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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, Nuvistor, subminiature, metal, power, transmitter tubes and many more.
MDB Ventures Industrial, Ham Radio Transmitter and Power Tubes
Quantity
Available | Tube
Type | Price
Each | Tube
Brand | Emission
Strength | Mutual
Conductance |
Description |
Notes
|
| 1 | 5A6 | $10.00 | Tung-Sol | 120% | 3700/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 120% | 3600/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 120% | 3500/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 120% | 3200/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 110% | 3500/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 110% | 3200/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 110% | 3000/3000Gm | NOS (OB) | ---
| | 1 | 5A6 | $10.00 | Tung-Sol | 110% | 3000/3000Gm | NOS (OB) | ---
| | 1 | 6AR8 | $7.50 | Amperex | 130%/110% | 1400:1400/1400Gm | NOS (ob) | (M9) world logo
| | 1 | 6AR8 | $7.50 | Amperex | 110%/100% | 1600:1500/1400Gm | NOS (ob) | (M9) world logo
| | 1 | 6AR8 | $7.50 | GE | 150%/120% | 1800:1400/1400Gm | NOS (ob) | (M9) white lettering
| | 1 | 6AR8 | $7.50 | GE | 120%/130% | 1400:1700/1400Gm | NOS (ob) | (M9) white lettering - torn box flap
| | 1 | 6AR8 | $2.00 | GE | 70%/100% | 1200:1200/1400Gm | used fair (ob) | (M9) white lettering - torn box flap
| | 1 | 6AX8 | $5.00 | Tung-Sol | 120%/140% | 100/110dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | RCA | 110%/120% | 100/100dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | RCA | 100%/100% | 100/100dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | RCA | 100%/120% | 90/100dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | RCA | 110%/110% | 90/90dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | Sylvania | 110%/140% | 90/120dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | Sylvania | 100%/120% | 100/90dmc | NOS (OB) | ---
| | 1 | 6AX8 | $5.00 | Sylvania | 100%/130% | 90/100dmc | used (OB) | ---
| | 1 | 6AX8 | $1.00 | RCA | 110%/110% | 90/100dmc | used (OB) | ---
| | 1 | 6AX8 | $1.00 | Tung-Sol | 100%/90% | 90/100dmc | used (OB) | ---
| | 1 | 6BW4 | $5.00 | Sylvania | 110%/110% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Sylvania | 110%/110% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | ITT | 110%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | ITT | 115%/115% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | ITT | 115%/120% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white - torn box flap
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 115%/110% | --- | NOS (wb) | white
| | 1 | 6BW4 | $5.00 | Rauland | 115%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Delco | 115%/110% | --- | NOS (OB) | torn box flap
| | 1 | 6BW4 | $5.00 | RCA | 110%/110% | --- | NOS (wb) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 120%/110% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/115% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | RCA | 110%/115% | --- | NOS (OB) | red
| | 1 | 6BW4 | $5.00 | Sylvania | 110%/110% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Sylvania | 110%/115% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Sylvania | 110%/115% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Sylvania | 120%/110% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Sylvania | 105%/105% | --- | NOS (OB) | yellow
| | 1 | 6BW4 | $5.00 | Zenith | 110%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Philco | 115%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Philco | 110%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 115%/115% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | GE | 115%/115% | --- | NOS (OB) | white
| | 1 | 6BW4 | $5.00 | Rauland | 110%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Motorola | 110%/110% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Motorola | 110%/105% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $5.00 | Raytheon | 110%/105% | --- | NOS (OB) | ---
