MDB Ventures Low Grade Tubes

MDB Ventures Home

Don't forget to visit our Discount Bargain Packs for more savings!

Type: 1A7 , 1D5 , 1E4 , 1E5 , 1E7 , 1F7 , 1G5 , 1H4 , 1N5 , 1P5 , 2A4 , 3D23 , 5R4 , 5V4 , 5W4 , 5Y3 , 6A8 , 6AB5/6N5 , 6AD6 , 6AD7 , 6AE5 , 6AE6 , 6AF5 , 6AF6 , 6AL7 , 6B4 , 6B6 , 6BR5/EM80 , 6C5 , 6C8 , 6D8 , 6E5 , 6EZ8 , 6F5 , 6F6 , 6FG6/EM84 , 6F8 , 6G6 , 6H6 , 6HU6/EM87 , 6N6 , 6N7 , 6SC7 , 6SL7 , 6SN7 , 6SU7 , 12A8 , 12AH7 , 12SL7 , 12SN7 , 1626 , 5517 , 6888 , 7355 , 7591 , EMM803


Save on low grade tubes!

Some tubes fail testing because they have a weak output, are leaky, or have a minor defect such as a missing cap. These tubes can still be usable to experimenters, as backup tubes, or in an undemanding service may still operate as well as a new tube. We offer them here at a reduced price.

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 Low Grade Tubes
Quantity
Available
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conductance

Description

Notes
1 1A7-G $2.50 RCA Victor 85%/65% 1100:300/900:275Gm Used fair (L) (TT) (cat:312:324)
1 1A7-G $0.50 RCA 5%/5% 50:0/900:275Gm Used weak (L) (TT)
1 1A7-G $0.50 Philco 40%/20% 600:50/900:275Gm Used weak (L) (TT)
1 1A7-G $2.50 Sylvania 70%/120% 1200:400/900:275Gm Used fair (L) (TT)
1 1D5-G $1.50 Wards Super Airline 40% 250/750Gm Used Weak (ST) (cat:C2)
1 1D5-GP $3.00 Hytron 60% 400/750Gm used fair (ST) (cat:C2)
1 1D5-GP $3.00 Sylvania 100% 700/750Gm used good (ST) broken locator pin (cat:C2)
1 1D5-GP $3.00 Wards Super Airline 50% 350/750Gm used weak (ST) (cat:C2)
1 1E4-G $7.50 Marconi 70% 1400/1400Gm Used fair (L) (TT) (cat:312:298 : C2)
1 1E5-G $2.50 National Union 70% 700/640Gm Used fair (L) (TT) engraved base (cat: C2)
1 1E7-G $2.50 Philco 100%/60% 1050:650/1150Gm Used fair (L) (TT) engraved base (cat:C2)
1 1E7-G $2.50 Super Silvertone 70%/70% 600:700/1150Gm Used fair (L) (TT) engraved base (cat:C2)
1 1F7-GV $1.00 Super Silvertone 110% diodes:50%/60% 700/650Gm used (L) (ST) (cat:C2)
1 1F7-GV $1.00 National Union 110% diodes:20%/20% 900/650Gm used (L) (ST) (cat:C2)
1 1F7-G $1.00 Hytron 130% diodes:90%/50% 550/650Gm used (L) (ST) (cat:C2)
1 1G5-G $0.50 Super Silvertone 5% 50/1500Gm Used weak (L) (G) (cat:C2)
1 1G5-G $0.50 RCA 5% 50/1500Gm Used weak (L) (G) (cat:C2)
1 1G5-G $0.50 Wards Super Airline 5% 50/1500Gm Used weak (L) (G) (cat:C2)
1 1G5-G $0.50 Wards Super Airline 25% 150/1500Gm Used weak (L) (G) (cat:C2)
1 1H4-G $2.50 Philco 65% 600/900Gm Used fair (L) (G) (cat:C2) engraved base
1 1H4-G $1.00 Philco 50% 400/900Gm Used weak (L) (G) (cat:C2) engraved base
1 1H4-G $0.50 Super Silvertone 20% 200/900Gm Used weak (L) (G) (cat:C2) engraved base
1 1H4-G $3.00 Super Silvertone 70% 700/900Gm Used fair (L) (G) (cat:C2) (pl)
1 1H4-G $4.00 Sylvania 75% 600/900Gm Used fair (L) (G) (cat:C2)
1 1N5-G $2.50 Westinghouse 60% 450/750Gm Used fair (L) (TT) (cat:312:298 : C2)
1 1N5-G $2.50 GE 60% 350/750Gm Used fair (L) (TT) (cat:312:303 : C2)
1 1N5-G $2.50 Sparton 75% 600/750Gm Used fair (L) (TT) (cat:C2)
1 1N5-G $2.50 Raytheon 70% 600/750Gm Used fair (L) (TT) (cat:C2)
