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 | 6S7 | $3.00 | RCA | 120% | 2000 / 1250Gm | NOS (OB) | metal - silver lettering |
1 | 6S7 | $3.00 | RCA | 120% | 2000 / 1250Gm | NOS (OB) | metal - silver lettering |
1 | 6S7 | $3.00 | RCA | 120% | 1900 / 1250Gm | NOS (OB) | metal - silver lettering |
1 | 6S7 | $3.00 | RCA | 130% | 2000 / 1250Gm | NOS (OB) | metal - silver lettering |
1 | 6S7 | $3.00 | Ratheon | 130% | 100 / 1250Gm | NOS (OB) | metal |
1 | 6S7 | $3.00 | Philco | 120% | 1900 / 1250Gm | NOS (OB) | metal |
1 | 6S7 | $3.00 | Philco | 130% | 1900 / 1250Gm | NOS (OB) | metal |
1 | 6S7 | $3.00 | GE | 130% | 2000 / 1250Gm | NOS (OB) | metal - white lettering |
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1 | 6SR7-GT | $8.00 | Raytheon | 100% diodes 110% / 110% | 2250 / 1900Gm | NOS (OB) | black base |
1 | 6SR7-GT | $8.00 | Raytheon | 100% diodes 110% / 120% | 1900 / 1900Gm | NOS (OB) | black base |
1 | 6SR7-GT | $2.50 | Zenith | 90% diodes 120% / 120% | 1800 / 1900Gm | used (rb) | black base (cat:401-181) |
1 | 6SR7-GT | $2.50 | Raytheon | 130% diodes 60% / 60% | 2400 / 1900Gm | used (OB) | black base |
1 | 6SR7 / VT-233 | $3.00 | RCA | 110% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal - US Army |
1 | 6SR7 / VT-233 | $3.00 | RCA | 120% diodes 115% / 115% | 2250 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 6SR7 / VT-233 | $3.00 | RCA | 110% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Army |
1 | 6SR7 / VT-233 | $3.00 | RCA | 120% diodes 110% / 110% | 2050 / 1900Gm | NOS (OB) | metal - US Army |
1 | 6SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 6SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - red lettering |
1 | 6SR7 | $3.00 | RCA | 110% diodes 110% / 120% | 2100 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2150 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2050 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | RCA | 100% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 6SR7 | $3.00 | Sylvania | 110% diodes 110% / 110% | 2050 / 1900Gm | NOS (OB) | metal - yellow lettering |
1 | 6SR7 | $3.00 | Sylvania | 130% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal - yellow lettering |
1 | 6SR7 | $3.00 | Sylvania | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - yellow lettering |
1 | 6SR7 | $3.00 | Sylvania | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - yellow lettering |
1 | 6SR7 | $3.00 | Sylvania | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - yellow lettering |
1 | 6SR7 | $3.00 | Sylvania | 110% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal - green lettering |
1 | 6SR7 | $3.00 | GE | 120% diodes 110% / 110% | 2300 / 1900Gm | NOS (OB) | metal - JAN |
1 | 6SR7 | $3.00 | GE | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - JAN |
1 | 6SR7 | $3.00 | GE | 120% diodes 120% / 120% | 2200 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | GE | 120% diodes 120% / 120% | 2200 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | GE | 120% diodes 110% / 110% | 2150 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | GE | 110% diodes 120% / 120% | 2100 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | GE | 120% diodes 100% / 100% | 2100 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | GE | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 6SR7 | $3.00 | Delco | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (wb) | metal |
1 | 6SR7 | $3.00 | Tung-Sol | 130% diodes 110% / 110% | 2400 / 1900Gm | NOS (wb) | metal |
1 | 6SR7 | $3.00 | Tung-Sol | 110% diodes 120% / 110% | 2100 / 1900Gm | NOS (OB) | metal |
1 | 6SR7 | $3.00 | Ken-Rad | 110% diodes 110% / 120% | 2000 / 1900Gm | NOS (OB) | metal - sealed in box |
