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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, 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 6AX7 $10.00 Westinghouse 120% / 130% 1250: 1250 / 1250Gm used (OB) (M9) rectangular ribbed gray plates - top getter - japan
1 6AX7 $10.00 Westinghouse 140% / 140% 1400: 1300 / 1250Gm used (wb) (M9) square gray plates - top getter - usa
1 6AX7 $10.00 Westinghouse 140% / 140% 1650: 1550 / 1250Gm used (wb) (M9) square gray plates - top getter - usa
1 6EZ8 $4.00 GE 120% / 120% / 110% 100 / 100 / 90dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 130% / 135% / 140% 100 / 100 / 110dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 120% / 130% / 110% 90 / 100 / 90dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 120% / 140% / 120% 100 / 100 / 90dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 140% / 140% / 140% 110 / 110 / 110dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 120% / 120% / 130% 100 / 110 / 110dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 130% / 140% / 140% 90 / 100 / 120dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 120% / 130% / 140% 100 / 100 / 100dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 110% / 120% / 125% 100 / 100 / 110dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 GE 110% / 110% / 110% 90 / 90 / 90dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 GE 110% / 140% / 130% 100 / 100 / 100dmc NOS (OB) (M9) white lettering
1 6EZ8 $4.00 RCA 120% / 130% / 125% 90 / 100 / 90dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 100% / 110% / 120% 90 / 100 / 100dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 110% / 115% / 115% 90 / 100 / 100dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 120% / 120% / 120% 90 / 90 / 90dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 110% / 120% / 120% 90 / 90 / 90dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 110% / 110% / 110% 110 / 90 / 110dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 110% / 110% / 120% 100 / 90 / 90dmc NOS (OB) (M9) red lettering
1 6EZ8 $4.00 RCA 130% / 140% / 110% 100 / 90 / 90dmc NOS (OB) (M9) red lettering - torn box flap
1 6EZ8 $4.00 Philco 110% / 110% / 110% 90 / 90 / 90dmc NOS (OB) (M9) ---
1 6EZ8 $4.00 Sylvania 110% / 110% / 120% 100 / 90 / 100dmc NOS (OB) (M9) ---
1 6EZ8 $4.00 Sylvania 110% / 120% / 120% 100 / 110 / 100dmc NOS (OB) (M9) ---
1 6EZ8 $4.00 Sylvania 100% / 100% / 100% 100 / 100 / 100dmc NOS (OB) (M9) ---
1 6EZ8 $4.00 GM / Delco 120% / 120% / 130% 110 / 110 / 110dmc NOS (OB) (M9) ---
1 6EZ8 $4.00 ITT 140% / 120% / 140% 120 / 90 / 100dmc NOS (OB) (M9) ---
1 6EZ8 $3.00 Tung-Sol 150% / 140% / 140% 110 / 110 / 110dmc used (rb) (M9) ---
1 6EZ8 $2.00 Sylvania 140% / 140% / 130% 110 / 120 / 110dmc used (OB) (M9) yellow lettering
1 6EZ8 $2.00 RCA 110% / 140% / 140% 90 / 110 / 110dmc used (OB) (M9) red lettering
1 6EZ8 $2.00 GE 100% / 100% / 150% 110 / 110 / 120dmc used (OB) (M9) white lettering
1 6EZ8 $2.00 GE 130% / 140% / 140% 110 / 110 / 110dmc used (OB) (M9) white lettering
1 6EZ8 $1.00 GE 110% / 110% / 120% 100 / 80 / 90dmc used (OB) (M9) white lettering
1 6EZ8 $1.00 GE 140% / 120% / 120% 100 / 80 / 90dmc used (OB) (M9) white lettering
1 6EZ8 $1.00 GE 140% / 130% / 110% 100 / 100 / 90dmc used (OB) (M9) white lettering
1 6EZ8 $1.00 GE 110% / 110% / 120% 90 / 90 / 100dmc used (OB) (M9) white lettering
1 6EZ8 $1.00 GE 110% / 100% / 100% 90 / 90 / 80dmc used (rb) (M9) ---
1 6EZ8 $1.00 Raytheon 100% / 110% / 130% 80 / 80 / 110dmc used (OB) (M9) ---
1 6EZ8 $1.00 Raytheon 100% / 110% / 100% 80 / 80 / 80dmc used (OB) (M9) ---
1 6EZ8 $1.00 Sylvania 90% / 120% / 120% 90 / 100 / 100dmc used (OB) (M9) yellow lettering
1 6EZ8 $1.00 RCA 100% / 100% / 110% 80 / 80 / 80dmc used (OB) (M9) red lettering
1 6EZ8 $1.00 RCA 110% / 130% / 90% 90 / 100 / 80dmc used (OB) (M9) red lettering
1 6EZ8 $1.00 RCA 90% / 130% / 130% 90 / 100 / 110dmc used (OB) (M9) red lettering
1 6EZ8 $0.50 RCA 140% / 110% / 140% 110 / 70 / 120dmc used (OB) (M9) red lettering
1 12AD7 $24.00 NEC 120% / 120% 1500: 1500 / 1250Gm used (wb) (M9) rectangular smooth rectangular gray plates - low hum low microphonic 12AX7