1 1P5-G $4.00 Westinghouse 65% 350/575Gm used fair (L) (TT) (cat:C2)
1 1P5-M $2.00 Rogers dead display only used (L) (TT) (cat:L-C2) black paint shield on tube
1 2A4-G $1.50 Philco 90% --- used (L) (G) (cat:C2) broken locator pin
1 3D23 $1.00 Lewis Electronics no output heater ok (OB) display only
1 5R4-GY $4.00 RCA 100%/95% --- used (ST) white particles inside - brown base (cat:BC2)
1 5R4-GY $5.00 RCA 110%/110% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $5.00 RCA 110%/110% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $5.00 RCA 110%/110% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $5.00 RCA 110%/110% --- used (ST) broken locator pin - brown base (cat:BC2) JAN
1 5R4-GY $5.00 RCA 100%/100% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $5.00 RCA 100%/100% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $4.00 RCA 110%/110% --- used (ST) white particles inside - brown base (cat:BC2)
1 5R4-GY $1.50 RCA 40%/40% --- used weak (ST) brown base (cat:BC2)
1 5R4-GY $5.00 Ken-Rad 110%/105% --- used (ST) broken locator pin - brown base (cat:BC2)
1 5R4-GY $4.00 Ken-Rad 100%/105% --- used (ST) white particles inside - brown base (cat:BC2) JAN
1 5R4-GY $3.00 GE 65%/60% --- used fair (ST) brown base (cat:BC2)
1 5V4-G $4.00 National Union 50%/90% --- used weak (ST) (cat:BC2)
1 5V4-G $6.00 Sylvania 90%/75% --- used fair (ST) (cat:BC2)
1 5V4-G $5.00 Sylvania 70%/60% --- used fair (ST) (cat:BC2)
1 5V4-G $6.00 Ken-Rad 75%/90% --- used fair (ST) (cat:BC2)
1 5V4-GA $1.00 Hallicrfters 100%/70% --- used fair (L) (GT)
1 5W4-G $2.00 Super Silvertone 70%/70% --- used fair (ST) (cat:BC2)
1 5W4-G $1.50 Firestone Air Chief by Ken-Rad 65%/55% --- used weak (ST) (cat:BC2)
1 5Y3-G $6.00 National Union 75%/75% --- used fair (ST) (cat:BC2)
1 5Y3-G $6.00 Ken-Rad 55%/75% --- used weak (ST) (cat:BC2) engraved base
1 5Y3-G $1.00 Super Silvertone 35%/25% --- used weak (ST) (cat:BC2)
1 5Y3-G $7.50 Tung-Sol 70%/80% --- used fair (ST) (cat:BC2)
1 5Y3-G $1.00 RCA Victor 90%/40% --- used weak (ST) (cat:BC2)
1 6A8-G $1.50 Sylvania 65%/105% 600:250/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $4.00 Sylvania 60%/110% 650:450/1000:300Gm Used fair (L) (ST) (cat:401-132 - C2)
1 6A8-G $5.00 Sylvania 80%/130% 600:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 Sylvania 90%/130% 1250:650/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $5.00 Sylvania 110%/95% 1200:600/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $5.00 Sylvania 110%/95% 1250:500/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $1.00 Sylvania 50%/120% 600:200/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $0.50 Sylvania 10%/40% 200:200/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $4.00 Sylvania 130%/80% 1400:250/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $4.00 Sylvania 75%/135% 700:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 Sylvania 130%/105% 1600:600/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $2.50 Sylvania 60%/90% 650:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 Zenith 100%/110% 1200:400/1000:300Gm Used leaky (3M) (L) (ST) (cat:C2)