| | 1 | 6BW4 | $3.00 | Sylvania | 100%/110% | --- | used (rb) | green
| | 1 | 6BW4 | $3.00 | Sylvania | 110%/110% | --- | used (ob) | green
| | 1 | 6BW4 | $3.00 | Sylvania | 100%/100% | --- | used (rb) | green
| | 1 | 6BW4 | $3.00 | Westinghouse | 110%/110% | --- | used (rb) | ---
| | 1 | 6BW4 | $3.00 | EF Johnson | 110%/110% | --- | used (rb) | ---
| | 1 | 6BW4 | $3.00 | EF Johnson | 110%/110% | --- | used (rb) | ---
| | 1 | 6BW4 | $3.00 | EF Johnson | 110%/110% | --- | used (rb) | ---
| | 1 | 6BW4 | $3.00 | EF Johnson | 110%/110% | --- | used (rb) | ---
| | 1 | 6BW4 | $3.00 | Sylvania | 110%/110% | --- | used (L) | ---
| | 1 | 6BX6/EF80 | $2.50 | Amperex | 120% | 3300/3000Gm | NOS (OB) | ---
| | 1 | 6BX6/EF80 | $2.50 | Amperex | 110% | 3000/3000Gm | NOS (OB) | ---
| | 1 | 6BX6/EF80 | $2.00 | Zenith | 140% | 4100/3000Gm | NOS (OB) | solid plate
| | 1 | 6BX6/EF80 | $2.00 | Zenith | 140% | 40000/3000Gm | NOS (OB) | solid plate
| | 1 | 6BX6/EF80 | $2.00 | Raytheon | 140% | 3500/3000Gm | NOS (OB) | ---
| | 1 | 6BX6/EF80 | $2.00 | Matsushita | 140% | 3400/3000Gm | NOS (OB) | for Singer
| | 1 | 6BX6/EF80 | $1.00 | Matsushita | 140% | 3600/3000Gm | used (rb) | ---
| | 1 | 6BX6/EF80 | $1.00 | RFT | 120% | 3700/3000Gm | used (wb) | solid plate
| | 1 | 6BX6/EF80 | $1.00 | Packard Bell | 110% | 3200/3000Gm | used (rb) | ---
| | 1 | 6BX6/EF80 | $0.50 | Matsushita | 85% | 2600/3000Gm | used (wb) | ---
| | 1 | 6BX6/EF80 | $0.50 | Amperex | 75% | 3200/3000Gm | used (OB) | ---
| | 1 | 6BX6/EF80 | $1.00 | Packard Bell | 130% | 3400/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Sylvania | 120% | 3000/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Siemens | 120% | 3400/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Sylvania | 120% | 3000/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Brimar | 140% | 4000/3000Gm | used (L) | solid plate
| | 1 | 6BX6/EF80 | $1.00 | Matsushita | 120% | 3600/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Matsushita | 120% | 2500/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Matsushita | 110% | 3100/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $1.00 | Matsushita | 100% | 3000/3000Gm | used (L) | ---
| | 1 | 6BX6/EF80 | $0.50 | Amperex | 90% | 3000/3000Gm | used (L) | bugle boy
| | 1 | 6BX6/EF80 | $0.50 | Hytron | 75% | 2200/3000Gm | used (L) | ---
| | 1 | 6CM5 | $6.00 | Westinghouse | 110% | 100dmc | NOS (OB) | brown base
| | 1 | 6CT3 | $10.00 | Zenith | 110% | --- | NOS (OB) | ---
| | 1 | 6HR6 | $1.00 | Knight by RCA | 60% | 110dmc | used (L) | ---
| | 1 | 6HS6 | $20.00 | Amperex | 130% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 125% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 130% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 110% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 130% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 120% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | RCA | 120% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | Sylvania | 120% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | Sylvania | 120% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | Sylvania | 120% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | Sylvania | 120% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | Sylvania | 140% | 120dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | National Electronics | 130% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | National Electronics | 140% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | GE | 130% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | GE | 130% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $20.00 | GE | 125% | 100dmc | NOS (OB) | ---
| | 1 | 6HS6 | $18.00 | GE | 110% | 90dmc | NOS (OB) | ---
| | 1 | 6HS6 | $18.00 | GE | 110% | 90dmc | NOS (OB) | ---
| | 1 | 6HS6 | $18.00 | GE | 100% | 110dmc | NOS (OB) | ---
| | 1 | 6HS6 | $5.00 | GE | 130% | 110dmc | used (OB) | ---
| | 1 | 6HS6 | $5.00 | GE | 110% | 70dmc | used (OB) | ---