1 12AD7 $20.00 NEC 115% / 115% 1300: 1300 / 1250Gm used (wb) (M9) rectangular smooth rectangular gray plates - Nippon Electric - low hum low microphonic 12AX7
1 12AD7 $18.00 NEC 100% / 120% 1150: 1300 / 1250Gm used (wb) (M9) rectangular smooth rectangular gray plates - low hum low microphonic 12AX7
1 12AD7 $18.00 NEC 105% / 110% 1150: 1200 / 1250Gm used (wb) (M9) rectangular smooth rectangular gray plates - Nippon Electric - low hum low microphonic 12AX7
1 12AD7 $18.00 NEC 100% / 115% 1050: 1200 / 1250Gm used (wb) (M9) rectangular smooth rectangular gray plates - Nippon Electric - low hum low microphonic 12AX7
1 5963 $5.00 RCA 115% / 120% 2900: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 110% 2850: 2850 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 115% / 120% 2900: 2900 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 110% 2600: 2600 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 115% / 120% 2850: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 110% 2700: 2700 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 3000: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 3000: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 115% / 130% 2700: 2800 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 120% 2700: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 115% / 120% 2750: 2950 / 2200Gm NOS (wb) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 115% / 125% 2900: 3100 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 2900: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 130% 2900: 3100 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7) US Navy
1 5963 $5.00 RCA 110% / 120% 2800: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed Gray plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 2800: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 3300: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 3000: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 115% 2800: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 110% / 110% 3000: 2800 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 120% 3000: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7) US Navy
1 5963 $5.00 RCA 110% / 120% 2800: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 RCA 120% / 125% 2800: 3200 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7) US Navy
1 5963 $5.00 Sylvania 110% / 110% 2700: 2600 / 2200Gm NOS (OB) (M9) square gray plates - green lettering (special 12AU7)
1 5963 $5.00 GE 125% / 110% 3300: 2900 / 2200Gm NOS (OB) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $5.00 GE 120% / 120% 3200: 3200 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 115% / 110% 3000: 2900 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 110% / 110% 3000: 2800 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 110% / 115% 2950: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 115% / 115% 2950: 2950 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 115% / 115% 2950: 2950 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 120% / 120% 3100: 3100 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 120% / 110% 2950: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 120% / 120% 3050: 3100 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 120% / 125% 3000: 3100 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 110% / 115% 2800: 2750 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 GE 110% / 120% 2800: 3000 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - white lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 120% 2900: 3000 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 125% 2900: 3100 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 120% / 110% 2900: 2600 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 120% 2900: 3000 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 120% / 120% 2900: 2700 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 120% / 110% 3000: 3000 / 2200Gm NOS (OB) (M9) square gray plates - yellow lettering (special 12AU7)
1 5963 $5.00 Sylvania 130% / 130% 3100: 3100 / 2200Gm NOS (wb) (M9) square gray plates - green lettering (special 12AU7)