1 6A8-G $5.00 Zenith 105%/135% 1200:600/1000:300Gm Used leaky (3M) (L) (ST) (cat:C2)
1 6A8-G $3.00 Zenith 70%/100% 950:400/1000:300Gm Used leaky (3M) (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 Zenith 100%/80% 1300:400/1000:300Gm Used leaky (3M) (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 Zenith 95%/105% 1500:700/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $3.00 Zenith 80%/115% 1400:450/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $3.00 GM 120%/70% 1250:350/1000:300Gm Used leaky (5M) (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 GM 120/80% 1300:450/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $3.00 Gm 120%/90% 1450:450/1000:300Gm Used leaky (2M) (L) (ST) (cat:C2)
1 6A8-G $2.00 Delco 140%/90% 600:550/1000:300Gm Used leaky (300K) (L) (ST) (cat:C2)
1 6A8-G $4.00 Delco 65%/90% 750:250/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 Philco 100%/80% 1100:450/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $5.00 Philco 110%/80% 1500:450/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $0.50 Philco 35%/50% 350:150/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $0.50 Philco 40%/95% 500:250/1000:300Gm Used weak (L (ST) (cat:312-311 : C2)
1 6A8-G $4.00 Philco 101%/75% 1200:350/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $4.00 Philco 90%/75% 750:450/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $2.00 Philco 80%/50% 800:400/1000:300Gm Used weak (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 Philco 110%/100% 1000:500/1000:300Gm Used leaky (3M) (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 Philco 105%/75% 900:350/1000:300Gm Used fair (L) (ST) engraved base (cat:401-210 : C2)
1 6A8-G $3.00 National Union 75%/110% 1050:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $3.00 National Union 70%/80% 850:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $3.00 National Union 65%/105% 700:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $3.00 National Union 80%/80% 950:300/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 National Union 130%/110% 1150:700/1000:300Gm Used good (L) (ST) loose glass inside (cat:C2)
1 6A8-G $1.00 National Union 45%/90% 700:300/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $3.00 Ken-Rad 100%/105% 1650:450/1000:300Gm Used leaky (3M) (L) (ST) (cat:C2)
1 6A8-G $1.00 Ken-Rad 140%/75% 1400:400/1000:300Gm Used leaky (50K) (L) (ST) (cat:C2)
1 6A8-G $5.00 Ken-Rad 120%/80% 1200:350/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $3.00 Ken-Rad 110%/80% 1250:350/1000:300Gm Used leaky (200K) (L) (ST) (cat:C2)
1 6A8-G $3.00 Ken-Rad 115%/75% 1200:350/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $5.00 Ken-Rad 100%/80% 1200:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $2.00 Champion 75%/120% 1250:500/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $1.00 Champion 50%/130% 1050:450/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $1.00 Champion 30%/100% 650:350/1000:300Gm Used leaky (5M) (L) (ST) (cat:C2)
