|
1 | 12SK7-MG | $7.50 | Sylvania | 120% | 2400 / 2000Gm | NOS (OB) | metal / glass |
1 | 12SK7Y | $7.50 | RCA | 120% | 2400 / 2000Gm | NOS (wb) | metal - damaged box - brown base |
1 | 12SK7 / VT-131 | $5.00 | RCA | 130% | 2500 / 2000Gm | NOS (OB) | metal - US Army |
1 | 12SK7 / VT-131 | $5.00 | RCA | 110% | 2200 / 2000Gm | NOS (OB) | metal - US Army |
1 | 12SK7 / VT-131 | $5.00 | Western Electric | 120% | 2500 / 2000Gm | NOS (OB) | metal - US Army - sealed in box |
1 | 12SK7 / VT-131 | $5.00 | Western Electric | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Army - sealed in box |
1 | 12SK7 / VT-131 | $5.00 | Western Electric | 130% | 2500 / 2000Gm | NOS (OB) | metal - US Army - sealed in box |
1 | 12SK7 / VT-131 | $5.00 | Western Electric | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Army - sealed in box |
1 | 12SK7 / VT-131 | $5.00 | Ken-Rad | 130% | 2600 / 2000Gm | NOS (OB) | metal - JAN - sealed in box |
1 | 12SK7 | $5.00 | RCA | 140% | 2600 / 2000Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SK7 | $5.00 | RCA | 130% | 2600 / 2000Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SK7 | $5.00 | RCA | 120% | 2500 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SK7 | $5.00 | RCA | 110% | 2100 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 100% | 2100 / 2000Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SK7 | $5.00 | RCA | 120% | 2500 / 2000Gm | NOS (OB) | metal - US Navy - sealed in box |
1 | 12SK7 | $5.00 | RCA | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 110% | 2200 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 110% | 2200 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 110% | 2200 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 120% | 2400 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 120% | 2200 / 2000Gm | NOS (OB) | metal - US Navy |
1 | 12SK7 | $5.00 | RCA | 130% | 2400 / 2000Gm | NOS (OB) | metal - red lettering |
1 | 12SK7 | $5.00 | RCA | 120% | 2500 / 2000Gm | NOS (OB) | metal - red lettering |
1 | 12SK7 | $5.00 | RCA | 130% | 2600 / 2000Gm | NOS (OB) | metal - red lettering |
1 | 12SK7 | $5.00 | RCA | 130% | 2500 / 2000Gm | NOS (OB) | metal - red lettering |
1 | 12SK7 | $5.00 | RCA | 110% | 2300 / 2000Gm | NOS (OB) | metal - silver lettering |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2300 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2400 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 130% | 2700 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Ratheon | 120% | 2400 / 2000Gm | NOS (OB) | metal - torn box flap |
1 | 12SK7 | $5.00 | GE | 110% | 2400 / 2000Gm | NOS (OB) | metal - white lettering |
1 | 12SK7 | $5.00 | GE | 110% | 2300 / 2000Gm | NOS (OB) | metal - white lettering |
1 | 12SK7 | $5.00 | CBS | 110% | 2400 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | CBS | 110% | 2400 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | CBS | 120% | 2400 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | CBS | 110% | 2300 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Sylvania | 120% | 2400 / 2000Gm | NOS (OB) | metal - yellow lettering - damaged box |
1 | 12SK7 | $5.00 | Sylvania | 140% | 2700 / 2000Gm | NOS (OB) | metal - yellow lettering |
1 | 12SK7 | $5.00 | Sylvania | 120% | 2500 / 2000Gm | NOS (OB) | metal - yellow lettering |
1 | 12SK7 | $5.00 | Sylvania | 110% | 2100 / 2000Gm | NOS (OB) | metal - yellow lettering |
1 | 12SK7 | $5.00 | Sylvania | 110% | 2200 / 2000Gm | NOS (OB) | metal - green lettering |
1 | 12SK7 | $5.00 | Sylvania | 110% | 2300 / 2000Gm | NOS (OB) | metal - green lettering |
1 | 12SK7 | $5.00 | Sylvania | 120% | 2300 / 2000Gm | NOS (OB) | metal - green lettering |
1 | 12SK7 | $5.00 | Westinghouse | 110% | 2200 / 2000Gm | NOS (OB) | metal - damaged box |
1 | 12SK7 | $5.00 | Ken-Rad | 110% | 2200 / 2000Gm | NOS (OB) | metal - damaged box |
1 | 12SK7 | $5.00 | Motorola | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Motorola | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Motorola | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Motorola | 120% | 2500 / 2000Gm | NOS (OB) | metal |
1 | 12SK7 | $5.00 | Tung-Sol | 110% | 2400 / 2000Gm | NOS (wb) | metal |
1 | 12SK7 | $5.00 | Tung-Sol | 110% | 2300 / 2000Gm | NOS (OB) | metal |