1 5963 $5.00 Sylvania 120% / 120% 3000: 3000 / 2200Gm NOS (OB) (M9) square gray plates - green lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 130% 2900: 3100 / 2200Gm NOS (OB) (M9) square gray plates - green lettering (special 12AU7)
1 5963 $5.00 Sylvania 120% / 120% 3000: 3000 / 2200Gm NOS (OB) (M9) square gray plates - gold lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 110% 2900: 2900 / 2200Gm NOS (OB) (M9) square gray plates - gold lettering (special 12AU7)
1 5963 $5.00 Sylvania 100% / 110% 2600: 2700 / 2200Gm NOS (OB) (M9) square gray plates - gold lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 110% 2600: 2800 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - gold lettering (special 12AU7)
1 5963 $5.00 Sylvania 100% / 110% 2600: 2700 / 2200Gm NOS (OB) (M9) rectangular ribbed gray plates - gold lettering (special 12AU7)
1 5963 $5.00 Sylvania 110% / 110% 2850: 2900 / 2200Gm NOS (wb) (M9) JAN - square gray plates - green lettering (special 12AU7)
1 5963 $5.00 Sylvania 115% / 115% 2900: 3000 / 2200Gm NOS (wb) (M9) rectangular ribbed gray plates - green lettering (special 12AU7)
1 5963 $5.00 National Electronics 100% / 110% 2500: 2750 / 2200Gm NOS (OB) (M9) square gray plates (special 12AU7)
1 5963 $5.00 National Electronics 110% / 110% 2750: 2750 / 2200Gm NOS (OB) (M9) square gray plates (special 12AU7)
1 GB-5963 $5.00 Sylvania 110% / 120% 2600: 2800 / 2200Gm NOS (OB) (M9) square gray plates - gold lettering (special 12AU7)
1 5963 $4.00 Tung-Sol 110% / 120% 2850: 3000 / 2200Gm used (rb) (M9) gray plates (b11) (special 12AU7)
1 5963 $3.00 Beckman 110% / 110% 2700: 2700 / 2200Gm used (wb) (M9) rectangular ribbed gray plates (special 12AU7)
1 5963 $2.50 Paco Electronics 110% / 110% 2750: 2700 / 2200Gm used (rb) (M9) rectangular ribbed gray plates (special 12AU7)
1 5963 $2.50 RCA 115% / 115% 2800: 3000 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2700: 2800 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 115% / 120% 2800: 3200 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 120% 2800: 3000 / 2200Gm used (rb) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $2.50 RCA 120% / 120% 2800: 2800 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 115% / 120% 2800: 3000 / 2200Gm used (wb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2800: 2700 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 120% 2800: 3000 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2800: 3000 / 2200Gm used (rb) (M9) rectangular ribbed black plates - white lettering (special 12AU7)
1 5963 $2.50 RCA 110% / 120% 2100: 2200 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 120% / 120% 2300: 2300 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2150: 2150 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 115% / 110% 2150: 2100 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 120% / 120% 2200: 2200 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 120% / 125% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.50 RCA 120% / 120% 3000: 3000 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 RCA 110% / 120% 2800: 2900 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2650: 2650 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 RCA 110% / 115% 2650: 2750 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 RCA 120% / 110% 2900: 2700 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2650: 2800 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.50 RCA 110% / 120% 2700: 3000 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.50 RCA 110% / 110% 2500: 2550 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.50 RCA 120% / 125% 2250: 2400 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 110% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b1) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b1) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 110% 3000: 2900 / 2200Gm used (L) (M9) gray plates (b1) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 110% 3000: 2950 / 2200Gm used (L) (M9) gray plates (b1) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b1) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 130% / 130% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 110% 2600: 2950 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 120% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 130% / 120% 2900: 2950 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 115% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 115% 2800: 2950 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 110% 3000: 2900 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 110% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 105% / 110% 2750: 2800 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 105% / 110% 2850: 2900 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 120% 3000: 3100 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 120% / 120% 3000: 3100 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 115% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 110% 2900: 2800 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 110% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 110% 3850: 3000 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 110% / 110% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by RCA 105% / 105% 2700: 2650 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.00 Hewlett Packard by RCA 100% / 100% 2800: 2750 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.00 Hewlett Packard by RCA 100% / 130% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.00 Hewlett Packard by RCA 100% / 115% 2650: 2800 / 2200Gm used (L) (M9) gray plates (b5) (special 12AU7)
1 5963 $2.00 RCA 100% / 100% 2600: 2600 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.00 RCA 100% / 110% 2650: 2750 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.00 RCA 110% / 100% 2700: 2500 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $2.00 RCA 100% / 110% 2500: 2700 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.00 RCA 100% / 105% 2500: 2600 / 2200Gm used (rb) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.00 RCA 110% / 100% 2300: 2200 / 2200Gm used (L) (M9) black plates (b8) (special 12AU7)
1 5963 $2.00 RCA 105% / 110% 2500: 2700 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.00 RCA 100% / 100% 2400: 2500 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.00 RCA 100% / 100% 2200: 2350 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $2.00 RCA 100% / 120% 2400: 2800 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.00 RCA 120% / 100% 2800: 2500 / 2200Gm used (rb) (M9) gray plates (b9) (special 12AU7)
1 5963 $2.50 Sylvania 110% / 110% 2800: 2800 / 2200Gm used (wb) (M9) square gray plates - green lettering (special 12AU7)
1 GB-5963 $3.00 Sylvania 110% / 110% 2700: 2700 / 2200Gm used (wb) (M9) rectangular ribbed gray plates - gold lettering (special 12AU7)
1 5963 $2.50 Westinghouse 110% / 110% 3000: 3000 / 2200Gm used (wb) (M9) rectangular ribbed gray plates (special 12AU7)
1 5963 $2.00 Westinghouse 100% / 100% 2700: 2800 / 2200Gm used (rb) (M9) rectangular ribbed gray plates (special 12AU7)
1 5963 $2.50 Beckman 110% / 110% 2900: 2900 / 2200Gm used (rb) (M9) rectangular ribbed gray plates (special 12AU7)
1 5963 $2.00 unknown 120% / 100% 3000: 2800 / 2200Gm used (rb) (M9) rectangular ribbed black plates (special 12AU7)
1 5963 $1.00 RCA 110% / 90% 2600: 2500 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $1.00 RCA 90% / 120% 2400: 2600 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $1.00 RCA 120% / 90% 2750: 2600 / 2200Gm used (L) (M9) gray plates (b8) (special 12AU7)
1 5963 $1.00 RCA 110% / 90% 2600: 2200 / 2200Gm used (L) (M9) black plates (special 12AU7)
1 5963 $1.00 Hewlett Packard by RCA 90% / 130% 2700: 2900 / 2200Gm used (L) (M9) gray plates (b6) (special 12AU7)