1 6A8-G $4.50 Wizard 140%/80% 1500:400/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $4.00 Arcturus 80%/75% 1000:300/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $1.00 GE 45%/50% 200:100/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $3.00 GE 70%/75% 950:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $2.50 Super Silvertone 90%/65% 1000:300/1000:300Gm Used fair (L) (ST) engraved base (cat:C2)
1 6A8-G $2.00 Super Silvertone 40%/90% 500:300/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $4.00 Super Silvertone 90%/60% 1050:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $5.00 RCA Victor 70%/80% 1000:300/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $4.00 RCA 100%/70% 950:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $3.00 RCA 110%/70% 1200:450/1000:300Gm Used leaky (400K) (L) (ST) (cat:C2)
1 6A8-G $0.50 RCA Victor 17%/50% 700:250/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $5.00 RCA 90%/80% 1000:300/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $1.50 Wards Super Airline 100%/100% 1200:450/1000:300Gm Used leaky (50K) (L) (ST) (cat:403-128 : C2)
1 6A8-G $0.50 Wards Super Airline 50%/40% 450:450/1000:300Gm Used leaky (100K) (L) (ST) (cat:C2)
1 6A8-G $0.50 Wards Super Airline 90%/80% 1250:400/1000:300Gm Used leaky (50K) (L) (ST) (cat:C2)
1 6A8-G $2.50 Wards Super Airline 120%/75% 1500:450/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $1.00 Wards Super Airline 90%/70% 1200:350/1000:300Gm Used leaky (50K) (L) (ST) (cat:C2)
1 6A8-G $2.00 Wards Super Airline 110%/75% 1100:300/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $1.00 Tung-Sol 50%/110% 600:400/1000:300Gm Used weak (L) (ST) (cat:C2)
1 6A8-G $1.00 Tung-Sol 60%/120% 900:450/1000:300Gm Used fair (L) (ST) (pl) (cat:C2)
1 6A8-G $2.00 Raytheon 70%/135% 750:350/1000:300Gm Used fair (L) (ST) (cat:C2)
1 6A8-G $1.00 Raytheon 45%/60% 650:300/1000:300Gm Used weak (L) (ST) engraved base (cat:C2)
1 6A8-G $2.00 Crosley by Ken-Rad 90%/70% 700:200/1000:300Gm Used fair (L) (ST) (cat:312-300 : C2)
1 6A8-G $1.00 Ken-Rad 115%/90% 1300:400/1000:300Gm Used leaky (2M) (L) (ST) engraved base (cat:C2)
1 6A8-GT $3.00 Raytheon 70%/130% 800:600/1000:300Gm Used fair (L) (GT) metal base (cat:C2)
1 6AB5/6N5 $8.00 RCA Victor no gain bright eye but no control used (GT) eye tube - damaged box
1 6AC5-G $2.00 Sylvania 120% 850/1000Gm Used leaky (2M) (L) (G) (cat:C2) gray coat
1 6AC5-G $5.00 Sparton 75% 700/1000Gm Used fair (L) (G) (cat:C2) clear glass
1 6AC5-G $5.00 Sparton 70% 700/1000Gm Used fair (L) (G) (cat:C2) clear glass
1 6AC5-G $1.00 Super Sivertone 30% 500/1000Gm Used weak (L) (G) (cat:C2) gray coat
1 6AC5-G $1.00 Ken-Rad 80% 1600/1000Gm Used leaky (100K) (L) (G) (cat:C2)
1 6AC5-G $2.00 RCA 95% 1000/1000Gm Used leaky (5M) (L) (G) (cat:C2) gray coat
1 6AC5-G $0.50 Zenith 10% 100/1000Gm Used weak (L) (G) (cat:C2) gray coat
1 6AC5-G $0.50 Zenith 10% 250/1000Gm Used weak (L) (G) (cat:C2) gray coat
1 6AC5-GT $0.50 RCA 120% 1250/1000Gm Used (L) (G) (cat:C2) smooth black plate - red lettering - clear glass - heater cathode short
1 6AC5-GT $2.50 Cunningham 70% 750/1000Gm Used fair (L) (G) (cat:C2) black coat