1 | 12SK7-GT | $5.00 | CBS | 100% | 2200 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | CBS | 110% | 2600 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | CBS | 110% | 2200 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | CBS / Hytron | 130% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | CBS / Hytron | 110% | 2400 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Zalytron | 110% | 2400 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | GM / Delco | 130% | 2700 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | RCA | 110% | 2300 / 2000Gm | NOS (OB) | metal base band - black lettering |
1 | 12SK7-GT | $5.00 | Raytheon | 120% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Raythoen | 120% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Tung-Sol | 130% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Tung-Sol | 110% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Tung-Sol | 120% | 2300 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-GT | $5.00 | Tung-Sol | 130% | 2500 / 2000Gm | NOS (OB) | metal base band |
1 | 12SK7-WA | $5.00 | GE | 120% | 2600 / 2000Gm | used (wb) | metal - JAN - brown base |
1 | 12SK7-WA | $5.00 | GE | 120% | 2800 / 2000Gm | used (wb) | metal - JAN - brown base |
1 | 12SK7Y | $5.00 | RCA | 120% | 2600 / 2000Gm | used (wb) | metal - JAN - brown base |
1 | 12SK7Y | $5.00 | RCA | 110% | 2500 / 2000Gm | used (wb) | metal - JAN - brown base |
1 | 12SK7Y | $5.00 | RCA | 120% | 2500 / 2000Gm | used (rb) | metal - JAN - brown base |
1 | 12SK7-WA | $4.00 | GE | 110% | 2400 / 2000Gm | used (L) | metal - JAN - brown base |
1 | 12SK7-WA | $4.00 | GE | 110% | 2800 / 2000Gm | used (L) | metal - JAN - brown base |
1 | 12SK7-WA | $4.00 | GE | 110% | 2500 / 2000Gm | used (L) | metal - US Navy - brown base |
1 | 12SK7-WA | $4.00 | GE | 100% | 2800 / 2000Gm | used (L) | metal - JAN - brown base |
1 | 12SK7 / VT-131 | $2.00 | Ken-Rad | 120% | 2600 / 2000Gm | used (rb) | metal |
1 | 12SK7 / VT-131 | $2.00 | Ken-Rad | 120% | 2700 / 2000Gm | used (rb) | metal |
1 | 12SK7 / VT-131 | $2.00 | Ken-Rad | 110% | 2400 / 2000Gm | used (rb) | metal |
1 | 12SK7 / VT-131 | $2.00 | RCA | 120% | 2400 / 2000Gm | used (rb) | metal - US Army |
1 | 12SK7 / VT-131 | $2.00 | RCA | 120% | 2400 / 2000Gm | used (rb) | metal - US Army |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2100 / 2000Gm | used (rb) | metal |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2100 / 2000Gm | used (rb) | metal - US Army |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2400 / 2000Gm | used (rb) | metal - JAN |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2000 / 2000Gm | used (rb) | metal - JAN |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2000 / 2000Gm | used (rb) | metal - JAN |
1 | 12SK7 / VT-131 | $2.00 | RCA | 110% | 2300 / 2000Gm | used (L) | metal - JAN |
1 | 12SK7 | $2.00 | RCA | 110% | 2200 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 100% | 1900 / 2000Gm | used (rb) | metal - silver lettering |
1 | 12SK7 | $2.00 | RCA | 110% | 2200 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 100% | 2000 / 2000Gm | used (rb) | metal - silver lettering |
1 | 12SK7. | $2.00 | RCA | 120% | 2400 / 2000Gm | used (rb) | metal - silver lettering |
1 | 12SK7 | $2.00 | RCA | 100% | 2000 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 110% | 2200 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 110% | 2300 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 110% | 2200 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 115% | 2400 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 100% | 2400 / 2000Gm | used (rb) | metal - silver lettering |
1 | 12SK7 | $2.00 | RCA | 120% | 2300 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7 | $2.00 | RCA | 100% | 2100 / 2000Gm | used (rb) | metal - silver lettering - US Navy |
1 | 12SK7. | $2.00 | RCA | 120% | 2500 / 2000Gm | used (rb) | metal - red lettering |
1 | 12SK7 | $2.00 | RCA | 100% | 2100 / 2000Gm | used (rb) | metal - red lettering |
1 | 12SK7 | $2.00 | RCA | 120% | 2600 / 2000Gm | used (L) | metal - red lettering |
1 | 12SK7 | $2.00 | RCA | 120% | 2600 / 2000Gm | used (L) | metal - red lettering |
1 | 12SK7 | $2.00 | RCA | 120% | 2600 / 2000Gm | used (L) | metal - red lettering |