1 5963 $2.50 Hewlett Packard by Toshiba 110% / 110% 2800: 2800 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.50 Hewlett Packard by Sylvania 110% / 115% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.50 Hewlett Packard by Sylvania 110% / 110% 2800: 2800 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.50 Hewlett Packard 105% / 105% 2650: 2550 / 2200Gm used (L) (M9) black plates (b7) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 110% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 110% 2800: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 120% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 120% 2850: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 120% 2800: 2850 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 120% 2800: 2900 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 120% / 110% 2800: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 120% 3000: 3050 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 105% / 120% 2750: 3000 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.50 Hewlett Packard 120% / 120% 3000: 3100 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 120% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 120% / 120% 3000: 3100 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 120% / 120% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 105% / 110% 2900: 2900 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 105% / 115% 2750: 2900 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 115% / 105% 2950: 2850 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 Hewlett Packard 110% / 105% 2750: 2800 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 115% 2700: 2850 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 110% 2800: 2550 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 110% 2500: 2650 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 100% 2300: 2400 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 105% 2500: 2450 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 100% 2500: 2500 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 100% 2600: 2600 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard 110% / 100% 2650: 2450 / 2200Gm used (L) (M9) gray plates (b2) (special 12AU7)
1 5963 $2.00 Hewlett Packard by Sylvania 100% / 100% 2600: 2700 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.00 Hewlett Packard by Sylvania 100% / 100% 2500: 2500 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.00 Hewlett Packard by Sylvania 100% / 110% 2700: 2800 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.00 Hewlett Packard by Sylvania 100% / 110% 2600: 2800 / 2200Gm used (L) (M9) gray plates (b7) (special 12AU7)
1 5963 $2.00 Hewlett Packard 100% / 110% 2750: 2750 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $1.00 Hewlett Packard 95% / 95% 2350: 2350 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $1.00 Hewlett Packard 90% / 110% 2350: 2550 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $1.00 Hewlett Packard 90% / 110% 2250: 2700 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $1.00 Hewlett Packard 90% / 110% 2200: 2500 / 2200Gm used (L) (M9) gray plates (b4) (special 12AU7)
1 5963 $2.50 GE 110% / 120% 2900: 3000 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 115% / 125% 2800: 3200 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 120% / 115% 3000: 2950 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 115% / 110% 2900: 2850 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 130% / 120% 3300: 3200 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 120% / 125% 3100: 3050 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 110% / 110% 2750: 2500 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 125% / 130% 2800: 2800 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 120% / 120% 3100: 3000 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 115% / 115% 3000: 3000 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 125% / 130% 3300: 3300 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 105% / 115% 2850: 2950 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $2.50 GE 120% / 125% 3100: 3200 / 2200Gm used (rb) (M9) gray plates (special 12AU7)
1 5963 $2.50 GE 120% / 125% 3100: 3200 / 2200Gm used (rb) (M9) gray plates (special 12AU7)
1 5963 $2.00 GE 100% / 115% 2750: 2950 / 2200Gm used (L) (M9) gray plates (b3) (special 12AU7)
1 5963 $3.00 GE 105% / 115% 2600: 2800 / 2200Gm used (L) (M9) gray plates - five star (b3) (special 12AU7)
1 5963 $2.50 GE 100% / 100% 2550: 2650 / 2200Gm used (L) (M9) gray plates - five star (b3) (special 12AU7)