1 6AD6-G $5.00 Wards Super Airline 120% weak eye used (GT) eye tube - loose base
1 6AD7-G $2.00 Sylvania 110%/60% 2400:400/2000:380Gm Used Fair (ST) gray coat
1 6AD7-G $2.00 Raytheon 120%/60% 2600:300/2000:380Gm Used Fair (ST) gray coat
1 6AD7-G $0.50 RCA 115%/15% 2400:100/2000:380Gm Used Weak (ST) gray coat
1 6AE5-G $4.00 National Union 50% 500/1200Gm Used Weak (ST) ---
1 6AE6-G $1.00 Ken-Rad 30%/60% 300:600/750:850Gm Used Weak (ST) ---
1 6AE6-G $3.00 Ken-Rad 80%/100% 700:950/750:850Gm Used Fair (ST) ---
1 6AF5-G $4.00 Sylvania 75% 1050/1500Gm Used fair (ST) ---
1 6AF5-G $4.00 Super Silvertone 70% 1200/1500Gm Used fair (ST) ---
1 6AF6-G $5.00 Raytheon 50% weak eye used (GT) eye tube
1 6AF6-G $7.50 RCA 90% fair eye used (GT) eye tube
1 6AL7 $1.00 Ken-Rad 100% burn marks on target used (GT) eye tube - cat:403-175
1 6AL7 $1.00 Ken-Rad 140% burn marks on target used (GT) eye tube
1 6AL7 $1.00 GE 110% burn marks on target used (GT) eye tube
1 6AL7 $1.00 GE 110% burn marks on target used (GT) eye tube
1 6AL7 $1.00 Raytheon --- weak target used (GT) eye tube
1 6AL7 $1.00 Raytheon 150% burn marks on target used (GT) eye tube
1 6B4-G $7.50 Philco 30% 1800/3000Gm Used weak (L) (ST)
1 6B6-G $4.00 RCA 140% diodes:130%/130% 800/750Gm Used good (OB) (ST) cap missing - replacement provided (cat:C2)
1 6B6-G $5.00 Raytheon 130% diodes:120%/140% 800/750Gm NOS (OB) (ST) cap loose - sealed in box (cat:C2)
1 6B6-G $1.00 Zenith 60% diodes:130%/130% 300/750Gm Used weak (OB) (ST) engraved base (cat:C2)
1 6B6-G $2.50 Super Silvertone 80% diodes:120%/120% 400/750Gm Used fair (OB) (ST) (cat:C2)
1 6BR5/EM80 $0.50 Valvo 120% weak eye used (GT) eye tube
1 6BR5/EM80 $0.50 HH Scott 120% weak eye used (GT) eye tube
1 6C5-G $2.50 Cunningham 140% 2200/2000Gm Used Leaky (2M) (ST)
1 6C5-G $2.50 Super Silvertone 65% 1100/2000Gm Used Fair (ST) engraved base
1 6C8-G $1.50 Tung-Sol 100%/80% 1150:1000/1000Gm Used Fair (ST) black coat
1 6C8-G $2.00 RCA 110%/110% 1300:1300/1000Gm Used Fair (ST) broken locator pin
1 6C8-G $1.50 National Union 90%/80% 1000:900/1000Gm Used Fair (ST)
1 6C8-G $1.00 National Union 130%/125% 1500:1500/1000Gm Used Leaky (5M) ST
1 6C8-G/VT-163 $1.00 National Union 60%/95% 600:1000/1000Gm Used weak ST - JAN - clear glass
1 6C8-G $1.00 RCA 50%/50% 500:500/1000Gm Used weak ST - clear glass
1 6C8-G $1.00 Coronado 100%/110% 1150:1200/1000Gm Used leaky (5M) ST - clear glass
1 6C8-G $1.00 Sylvania 65%/100% 800:1100/1000Gm Used fair ST clear glass
1 6C8-G $0.75 National Union 50%/120% 700:1300/1000Gm Used weak ST clear glass
1 6D8-G $3.00 National Union 70%/150% 800:500/1000:240Gm Used Fair (ST)
1 6D8-G $3.00 Wards Super Airline 95%/110% 130:350/1000:240Gm Used Leaky (5M) (ST)
1 6D8-G $3.00 Sylvania 75%/150% 850:500/1000:240Gm Used Fair (ST) black coat
1 6D8-G $3.00 Firestone Air Chief 70%/90% 1300:300/1000:240Gm Used Fair (ST) black coat
1 6E5 $7.50 Marconi 80% weak eye used (ST) eye tube
1 6E5 $7.50 unknown 100% weak eye used (GT) eye tube - black tape on tube
1 6E5 $7.00 unknown 50% weak eye used (GT) eye tube - cat:401-95
