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
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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 | 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 |
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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 |
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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 | 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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