400 / 1000: 600 / 240Gm used (rb) metal base band
1 6A8-GT $4.00 Tung-Sol 120% / 120% 1500 / 1000: 600 / 240Gm used (rb) metal base band
1 6A8-GT $4.00 Hytron 100% / 150% 1600 / 1000: 600 / 240Gm used (rb) metal base band
1 6A8-GT $4.00 GM 100% / 120% 1200 / 1000: 600 / 240Gm used (rb) metal base band
1 6A8-GT $4.00 Aristrocrat 140% / 140% 1300 / 1000: 600 / 240Gm used (rb) metal base band
1 6A8 $3.00 RCA 100% / 100% 1000 / 1000: 300 / 240Gm used (rb) metal - red lettering
1 6A8 $3.00 RCA 110% / 90% 1000 / 1000: 300 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 140% / 90% 1000 / 1000: 350 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 110% / 100% 1200 / 1000: 250 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 110% / 100% 1000 / 1000: 250 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 130% / 100% 1200 / 1000: 250 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 110% / 110% 1000 / 1000: 300 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA 120% / 100% 950 / 1000: 250 / 240Gm used (rb) metal - silver lettering
1 6A8 $3.00 RCA Victor 90% / 120% 1200 / 1000: 400 / 240Gm used (rb) metal
1 6A8 $3.00 RCA Victor 90% / 90% 750 / 1000: 300 / 240Gm used (rb) metal
1 6A8 $3.00 RCA Victor 120% / 100% 1000 / 1000: 300 / 240Gm used (rb) metal
1 6A8 $2.50 Tung-Sol 110% / 90% 900 / 1000: 250 / 240Gm used (rb) metal
1 6A8 $2.50 Tung-Sol 100% / 120% 1000 / 1000: 400 / 240Gm used (rb) metal
1 6A8 $2.50 GE 110% / 110% 1350 / 1000: 400 / 240Gm used (wb) metal - white lettering
1 6A8 $2.50 Philco 120% / 100% 1200 / 1000: 250 / 240Gm used (rb) metal
1 6A8 $2.50 Sylvania 90% / 100% 1250 / 1000: 350 / 240Gm used (rb) metal - green lettering
1 6A8 $2.50 Sylvania 100% / 100% 800 / 1000: 300 / 240Gm used (rb) metal - yellow lettering
1 6A8 $2.50 Sylvania 100% / 120% 1200 / 1000: 350 / 240Gm used (rb) metal - green lettering
1 6A8 $2.50 National Union 120% / 110% 1000 / 1000: 350 / 240Gm used (rb) metal
1 6A8 $2.50 National Union 150% / 110% 1200 / 1000: 350 / 240Gm used (rb) metal
1 6A8 $2.50 Raytheon 100% / 110% 1300 / 1000: 300 / 240Gm used (rb) metal
1 6A8 $2.50 Knight 90% / 90% 1000 / 1000: 250 / 240Gm used (rb) metal
1 6A8 $2.50 Philco 120% / 100% 1200 / 1000: 250 / 240Gm used (rb) metal
1 6A8 $2.50 Tung-Sol 90% / 140% 1200 / 1000: 300 / 240Gm used (L) metal
1 6A8 $2.50 GE 110% / 90% 950 / 1000: 400 / 240Gm used (L) metal - red lettering
1 6A8 $2.50 Ken-Rad 140% / 90% 900 / 1000: 400 / 240Gm used (L) metal - JAN
1 6A8 $2.50 Delco 100% / 90% 700 / 1000: 300 / 240Gm used (L) metal
1 12A8-GT / VT-151-B $5.00 Sylvania 140% / 120% 1400 / 1000: 350 / 240Gm NOS (OB) metal base band - black lettering
1 12A8-GT $3.00 RCA 120% / 150% 1500 / 1000: 800 / 240Gm NOS (OB) metal base band - black lettering
1 12A8-GT $3.00 RCA 140% / 110% 1100 / 1000: 600 / 240Gm NOS (OB) metal base band - black lettering
1 12A8-GT $3.00 RCA 110% / 140% 1600 / 1000: 650 / 240Gm NOS (OB) metal base band - black lettering
1 12A8-GT $3.00 RCA Victor 130% / 110% 1250 / 1000: 450 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 RCA Victor 120% / 110% 1200 / 1000: 500 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 RCA Victor 120% / 100% 1000 / 1000: 500 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 RCA Victor 120% / 110% 1200 / 1000: 500 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 GE 140% / 120% 1200 / 1000: 500 / 240Gm NOS (OB) sealed in box
1 12A8-GT $3.00 GE 140% / 120% 1100 / 1000: 450 / 240Gm NOS (OB) sealed in box