1 | 6SR7 | $3.00 | Ken-Rad | 120% diodes 100% / 100% | 2300 / 1900Gm | NOS (OB) | metal - damaged box |
1 | 6SR7 | $3.00 | Ken-Rad | 120% diodes 110% / 120% | 2250 / 1900Gm | NOS (OB) | metal - sealed in box - damaged box |
1 | 6SR7 | $3.00 | Delco | 120% diodes 110% / 110% | 2250 / 1900Gm | NOS (OB) | metal - sealed in box |
1 | 6SR7 | $3.00 | Delco | 130% diodes 110% / 110% | 2400 / 1900Gm | NOS (OB) | metal - sealed in box |
1 | 6SR7 | $3.00 | Delco | 130% diodes 110% / 120% | 2350 / 1900Gm | NOS (OB) | metal - sealed in box |
1 | 6SR7 | $3.00 | Delco | 120% diodes 110% / 110% | 2250 / 1900Gm | NOS (OB) | metal - sealed in box |
1 | 6SR7 / VT-233 | $1.50 | Ken-Rad | 100% diodes 110% / 110% | 1900 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | Ken-Rad | 120% diodes 120% / 110% | 2200 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | Cornell | 120% diodes 120% / 100% | 2250 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | RCA Victor | 100% diodes 110% / 110% | 1900 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | Tung-Sol | 110% diodes 120% / 120% | 1800 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | Tung-Sol | 95% diodes 110% / 100% | 1800 / 1900Gm | used (wb) | metal |
1 | 6SR7 | $1.50 | GM | 100% diodes 120% / 110% | 1950 / 1900Gm | used (rb) | metal |
1 | 6SR7 | $1.50 | GM | 130% diodes 110% / 110% | 2200 / 1900Gm | used (rb) | metal |
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1 | 12SR7-GT | $5.00 | Tung-Sol | 120% diodes 110% / 120% | 2200 / 1900Gm | NOS (OB) | black base |
1 | 12SR7-GT | $5.00 | Tung-Sol | 120% diodes 110% / 120% | 2400 / 1900Gm | NOS (wb) | black base |
1 | 12SR7-GT | $5.00 | Tung-Sol | 120% diodes 110% / 120% | 2200 / 1900Gm | NOS (wb) | black base |
1 | 12SR7-GT | $5.00 | Sylvania | 130% diodes 110% / 120% | 2400 / 1900Gm | NOS (OB) | black base - green lettering |
1 | 12SR7-GT | $2.50 | Tung-Sol | 100% diodes 100% / 120% | 2000 / 1900Gm | used (rb) | black base |
1 | 12SR7 / VT-133 | $3.00 | RCA | 110% diodes 120% / 110% | 1900 / 1900Gm | NOS (OB) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 120% diodes 120% / 120% | 2200 / 1900Gm | NOS (OB) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 110% diodes 120% / 110% | 2100 / 1900Gm | NOS (OB) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 110% diodes 110% / 110% | 1900 / 1900Gm | NOS (OB) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 110% diodes 120% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 110% diodes 110% / 110% | 1900 / 1900Gm | NOS (wb) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 120% diodes 110% / 110% | 2050 / 1900Gm | NOS (ob) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 130% diodes 110% / 110% | 2100 / 1900Gm | NOS (ob) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 115% diodes 100% / 110% | 1900 / 1900Gm | NOS (ob) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 120% diodes 110% / 100% | 2000 / 1900Gm | NOS (ob) | metal - US Army |
1 | 12SR7 / VT-133 | $3.00 | RCA | 130% diodes 100% / 100% | 2250 / 1900Gm | NOS (ob) | metal - US Army |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2150 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 120% / 120% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 130% diodes 110% / 120% | 2300 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 120% | 2150 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2300 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 120% / 120% | 2150 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 120% / 120% | 2400 / 1900Gm | NOS (OB) | metal - US Navy - damaged box |