| | 1 | 6HS6 | $5.00 | GE | 130% | 110dmc | used (OB) | ---
| | 1 | 6HS6 | $5.00 | GE | 110% | 80dmc | used (OB) | ---
| | 1 | 6HS6 | $5.00 | Sylvania | 100% | 90dmc | used (OB) | ---
| | 1 | 6HS6 | $5.00 | Sylvania | 140% | 100dmc | used (OB) | ---
| | 1 | 6HS6 | $3.00 | RCA | 110% | 80dmc | used (L) | ---
| | 1 | 6HS6 | $3.00 | RCA | 120% | 80dmc | used (L) | ---
| | 1 | 6HS6 | $2.00 | RCA | 110% | 70dmc | used (L) | ---
| | 1 | 6HS6 | $1.00 | GE | 110% | 100dmc | used leaky (5M) (OB) | ---
| | 1 | 6HS6 | $1.00 | RCA | 120% | 100dmc | used leaky (5M) (rb) | ---
| | 1 | 6HS6 | $1.00 | RCA | 110% | 90dmc | used leaky (1M) (rb) | ---
| | 1 | 6HS6 | $1.00 | Sylvania | 110% | 90dmc | used leaky (5M) (OB) | ---
| | 1 | 6JK6 | $18.00 | RCA | 110% | 100dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | RCA | 130% | 100dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | RCA | 130% | 110dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | RCA | 120% | 90dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | RCA | 110% | 120dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | GE | 110% | 90dmc | NOS (OB) | ---
| | 1 | 6JK6 | $18.00 | GE | 110% | 90dmc | NOS (OB) | ---
| | 1 | 6JK6 | $7.50 | RCA | 100% | 70dmc | used (OB) | ---
| | 1 | 6JK6 | $7.50 | GE | 120% | 80dmc | used (OB) | ---
| | 1 | 6JK6 | $7.50 | unknown | 100% | 80dmc | used (rb) | ---
| | 1 | 6JK6 | $7.50 | Realistic | 70% | 90dmc | used (OB) | ---
| | 1 | 6KD8 | $5.00 | RCA | 110%/110% | 90/90dmc | NOS (OB) | ---
| | 1 | 6KD8 | $5.00 | Zenith | 130%/120% | 100/110dmc | NOS (OB) | ---
| | 1 | 6KD8 | $5.00 | Zenith | 110%/120% | 100/100dmc | NOS (OB) | ---
| | 1 | 6KD8/6U8A | $1.00 | Raytheon | 100%/110% | 80/100dmc | used (OB) | ---
| | 1 | 6KD8/6U8A | $1.00 | Raytheon | 70%/90% | 70/60dmc | used (OB) | ---
| | 1 | 6KD8 | $1.00 | RCA | 80%/70% | 60/60dmc | used (rb) | ---
| | 1 | 6AX8/6KD8/6U8A | $1.00 | Lindal | 80%/120% | 90/110dmc | used (OB) | 1/2 gray coat
| | 1 | 6KE8 | $5.00 | RCA | 120%/110% | 120/110dmc | NOS (OB) | ---
| | 1 | 6KE8 | $5.00 | RCA | 120%/110% | 110/100dmc | NOS (OB) | ---
| | 1 | 6KE8 | $5.00 | RCA | 110%/110% | 100/100dmc | NOS (OB) | ---
| | 1 | 6KE8 | $5.00 | RCA | 130%/110% | 120/100dmc | NOS (OB) | ---
| | 1 | 6KE8 | $5.00 | RCA | 120%/110% | 100/100dmc | NOS (OB) | ---
| | 1 | 6KE8 | $5.00 | RCA | 110%/110% | 120/110dmc | NOS (OB) | ---
| | 1 | 12BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 12BW4 | $5.00 | RCA | 110%/110% | --- | NOS (OB) | red
| | 1 | 12BW4 | $5.00 | GE | 110%/115% | --- | NOS (OB) | white
| | 1 | 12BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 12BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 12BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 12BW4 | $5.00 | GE | 110%/110% | --- | NOS (OB) | white
| | 1 | 12BW4 | $5.00 | Sylvania | 110%/110% | --- | NOS (OB) | yellow
| | 1 | 12BW4 | $5.00 | Sylvania | 110%/110% | --- | NOS (OB) | yellow
| | 1 | 12BW4 | $2.50 | GE | 105%/105% | --- | used (rb) | white
| | 1 | 12BW4 | $2.00 | ITT | 90%/100% | --- | used (rb) | ---
| | 1 | 12BW4 | $2.00 | ITT | 110%/110% | --- | used (rb) | ---
| | 1 | 12BW4 | $2.00 | EF Johnson by Sylvania | 110%/110% | --- | used (rb) | ---
| | 1 | 12CT3 | $5.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | RCA | 130% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | Sylvania | 115% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | Sylvania | 110% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $5.00 | Sylvania | 120% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $4.00 | ITT | 110% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $4.00 | ITT | 120% | --- | NOS (OB) | ---