1 5963 $2.00 RCA 110% / 100% 2800: 2500 / 2200Gm used (L) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $2.00 National 100% / 100% 2750: 2750 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $2.00 unknown 110% / 110% 2500: 2500 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $2.00 unknown 110% / 110% 2800: 2800 / 2200Gm used (L) (M9) rectangular ribbed black plates (special 12AU7)
1 5963 $1.00 RCA 90% / 90% 2100: 2100 / 2200Gm used (L) (M9) black plates (b20) (special 12AU7)
1 5963 $1.00 RCA 90% / 100% 2350: 2500 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $1.00 GE 90% / 120% 2700: 3000 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $1.00 Hewlett Packard by Sylvania 90% / 110% 2400: 2700 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $1.00 Hewlett Packard by Sylvania 90% / 115% 2350: 2850 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $1.00 Hewlett Packard by Sylvania 110% / 90% 2400: 2200 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $1.00 RCA 90% / 100% 2100: 2250 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $1.00 GE 95% / 100 2550: 2650 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $1.00 RCA 90% / 100% 2500: 2500 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $1.00 RCA 90% / 90% 2000: 2000 / 2200Gm used (L) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $1.00 RCA 90% / 110% 2800: 3000 / 2200Gm used (L) (M9) rectangular ribbed gray plates - red lettering (special 12AU7)
1 5963 $0.50 Honeywell 80% / 90% 2050: 2400 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5963 $0.50 RCA 85% / 115% 1700: 2000 / 2200Gm used (rb) (M9) black plates (b10) (special 12AU7)
1 5963 $0.50 Hewlett Packard by Sylvania 85% / 110% 2350: 2750 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $0.50 RCA 80% / 120% 2000: 2700 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $0.20 RCA 100% / 75% 2600: 1950 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $0.20 Honeywell 70% / 110% 2250: 2600 / 2200Gm used (L) (M9) gray plates (b20) (special 12AU7)
1 5963 $0.20 RCA 75% / 120% 1700: 2500 / 2200Gm used (L) (M9) gray plates (b21) (special 12AU7)
1 5964 $2.00 RCA 130% / 150% 5000: 4200 / 3000Gm NOS (OB) (M9) red lettering (special 6J6)
1 5964 $2.00 GE 120% / 120% 5000: 3000 / 3000Gm NOS (OB) (M9) white lettering (special 6J6)
1 5964 $2.00 GE 120% / 115% 3200: 3400 / 3000Gm NOS (OB) (M9) white lettering (special 6J6)
1 5964 $2.00 GE 140% / 120% 3800: 4800 / 3000Gm NOS (OB) (M9) white lettering (special 6J6)
1 5964 $2.00 GE 140% / 110% 3000: 3600 / 3000Gm NOS (OB) (M9) white lettering (special 6J6)
1 5964 $1.00 RCA 150% / 120% 5600: 4600 / 3000Gm used (OB) (M9) white lettering (special 6J6)
1 5964 $1.00 GE 140% / 150% 4000: 4200 / 3000Gm used (OB) (M9) white lettering (special 6J6)
1 5964 $1.00 unknown 130% / 150% 5000: 3800 / 3000Gm used (rb) (M9) (special 6J6)
1 ECC83 / 12AX7 $60.00 Telefunken 100% / 115% 1300: 1400 / 1250Gm used (wb) (M9) smooth gray plates - top halo getter - diamond base
1 ECC83 / 12AX7 $50.00 Telefunken 100% / 100% 1250: 1250 / 1250Gm used (wb) (M9) ribbed gray plates - top halo getter - diamond base - Germany
1 ECC83 / 12AX7 $35.00 Telefunken 90% / 110% 1000: 1250 / 1250Gm used (wb) (M9) ribbed gray plates - top halo getter - diamond base
1 ECC83 / 12AX7 $70.00 Mullard 130% / 140% 1200: 1250 / 1350Gm used (wb) (M9) rectangular ribbed gray plates - top halo getter
1 ECC83 / 12AX7 $70.00 Mullard 130% / 130% 1350: 1350 / 1350Gm used (wb) (M9) rectangular ribbed gray plates - top halo getter
1 ECC83 / 12AX7 $75.00 Amperex 140% / 140% 1400: 1400 / 1350Gm NOS (wb) (M9) rectangular ribbed gray plates - top halo getter - world logo
1 ECC83 / 12AX7 $75.00 Amperex 140% / 140% 1400: 1350 / 1350Gm NOS (wb) (M9) rectangular ribbed gray plates - top halo getter - world logo
1 ECC83 / 12AX7 $75.00 Amperex 140% / 140% 1350: 1350 / 1350Gm NOS (wb) (M9) rectangular ribbed gray plates - top halo getter - world logo
1 ECC83 / 12AX7 $40.00 Amperex 130% / 140% 1350: 1400 / 1350Gm used (wb) (M9) rectangular ribbed gray plates - top halo getter - world logo
1 12AX7A $40.00 Motorola 140% / 120% 1350: 1350 / 1250Gm NOS (OB) (M9) top halo getter - rectangular ribbed gray plates