1 | 12SK7 | $2.00 | RCA | 100% | 2600 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7 | $2.00 | RCA Victor | 100% | 1900 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | RCA Victor | 110% | 2200 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | RCA Victor | 100% | 1900 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | RCA Victor | 120% | 2400 / 2000Gm | used (wb) | metal |
1 | 12SK7 | $2.00 | Rogers | 120% | 2200 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Rogers | 120% | 2400 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Philco | 110% | 2200 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Philco | 100% | 1900 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | GE | 100% | 2200 / 2000Gm | used (rb) | metal - white lettering |
1 | 12SK7 | $2.00 | GE | 110% | 2300 / 2000Gm | used (rb) | metal - white lettering |
1 | 12SK7 | $2.00 | GE | 100% | 1700 / 2000Gm | used (rb) | metal - white lettering |
1 | 12SK7 | $2.00 | GE | 120% | 2800 / 2000Gm | used (L) | metal - JAN - white lettering |
1 | 12SK7 | $2.00 | GM / Delco | 105% | 2100 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Tung-Sol | 130% | 2600 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Tung-Sol | 120% | 2500 / 2000Gm | used (wb) | metal |
1 | 12SK7 | $2.00 | Tung-Sol | 110% | 2500 / 2000Gm | used (L) | metal |
1 | 12SK7 | $2.00 | Tung-Sol | 110% | 2300 / 2000Gm | used (L) | metal |
1 | 12SK7 | $2.00 | Ken-Rad | 110% | 2400 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Ken-Rad | 110% | 2500 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Ken-Rad | 120% | 2400 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Sylvania | 120% | 2600 / 2000Gm | used (rb) | metal - yellow lettering |
1 | 12SK7 | $2.00 | Sylvania | 100% | 2000 / 2000Gm | used (rb) | metal - green lettering |
1 | 12SK7 | $2.00 | Silvertone | 130% | 2500 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Wards Super Airline | 120% | 2200 / 2000Gm | used (rb) | metal |
1 | 12SK7 | $2.00 | Ken-Rad | 100% | 1700 / 2000Gm | used (L) | metal |
1 | 12SK7 | $2.00 | RCA | 100% | 2200 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7-GT | $2.00 | Silertone | 100% | 1800 / 2000Gm | used (rb) | metal base band |
1 | 12SK7-GT | $2.00 | Tung-Sol | 100% | 2400 / 2000Gm | used (rb) | metal base band |
1 | 12SK7-GT | $2.00 | Raytheon | 120% | 2400 / 2000Gm | used (rb) | metal base band |
1 | 12SK7-GT | $2.00 | RCA | 100% | 2200 / 2000Gm | used (wb) | metal base band |
1 | 12SK7-GT | $2.00 | unknown | 130% | 2500 / 2000Gm | used (rb) | metal base band |
1 | 12SK7-GT | $2.00 | Hytron | 100% | 2100 / 2000Gm | used (L) | metal base band |
1 | 12SK7-GT | $2.00 | Hytron | 100% | 2000 / 2000Gm | used (L) | metal base band |
1 | 12SK7-GT | $2.00 | RCA | 125% | 2600 / 2000Gm | used (L) | metal base band - black lettering |
1 | 12SK7-WA | $1.00 | GE | 110% | 2600 / 2000Gm | used (L) | metal - JAN - brown base - dent in tube |
1 | 12SK7 / VT-131 | $1.00 | RCA | 90% | 1800 / 2000Gm | used (L) | metal - JAN |
1 | 12SK7 | $1.00 | RCA | 90% | 2200 / 2000Gm | used (L) | metal - minor rust on tube - silver lettering |
1 | 12SK7 | $1.00 | RCA | 90% | 1500 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7 | $1.00 | RCA | 90% | 1800 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7 | $1.00 | RCA | 90% | 1700 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7 | $1.00 | RCA | 90% | 2000 / 2000Gm | used (L) | metal - silver lettering |
1 | 12SK7 | $1.00 | Ken-Rad | 90% | 1800 / 2000Gm | used (L) | metal |
1 | 12SK7 | $1.00 | Tung-Sol | 90% | 1900 / 2000Gm | used (L) | metal |
1 | 12SK7 | $1.00 | GE | 90% | 1900 / 2000Gm | used (L) | metal - white lettering |
1 | 12SK7 | $1.00 | Sylvania | 90% | 1600 / 2000Gm | used (L) | metal - green lettering |
1 | 12SK7 | $1.00 | Wards Super Airlin | 90% | 1700 / 2000Gm | used (L) | metal |
1 | 12SK7 | $1.00 | Westinghouse | 90% | 1800 / 2000Gm | used (L) | metal |
1 | 12SK7-GT | $1.00 | Sylvania | 90% | 2200 / 2000Gm | used (rb) | metal base band - black lettering |
1 | 12SK7-GT | $1.00 | Raytheon | 90% | 1700 / 2000Gm | used (rb) | metal base band |
1 | 12SK7-GT | $1.00 | National Union | 90% | 2400 / 2000Gm | used (L) | metal base band |
1 | 12SK7-GT | $1.00 | National Union | 90% | 1600 / 2000Gm | used (L) | metal base band |
1 | 12SK7-GT | $1.00 | Reliable | 110% | 2400 / 2000Gm | NOS (OB) | metal base band - metal band is split |