1 | 12SR7 | $3.00 | RCA | 120% diodes 120% / 110% | 2250 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 120% / 120% | 2100 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2150 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2300 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2250 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 100% | 2000 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 1900 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 100% / 110% | 1900 / 1900Gm | NOS (OB) | metal - US Navy - damaged box |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 130% diodes 110% / 110% | 2500 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 120% | 2150 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SR7 | $3.00 | RCA | 120% diodes 110% / 110% | 1900 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 130% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - US Navy |
1 | 12SR7 | $3.00 | RCA | 110% diodes 110% / 110% | 2300 / 1900Gm | NOS (OB) | metal - silver lettering |
1 | 12SR7 | $3.00 | Raytheon | 110% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 | $3.00 | Ken-Rad | 120% diodes 110% / 110% | 2100 / 1900Gm | NOS (OB) | metal - sealed in box - damaged box |
1 | 12SR7 | $3.00 | National Union | 130% diodes 120% / 110% | 2200 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 | $3.00 | National Union | 130% diodes 110% / 100% | 2550 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 | $3.00 | National Union | 120% diodes 110% / 110% | 2400 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 | $3.00 | GE | 130% diodes 110% / 110% | 2000 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 12SR7 | $3.00 | GE | 130% diodes 110% / 110% | 2200 / 1900Gm | NOS (OB) | metal - white lettering |
1 | 12SR7 | $3.00 | Sylvania | 130% diodes 100% / 110% | 2100 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 | $3.00 | Tung-Sol | 110% diodes 110% / 110% | 1900 / 1900Gm | NOS (OB) | metal |
1 | 12SR7 / VT-133 | $1.50 | RCA | 120% diodes 110% / 110% | 2200 / 1900Gm | used (rb) | metal |
1 | 12SR7 / VT-133 | $1.50 | RCA | 110% diodes 110% / 110% | 2200 / 1900Gm | used (rb) | metal |
1 | 12SR7 / VT-133 | $1.50 | RCA | 130% diodes 110% / 110% | 2200 / 1900Gm | used (rb) | metal - US Army |
1 | 12SR7 / VT-133 | $1.50 | RCA | 110% diodes 120% / 110% | 2000 / 1900Gm | used (L) | metal |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 130% diodes 100% / 100% | 2500 / 1900Gm | used (L) | metal |
1 | 12SR7 / VT-133 | $1.50 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | used (L) | metal - US Amry |
1 | 12SR7 / VT-133 | $1.50 | RCA | 120% diodes 120% / 110% | 2300 / 1900Gm | used (L) | metal |
1 | 12SR7 / VT-133 | $1.50 | RCA | 100% diodes 120% / 110% | 2150 / 1900Gm | used (L) | metal - JAN |
1 | 12SR7 / VT-133 | $1.50 | RCA | 120% diodes 110% / 110% | 2200 / 1900Gm | used (L) | metal - US Army |
1 | 12SR7 / VT-133 | $1.50 | RCA | 100% diodes 110% / 110% | 2100 / 1900Gm | used (L) | metal - US Army |
1 | 12SR7 / VT-133 | $1.50 | RCA | 120% diodes 100% / 100% | 2100 / 1900Gm | used (L) | metal - US Army |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 110% diodes 110% / 110% | 2050 / 1900Gm | used (L) | metal - JAN |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 115% diodes 110% / 110% | 2250 / 1900Gm | used (L) | metal - JAN |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 110% diodes 110% / 110% | 2150 / 1900Gm | used (L) | metal |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 110% diodes 110% / 110% | 2000 / 1900Gm | used (rb) | metal |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 120% diodes 100% / 110% | 2150 / 1900Gm | used (L) | metal - JAN |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 140% diodes 100% / 100% | 2400 / 1900Gm | used (L) | metal - JAN |