1 12AX7 / ECC83 $35.00 Sovtek 120% / 135% 1200: 1250 / 1250Gm NOS (wb) (M9) gray plates - tripple mica
1 12AX7 / ECC83 $35.00 Sovtek 120% / 120% 1100: 1100 / 1250Gm NOS (wb) (M9) gray plates - tripple mica
1 12AX7 $18.00 Realistic 105% / 140% 1000: 1400 / 1250Gm used (rb) (M9) Sovtek - tripple mica
1 12AX7 $18.00 unknown (Sovtek) 120% / 120% 1500: 1500 / 1250Gm used (wb) (M9) tripple mica
1 12AX7 / ECC83 $18.00 unknown (Sovtek?) 130% / 140% 1250: 1450 / 1250Gm used (rb) (M9) tripple mica
1 12AX7 / ECC83 $18.00 unknown (Sovtek?) 140% / 135% 1450: 1350 / 1250Gm used (rb) (M9) tripple mica
1 12AX7 / ECC83 $18.00 unknown (Sovtek?) 130% / 140% 1500: 1650 / 1250Gm used (wb) (M9) tripple mica
1 12AX7 $18.00 unknown (Sovtek) 140% / 120% 1250: 1100 / 1250Gm used (rb) (M9) triple mica
1 12AX7 $15.00 GE 110% / 120% 1250: 1050 / 1250Gm used (rb) (M9) white lettering - top halo getter - rectangular ribbed gray plates
1 5751 / 12AX7 $40.00 Sylvania 120% / 140% 1250: 1350 / 1250Gm NOS (ob) (M9) JAN square gray plates - green lettering - halo getter
1 7025 / 12AX7WA $35.00 Sovtek 120% / 130% 1350: 1400 / 1250Gm NOS (wb) (M9) short gray plates - tripple mica
1 7025 / 12AX7WA $35.00 Sovtek 140% / 145% 1350: 1500 / 1250Gm NOS (wb) (M9) short gray plates - tripple mica
1 7025A / 12AX7A $30.00 NEC 140% / 140% 1400: 1650 / 1250Gm NOS (wb) (M9) gray plates - Japan
1 7025 / 12AX7 $18.00 Zenith 115% / 115% 1250: 1200 / 1250Gm used (wb) (M9) square gray plates - top halo getter - special 12AX7
1 7025 / 12AX7 $15.00 Fender 100% / 100% 1250: 1200 / 1250Gm used (wb) (M9) square gray plates - top halo getter - special 12AX7
1 7058 $40.00 RCA 140% / 110% 1500: 1300 / 1250Gm NOS (OB) (M9) rectangular ribbed gray plates - top halo getter - red lettering - special 12AX7
1 7058 $40.00 RCA 140% / 140% 1550: 1550 / 1250Gm NOS (OB) (M9) rectangular ribbed gray plates - top 'D' getter - red lettering - special 12AX7
1 7058 $35.00 Sylvania 150% / 150% 2100: 2250 / 1250Gm NOS (OB) (M9) square gray plates - top halo getter - yellow lettering - special 12AX7
1 12FV7 $12.00 RCA 120% / 125% 100 / 105dmc NOS (OB) (M9) red lettering
1 12FV7 $10.00 Delta 120% / 125% 110 / 115dmc NOS (OB) (M9) white lettering
1 5844 $4.00 GE 130% / 120% 4000: 3600 / 3000Gm NOS (wb) (M7) tall oval gray plates
1 5844 $4.00 GE 130% / 110% 3600: 3200 / 3000Gm NOS (OB) (M7) tall oval gray plates
1 5844 $4.00 GE 120% / 110% 3400: 3200 / 3000Gm NOS (OB) (M7) tall oval gray plates
1 5844 $5.00 Arcturus 110% / 120% 3200: 3400 / 3000Gm NOS (OB) (M7) tall ribbed black plates - tripple mica
1 5844 $5.00 Arcturus 120% / 110% 3200: 3100 / 3000Gm NOS (OB) (M7) tall ribbed black plates - tripple mica
1 5844 $5.00 Arcturus 110% / 110% 3100: 3200 / 3000Gm NOS (OB) (M7) tall ribbed gray plates - tripple mica
1 5844 $5.00 Honeywell untested sealed in original package NOS (OB) (M7) tall oval gray plates - made by GE for Honeywell(part # 115330 for C7012)
1 6211 $5.00 Hewlett Packard 110% / 110% 2600: 2650 / 2000Gm used (wb) (M9) black plates (improved 12AU7)
1 6211 $5.00 Hewlett Packard by RCA 110% / 110% 2750: 2800 / 000Gm used (L) (M9) black plates - tripple mica (improved 12AU7)
1 6211 $5.00 RCA 120% / 120% 2950: 2950 / 2000Gm used (L) (M9) gray plates (improved 12AU7)
1 6211 $5.00 RCA 110% / 120% 2700: 2900 / 2000Gm used (L) (M9) gray plates (improved 12AU7)
1 6211 $5.00 Sylvania 105% / 105% 2650: 2600 / 2000Gm used (L) (M9) black plates (improved 12AU7)
1 6211 $4.00 GE 100% / 120% 2300: 2500 / 2000Gm used (rb) (M9) rectangular gray plates (improved 12AU7)
1 6211 $1.00 GE 80% / 60% 2100: 2050 / 2000Gm used (rb) (M9) rectangular gray plates (improved 12AU7)
1 6350 $12.50 RCA 110% / 110% 5400: 5200 / 4500Gm NOS (OB) (M9) ribbed black plates - torn box flap
1 6939 $15.00 Amperex 115% / 130% --- NOS (OB) (M9) water damaged box
1 6939 $15.00 Amperex 135% / 140% --- NOS (OB) (M9)
1 6939 $15.00 Amperex 135% / 140% --- NOS (OB) (M9)
1 6939 $15.00 Amperex 135% / 130% --- NOS (OB) (M9)
1 6939 $15.00 Amperex 125% / 125% --- NOS (OB) (M9)
1 6939 $15.00 Western Union 110% / 120% --- NOS (OB) (M9)
1 6939 $15.00 RCA 110% / 130% 120 / 130dmc NOS (OB) (M9)
1 6939 $10.00 Amperex 120% / 130% --- used (rb) (M9)