1 6E5 $7.00 RCA 50% weak eye used (GT) eye tube - US Navy
1 6E5 $6.00 Sylvania 20% weak eye used (GT) eye tube - loose base
1 6EZ8 $0.50 GE 90%/80%/70% 60/60/60dmc used (rb) (M9) white lettering
1 6F5-G $7.00 Wizard 70% --- used Fair (ST) ---
1 6F5-G $3.00 Crosley by Ken-Rad 55% --- used Weak (ST) ---
1 6F5-G $5.00 Crosley by Ken-Rad 100% --- used Leaky (100K) (ST) ---
1 6F5-G $5.00 Zenith 60% --- used Fair (ST) cat:312-287
1 6F5-G $2.00 Wards Super Airline 35% --- used Weak (ST) ---
1 6F5-G $2.00 Zenith 30% --- Used Weak (ST)
1 6F5-G* $7.50 Zenith 75% 700/1000Gm Used Fair (ST) engraved base
1 6F5-G $5.00 Zenith 120% 1300/1000Gm Used Leaky (2M) (ST)
1 6F5-G $8.00 Zenith 80% 850/1000Gm Used Fair (ST) missing cap (replacement provided)
1 6F5-G $10.00 RCA 80% 800/1000Gm Used Fair (ST) broken locator pin
1 6F5-G $8.00 National Union70% --- Used Fair (ST) engraved base
1 6F5-G $8.00 GE 120% 1250/1000Gm Used Leaky (200K) (ST)
1 6F5-G $3.00 Sylvania 55% 600/1000Gm Used Weak (ST)
1 6F5-G $5.00 Sylvania 60% 700/1000Gm Used Fair (ST)
1 6F5-G $5.00 Tung-Sol 120% 1200/1000Gm Used Leaky (5M) (ST) engraved base
1 6F5-G $3.00 Super Silvertone 45% 500/1000Gm Used Weak (ST)
1 6F5-G $5.00 Westinghouse 140% 1450/1000GmUsed Leaky (100K) (ST)
1 6F6-G $5.00 Philco 60% 1500/2000Gm Used Leaky (2M) (ST) engraved base
1 6F6-G $8.00 Philco 85% 1850/2000Gm Used Leaky (150K) (ST) engraved base - ribbed black plate
1 6F6-G $5.00 Raytheon 60% 1500/2000Gm Used Fair (ST)
1 6F6-G $5.00 Firestone Air Chief 70% 1700/2000Gm Used Fair (ST)
1 6F6-GT $3.00 RCA 120% 2450/2000Gm Used Leaky (2M) (GT)
1 6F6-GT $2.50 National Union 55% 1400/2000Gm Used Weak (GT)
1 6F6-GT $2.00 Coronado 45% 800/2000Gm Used Weak (GT)
1 6F6 $2.00 Sylvania 100% 2100/2000Gm Used Leaky (500K) Metal tube
1 6F6 $2.50 RCA 80% 1800/2000Gm Used Fair Metal tube - minor rust on tube
1 6F6 $2.50 RCA 125% 2500/2000Gm unused Metal tube - minor rust on tube
1 6F8-G $0.50 National Union 20%/20% 200:200/2000Gm used (L) (ST) square plates - gray coat (cat:401-124 - G2)
1 6F8-G $0.50 RCA 30%/10% 600:150/2000Gm used (L) (ST) rectangular plate - clear glass (cat:g2)
1 6FG6/EM84 $0.50 unknown 20% weak eye used (GT) eye tube
1 6FG6/EM84 $0.50 Lorenz 40% weak eye used (GT) eye tube - burn marks on phospher
1 6FG6/EM84 $0.50 Lorenz 50% weak eye used (GT) eye tube
1 6G6-G $1.00 National Union 120% 2600:2100Gm used leaky (2M) (L) (ST) clear glass (cat:1g)
1 6G6-G $1.00 Hytron 70% 2200:2100Gm used (L) (ST) clear glass (cat:1g)
1 6G6-G $1.00 Ken-Rad 75% 2200:2100Gm used (L) (ST) black coat (cat:1g)
1 6G6-G $1.50 Tung-Sol 85% 2000:2100Gm used (L) (ST) clear glass (cat:1g)
1 6G6-G $0.50 Raytheon 110% 2750:2100Gm used (L) (ST) black coat - intermitent (cat:1g)
1 6G6-G $1.50 Wizard 80% 2100:2100Gm used (L) (ST) black coat (cat:1g)
1 6G6-G $1.50 RCA 85% 2200:2100Gm used (L) (ST) clear glass - (cat:401-421 - 1g)
1 6G6-G/VT-198A $1.00 RCA 65% 1750:2100Gm used (L) (ST) clear glass - JAN (cat:1g)
1 6H6-G $3.00 Super Silvertone 100%/80% --- Used fair (L) (ST) (cat:C2) (pl)
1 6H6-G $1.00 Tung-Sol 50%/100% --- Used weak (L) (ST) (cat:C2)