1 12A8-GT $3.00 GE 120% / 110% 1400 / 1000: 450 / 240Gm NOS (OB) metal base band - black lettering
1 12A8-GT $3.00 GE 140% / 130% 1450 / 1000: 600 / 240Gm NOS (OB) metal base band - white lettering
1 12A8-GT $3.00 GE 120% / 110% 1500 / 1000: 500 / 240Gm NOS (OB) metal base band - white lettering
1 12A8-GT $3.00 GE 140% / 110% 1200 / 1000: 400 / 240Gm NOS (OB) metal base band - white lettering
1 12A8-GT $3.00 GE 130% / 110% 1200 / 1000: 300 / 240Gm NOS (OB) metal base band - white lettering
1 12A8-GT $3.00 Tung-Sol 140% / 120% 1500 / 1000: 500 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 Tung-Sol 130% / 140% 1400 / 1000: 600 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 Raytheon 130% / 110% 1450 / 1000: 500 / 240Gm NOS (OB) sealed in box
1 12A8-GT $3.00 Raytheon 140% / 110% 1500 / 1000: 600 / 240Gm NOS (OB) ---
1 12A8-GT $3.00 Delco 140% / 110% 1400 / 1000: 600 / 240Gm NOS (OB) metal base band - damaged box
1 12A8-GT $3.00 Chancellor 130% / 130% 1200 / 1000: 450 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 National Union 110% / 110% 1100 / 1000: 400 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 National Union 110% / 110% 1200 / 1000: 400 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 National Union 140% / 110% 1350 / 1000: 400 / 240Gm NOS (OB) metal base band
1 12A8-GT $3.00 National Union 100% / 100% 1200 / 1000: 400 / 240Gm NOS (OB) metal base band
1 12A8-GT $1.50 GE 120% / 120% 1050 / 1000: 450 / 240Gm used (rb) metal base band - black lettering
1 12A8-GT $1.50 RCA Victor 130% / 110% 800 / 1000: 450 / 240Gm used (ob) metal base band
1 12A8-GT $1.50 National Union 140% / 110% 1300 / 1000: 400 / 240Gm used (wb) metal base band
1 12A8-GT $1.50 National Union 110% / 140% 1800 / 1000: 600 / 240Gm used (rb) metal base band
1 12A8-GT $1.50 unknown 130% / 90% 1050 / 1000: 400 / 240Gm used (wb) metal base band
1 12A8-GT $1.50 unknown 130% / 100% 1250 / 1000: 450 / 240Gm used (rb) metal base band
1 12A8-GT $1.50 unknown 130% / 100% 1150 / 1000: 400 / 240Gm used (rb) metal base band
1 12A8-GT $1.00 Sylvania 130% / 120% 1100 / 1000: 500 / 240Gm NOS (OB) metal base band - green lettering - base band is split
1 12A8-GT $1.00 RCA 120% / 110% 800 / 1000: 400 / 240Gm used (rb) metal base band - black lettering
1 12A8-GT $1.50 Super Silvertone 90% / 130% 1300 / 1000: 500 / 240Gm used (rb) metal base band
1 12A8-GT $1.50 Sparton 130% / 100% 1350 / 1000: 350 / 240Gm used (rb) metal base band
1 12A8-GT $0.50 RCA 140% / 100% 1100 / 1000: 500 / 240Gm used (ob) metal base band - red lettering - base band is split
1 12A8-GT $0.50 National Union 110% / 110% 1300 / 1000: 400 / 240Gm used (ob) metal base band - base band is split
1 12A8-GT $0.50 CBS / Hytron 130% / 110% 1250 / 1000: 500 / 240Gm used (ob) metal base band - minor rust on base
1 12A8-GT $0.50 CBS / Hytron 130% / 100% 1200 / 1000: 500 / 240Gm used (ob) metal base band - minor rust on base
1 6B8-GT $7.50 Tung-Sol 110% diodes: 120% / 120% 1400 / 1150Gm NOS (OB) metal base band
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 120% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 120% diodes: 110% / 110% 1450 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 120% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 130% diodes: 110% / 110% 1600 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 110% diodes: 110% / 110% 1450 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 130% diodes: 110% / 110% 1600 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 RCA 120% diodes: 110% / 110% 1550 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 Ken-Rad 120% diodes: 110% / 110% 1450 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army