1 6939 $10.00 Amperex 110% / 115% 120 / 120dmc Used (wb) (M9)
1 6939 $10.00 Amperex 110% / 100% --- used (wb) (M9)
1 6939 $10.00 Amperex 100% / 100% --- used (wb) (M9)
1 6939 $8.00 Westinghouse 120% / 110% 120 / 120dmc Used (wb) (M9)
1 6939 $8.00 Philips 110% / 100% 120 / 120dmc Used (wb) (M9)
1 6939 $5.00 Amperex 90% / 90% --- used (wb) (M9)
1 7898 $10.00 RCA 100% / 110% 4200: 4200 / 4000Gm NOS (OB) (M9) rectangular ribbed black plates - top getter - usa (13V 12AT7)
1 12FQ8 $8.00 RCA 120% / 150% / 120% / 150% --- NOS (OB) (M9) red lettering
1 12FQ8 $8.00 RCA 130% / 140% / 140% / 150% --- NOS (OB) (M9) red lettering
1 12FQ8 $8.00 Sylvania 120% / 140% / 140% / 130% --- NOS (OB) (M9) yellow lettering
1 12FQ8 $8.00 Amperex 120% / 150% / 150% / 140% --- NOS (OB) (M9) world logo
1 12FQ8 $4.00 RCA 130% / 150% / 125% / 150% --- used (ob) (M9) red lettering
1 12FQ8 $4.00 Wurlitzer by RCA 130% / 150% / 120% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 140% / 110% / 140% / 120% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 105% / 140% / 120% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 140% / 130% / 135% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 135% / 110% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 140% / 130% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 110% / 150% / 140% / 110% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 120% / 140% / 100% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 100% / 150% / 110% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 130% / 140% / 120% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 140% / 140% / 135% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 110% / 140% / 120% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 130% / 130% / 130% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 110% / 140% / 115% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 140% / 135% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 125% / 130% / 110% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 150% / 130% / 130% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 150% / 110% / 130% / 125% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 150% / 130% / 120% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 125% / 150% / 120% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 110% / 140% / 100% / 150% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 115% / 140% / 110% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 110% / 150% / 130% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 130% / 130% / 130% / 135% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 135% / 140% / 125% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 100% / 150% / 130% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 130% / 140% / 140% / 130% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 100% / 140% / 120% / 140% --- used (L) (M9) ---
1 12FQ8 $4.00 Wurlitzer by RCA 120% / 150% / 130% / 120% --- used (L) (M9) ---
1 17EW8 / HCC85 $5.00 RCA 100% / 120% 100 / 120dmc NOS (OB) (M9) smooth gray plates - britain
1 17EW8 / HCC85 $5.00 RCA 120% / 120% 120 / 110dmc NOS (OB) (M9) smooth gray plates - britain
1 17EW8 / HCC85 $5.00 RCA 120% / 120% 110 / 100dmc NOS (OB) (M9) smooth gray plates - britain
1 17EW8 / HCC85 $5.00 RCA 120% / 120% 100 / 110dmc NOS (OB) (M9) smooth gray plates - britain
1 17EW8 / HCC85 $5.00 RCA 110% / 110% 110 / 100dmc NOS (OB) (M9) smooth gray plates - holland
1 17EW8 / HCC85 $5.00 Sylvania 110% / 110% 100 / 100dmc NOS (OB) (M9) vertical ribbed gray plates - Germany
1 17EW8 / HCC85 $5.00 GE 110% / 120% 100 / 105dmc NOS (OB) (M9) vertical ribbed gray plates - Germany
1 17EW8 / HCC85 $5.00 Westinghouse 115% / 120% 100 / 110dmc NOS (OB) (M9) smooth gray plates - holland
1 17EW8 / HCC85 $5.00 Amperex 110% / 110% 120 / 120dmc NOS (OB) (M9) smooth gray plates - holland - Bugle boy
1 17EW8 / HCC85 $2.00 Hitachi 110% / 110% 100 / 110dmc used (L) (M9) smooth gray plates - japan
1 17EW8 / HCC85 $0.50 Matsushita 80% / 85% 60 / 60dmc used (L) (M9) smooth gray plates
1 17EW8 / HCC85 $0.50 Matsushita 90% / 90% 80 / 60dmc used (L) (M9) smooth gray plates

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