1 | 12SR7 / VT-133 | $1.50 | Ken-Rad | 130% diodes 110% / 110% | 2150 / 1900Gm | used (L) | metal |
1 | 12SR7 | $1.50 | RCA | 120% diodes 120% / 110% | 2000 / 1900Gm | used (rb) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 120% diodes 120% / 120% | 2200 / 1900Gm | used (rb) | metal - US Army |
1 | 12SR7 | $1.50 | National Union | 100% diodes 110% / 110% | 1950 / 1900Gm | used (rb) | metal |
1 | 12SR7 | $1.50 | RCA | 110% diodes 110% / 110% | 2100 / 1900Gm | used (L) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 120% diodes 110% / 120% | 2600 / 1900Gm | used (L) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 120% diodes 110% / 110% | 2300 / 1900Gm | used (L) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 100% diodes 120% / 110% | 1950 / 1900Gm | used (L) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 110% diodes 110% / 120% | 2000 / 1900Gm | used (L) | metal - silver lettering |
1 | 12SR7 | $1.50 | Ken-Rad | 130% diodes 110% / 110% | 2250 / 1900Gm | used (L) | metal |
1 | 12SR7 | $1.50 | Raytheon | 100% diodes 90% / 100% | 1700 / 1900Gm | used (L) | metal |
1 | 12SR7 | $1.50 | Ken-Rad | 120% diodes 100% / 100% | 2000 / 1900Gm | used (L) | metal |
1 | 12SR7 | $1.50 | RCA | 130% diodes 100% / 100% | 2150 / 1900Gm | used (L) | metal - US Navy |
1 | 12SR7 | $1.50 | RCA | 110% diodes 110% / 110% | 1900 / 1900Gm | used (L) | metal |
1 | 12SR7 | $1.50 | GE | 130% diodes 110% / 110% | 2300 / 1900Gm | used (L) | metal - white lettering |
1 | 12SR7 / VT-133 | $0.50 | RCA | 110% diodes 110% / 110% | 2000 / 1900Gm | used (L) | metal - US Army - minor rust on tube |
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1 | 12SW7 | $2.50 | RCA | 150% diodes 120% / 120% | 2900 / 1900Gm | used (rb) | metal - silver lettering - 12SR7 tube marked as 12SW7 |
1 | 12SW7 | $2.50 | RCA | 130% diodes 120% / 140% | 1900 / 1900Gm | used (rb) | metal - silver lettering - 12SR7 tube marked as 12SW7 |
1 | 12SW7 | $2.50 | RCA | 130% diodes 120% / 120% | 2100 / 1900Gm | used (rb) | metal - silver lettering - 12SR7 tube marked as 12SW7 |
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1 | 6SV7 | $2.50 | Sylvania | 130% diode 110% | 2800 / 2100Gm | NOS (OB) | metal - green lettering |
1 | 6SV7 | $2.50 | Sylvania | 130% diode 110% | 2600 / 2100Gm | NOS (OB) | metal - green lettering |
1 | 6SV7 | $2.50 | Sylvania | 120% diode 110% | 2700 / 2100Gm | NOS (OB) | metal - green lettering |
1 | 6SV7 | $2.50 | Ken-Rad | 140% diode 110% | 2800 / 2100Gm | NOS (OB) | metal |
1 | 6SV7 | $2.50 | Ken-Rad | 120% diode 110% | 2800 / 2100Gm | NOS (OB) | metal |
1 | 6SV7 | $2.50 | Ken-Rad | 140% diode 110% | 2800 / 2100Gm | NOS (OB) | metal |
1 | 6SV7 | $2.50 | National Union | 130% diode 110% | 2800 / 2100Gm | NOS (OB) | metal |
1 | 6SV7 | $2.50 | GE | 140% diode 110% | 2700 / 2100Gm | NOS (OB) | metal |
1 | 6SV7 | $0.50 | GE | 50% diode 50% | 1200 / 2100Gm | used (rb) | metal - white lettering |
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1 | 6SZ7 | $2.50 | RCA | 110% diodes 120% / 110% | 1200 / 1200Gm | NOS (OB) | metal - silver lettering |
1 | 6SZ7 | $2.50 | RCA | 110% diodes 110% / 110% | 1200 / 1200Gm | NOS (OB) | metal - silver lettering |
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1 | 12SY7 | $5.00 | RCA | 130% / 120% | 1100 / 750:1200 / 750Gm | used (wb) | metal - silver lettering - JAN |
1 | 12SY7 | $5.00 | RCA | 120% / 130% | 950 / 750:1100 / 750Gm | used (wb) | metal - silver lettering - JAN |
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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and
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