1 6B8 / VT-93 $2.50 Ken-Rad 100% diodes: 110% / 110% 1200 / 1150Gm NOS (OB) metal - US Army - sealed in box
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - US Army - sealed in box
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 120% 1300 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 120% diodes: 120% / 110% 1400 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 120% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - JAN
1 6B8 / VT-93 $2.50 Ken-Rad 120% diodes: 120% / 120% 1300 / 1150Gm NOS (OB) metal - JAN
1 6B8 $2.50 RCA 110% diodes: 110% / 120% 1400 / 1150Gm NOS (OB) metal - silver lettering
1 6B8 $2.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - red lettering
1 6B8 $2.50 RCA 110% diodes: 110% / 120% 1400 / 1150Gm NOS (OB) metal - red lettering
1 6B8 $2.50 GE 110% diodes: 120% / 120% 1300 / 1150Gm NOS (OB) metal - sealed in box
1 6B8 $2.50 GE 110% diodes: 110% / 110% 1400 / 1150Gm NOS (OB) metal - white lettering
1 6B8 $2.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm NOS (OB) metal - sealed in box
1 6B8 $2.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm NOS (OB) metal - sealed in box
1 6B8 $2.50 Tung-Sol 120% diodes: 110% / 110% 1550 / 1150Gm NOS (OB) metal
1 6B8 $2.50 Philco 110% diodes: 110% / 120% 1400 / 1150Gm NOS (OB) metal
1 6B8 $2.50 Philco 120% diodes: 110% / 120% 1500 / 1150Gm NOS (OB) metal
1 6B8 $2.50 National Union 120% diodes: 110% / 110% 1700 / 1150Gm NOS (OB) metal
1 6B8 $2.50 Natioanl Union untested sealed in box NOS (OB) metal
1 6B8 / VT-93 $1.50 Ken-Rad 110% diodes: 110% / 110% 1250 / 1150Gm used (ob) metal
1 6B8 / VT-93 $1.50 Ken-Rad 120% diodes: 110% / 110% 1450 / 1150Gm used (rb) metal - JAN
1 6B8 / VT-93 $1.50 Ken-Rad 120% diodes: 110% / 110% 1450 / 1150Gm used (rb) metal
1 6B8 / VT-93 $1.50 RCA 100% diodes: 100% / 110% 1300 / 1150Gm used (rb) metal - US Army
1 6B8 / VT-93 $1.50 RCA 100% diodes: 110% / 110% 1300 / 1150Gm used (rb) metal - US Army
1 6B8 / VT-93 $1.50 RCA 120% diodes: 110% / 110% 1550 / 1150Gm used (rb) metal - silver lettering
1 6B8 $1.50 RCA 110% diodes: 110% / 110% 1400 / 1150Gm used (rb) metal - silver lettering
1 6B8 $1.50 National Union 130% diodes: 110% / 110% 1700 / 1150Gm used (wb) metal
1 6B8 / VT-93 $1.50 Ken-Rad 110% diodes: 110% / 110% 1300 / 1150Gm used (ob) metal
1 6B8 / VT-93 $1.50 Ken-Rad 100% diodes: 110% / 110% 1250 / 1150Gm used (L) metal
1 6B8 / VT-93 $1.50 Tung-Sol 110% diodes: 110% / 120% 1250 / 1150Gm used (L) metal - JAN
1 6B8 $1.50 RCA 110% diodes: 110% / 110% 1450 / 1150Gm used (L) metal - silver lettering
1 6B8 $1.50 Dumont 110% diodes: 110% / 110% 1400 / 1150Gm used (L) metal
1 6B8 / VT-93 $1.00 Ken-Rad 90% diodes: 90% / 90% 1000 / 1150Gm used (rb) metal
1 6B8 / VT-93 $1.00 Ken-Rad 90% diodes: 110% / 100% 1150 / 1150Gm used (rb) metal - JAN
1 6B8 / VT-93 $1.00 RCA 120% diodes: 90% / 110% 1600 / 1150Gm used (L) metal
1 6B8 / VT-93 $1.00 RCA 90% diodes: 110% / 110% 1200 / 1150Gm used (rb) metal - US Army
1 6B8 / VT-93 $1.00 RCA 90% diodes: 100% / 110% 1250 / 1150Gm used (rb) metal - US Army
1 6B8 $1.00 Truetone 110% diodes: 100% / 90% 1300 / 1150Gm used (rb) metal
1 6B8 $1.00 unknown 110% diodes: 110% / 110% 1150 / 1150Gm used (L) metal

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, (M)=Metal, (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 Radio 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