| | 1 | 12CT3 | $2.00 | RCA | 120% | --- | used (L) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 115% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | RCA | 120% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | GE | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | GE | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Magnavox | 125% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Sylvania | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Sylvania | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Sylvania | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Raytheon | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $3.00 | Zenith | 110% | --- | NOS (OB) | ---
| | 1 | 17CT3 | $1.00 | RCA | 110% | --- | used (OB) | ---
| | 1 | 17CT3 | $0.50 | RCA | 90% | --- | used (rb) | ---
| | 1 | 17CT3 | $0.50 | unknown | 90% | --- | used (L) | ---
| | 1 | 17H3 | $3.00 | GE | 110% | --- | NOS (OB) | ---
| | 1 | 17H3 | $3.00 | GM/Delco | 110% | --- | NOS (OB) | ---
| | 1 | 17H3 | $3.00 | GM/Delco | 110% | --- | NOS (OB) | worn box
| | 1 | 17H3 | $1.50 | Sylvania | 110% | --- | used (OB) | ---
| | 1 | 26AQ8/UCC85 | $20.00 | Mullard | 115%/110% | 6500/6000:4000Gm | used (wb) | ---
| | 1 | 26AQ8/UCC85 | $20.00 | Mullard | 110%/120% | 5500/6000:4000Gm | used (wb) | Britain
| | 1 | 26FZ6 | $25.00 | RCA | 120% | 3400/3000Gm | NOS (OB) | ---
| | 1 | 26FZ6 | $25.00 | RCA | 120% | 3400/3000Gm | NOS (OB) | ---
| | 1 | 26FZ6 | $25.00 | RCA | 125% | 3600/3000Gm | NOS (OB) | ---
| | 1 | 26FZ6 | $15.00 | RCA | 140% | 3600/3000Gm | used (rb) | ---
| | 1 | 26FZ6 | $15.00 | RCA | 140% | 3400/3000Gm | used (OB) | ---
| | 1 | 26Z5W | $75.00 | Tung-Sol | 110%/110% | --- | NOS (OB) | ---
| | 1 | 26Z5W | $75.00 | Tung-Sol | 110%/110% | --- | NOS (OB) | ---
| | 1 | 26Z5W | $75.00 | Tung-Sol | 110%/110% | --- | NOS (OB) | ---
| | 1 | 26Z5W | $75.00 | Tung-Sol | 110%/110% | --- | NOS (OB) | ---
| | 1 | 26Z5W | $75.00 | Tung-Sol | 110%/110% | --- | NOS (OB) | torn box flap
| | 1 | 26Z5W | $35.00 | Tung-Sol | 110%/110% | --- | used (OB) | damaged box
| | 1 | 1851 | $5.00 | RCA | 110% | 5000/5000Gm | used (wb) | (M) metal tube - flat top with grid stud
| | 1 | 6216 | $2.50 | Raytheon | 110% | 9000/9000Gm | NOS (OB) | torn box flap
| | 1 | 6227 | $30.00 | Amperex PQ | 110% | 100dmc | NOS (OB) | gold pins
| | 1 | 7551 | $10.00 | RCA | 110% | 6250/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 125% | 7500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 100% | 6000/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 6000/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 7000/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 120% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 6250/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 110% | 6000/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 115% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 120% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 120% | 6250/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | RCA | 120% | 6500/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $10.00 | Motorola | 110% | 6250/5300Gm | NOS (OB) | red lettering
| | 1 | 7551 | $5.00 | RCA | 110% | 6000/5300Gm | used (OB) | red lettering
| | 1 | 7551 | $2.00 | unknown | 70% | 4500/5300Gm | used (rb) | ---
| | 1 | 7551 | $2.00 | RCA | 120% | 6500/5300Gm | used leaky (4M) (OB) | red lettering
| | 1 | 7551 | $1.50 | RCA | 110% | 5500/5300Gm | used leaky (1M) (OB) | red lettering
| | 1 | 7551 | $0.50 | RCA | 90% | 3500/5300Gm | used leaky (500K) (OB) | red lettering
| | 1 | 7558 | $12.00 | RCA | 130% | 6500/5300Gm | NOS (OB) | green lettering - JAN
| | 1 | 7558 | $12.00 | RCA | 130% | 6500/5300Gm | NOS (OB) | green lettering - JAN
| | 1 | 7558 | $12.00 | RCA | 130% | 7000/5300Gm | NOS (OB) | green lettering - JAN
| | 1 | 7558 | $12.00 | RCA | 120% | 6250/5300Gm | NOS (OB) | green lettering - JAN
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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, 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 Industrial, Ham Radio Transmitter and Power 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.
Contact MDB Ventures sales@mdbventures.com
Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.
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