1 6H6-G $1.00 Tung-Sol 70%/50% --- Used weak (L) (ST) (cat:C2)
1 6H6-G $1.00 Tung-Sol 50%/70% --- Used weak (L) (ST) (cat:C2)
1 6H6-G $2.00 Tung-Sol 70%/70% --- Used fair (L) (ST) (cat:C2)
1 6H6-G $2.00 Tung-Sol 70%/120% --- Used fair (L) (ST) (cat:403-335 : C2)
1 6H6-G $2.00 Zenith 70%/100% --- Used fair (L) (ST) (cat:312-393 : C2) engraved base
1 6H6-G $1.00 Zenith 110%/50% --- Used weak (L) (ST) (cat:402-190 : C2) engraved base
1 6H6-G $1.00 Zenith 50%/40% --- Used leaky (1M) (L) (ST) (cat:C2) engraved base (pl)
1 6H6-G $2.00 Zenith 100%/150% --- Used leaky (300K) (L) (ST) (cat:C2) engraved base - black coat
1 6H6-G $2.00 Sylvania 70%/110% --- Used fair (L) (ST) (cat:401-212 : C2)
1 6H6-G $2.00 Sylvania 85%/70% --- Used fair (L) (ST) (cat:C2)
1 6H6-G $1.00 Philco 50%/130% --- Used weak (L) (ST) (cat:C2)
1 6H6-G $2.00 Super Silvertone 75%/90% --- Used fair (L) (ST) (cat:C2)
1 6H6-G $2.00 Super Silvertone 70%/100% --- Used weak (L) (ST) (cat:C2) engraved base
1 6H6-G $1.00 Super Silvertone 90%/50% --- Used weak (L) (ST) (cat:C2) engraved base (pl)
1 6H6-G $1.75 Sparton 60%/120% --- Used fair (L) (ST) (cat:C2)
1 6H6-G $0.50 Ceco 50%/20% --- Used weak (L) (ST) (cat:C2)
1 6H6-G $0.50 Ceco 30%/30% --- Used leaky (5M) (L) (ST) (cat:C2)
1 6H6-G $0.50 National Union 140%/20% --- Used weak (L) (ST) (cat:C2)
1 6H6-GT/G/VT90A $2.00 Sylvania 100%/120% --- Used (L) (GT) JAN
1 6H6-GT/G/VT90A $2.00 Sylvania 110%/110% --- Used (L) (GT) JAN
1 6H6-GT/G/VT90A $1.00 Sylvania 110%/120% --- Used (L) (GT) JAN - loose base
1 6H6-GT/G/VT90A $1.00 Sylvania 110%/110% --- Used (L) (GT) JAN - loose base
1 6HU6/EM87 $1.00 Philco 140% fair eye used (GT) eye tube - slight burn on phospher
1 6HU6/EM87 $1.00 Philco 120% fair eye used (GT) eye tube - slight burn on phospher
1 6HU6/EM87 $1.00 Philco 120% fair eye used (GT) eye tube - slight burn on phospher
1 6HU6/EM87 $0.50 Philco 90% weak eye used (GT) eye tube - burn marks on phospher
1 6N6-G $7.50 Philco 50% 1100/1300Gm Used Weak (ST)
1 6N6-G $7.50 Sylvania 100% 700/1300Gm Used Fair (ST)
1 6N6-G $10.00 Sylvania 60% 1200/1300Gm Used Fair (ST)
1 6N6-G $5.00 Sylvania 40% 1500/1300Gm Used Weak (ST) engraved base
1 6N6-G $12.50 Sylvania 130% 1800/1300Gm Used Good (ST) broken locator pin
1 6N6-G $10.00 Super Silvertone 60% 1100/1300Gm Used Fair (ST) engraved base - gray coat
1 6N6-G $12.50 National Union 100% 1600/1300Gm Used Fair (ST) broken locator pin
1 6N7-G $5.00 Sylvania 70%/70% 850:850/1500Gm Used Fair (ST) engraved base
1 6N7-G $3.00 Zenith 150%/140% 2250:2000/1500Gm Used Leaky (3M) (ST) engraved base
1 6N7-G $2.00 Zenith 100%/45% 1600:10/1500Gm Used Leaky (300K) (ST) engraved base
1 6N7-G $2.00 GM 90%/80% 1750:1550/1500Gm Used Fair (ST) engraved base
1 6N7-G $4.00 unknown 70% --- Used Fair (ST) cat:401-102
1 6N7-GT $2.50Tung-Sol 130%/120% 1650:1750/1500Gm Used Leaky (5M) (GT) broken locator pin
1 6N7 $2.00 GE 70%/70% 700:700/1500Gm Used Fair Metal tube
1 6N7 $1.50 RCA 60%/45% 600:500/1500Gm Used Weak Metal tube
1 6N7 $2.50 Raytheon 90%/75% 950:800/1500Gm Used Fair Metal tube
1 6N7 $2.50 Sylvania 110%/120% 1500:1500/1500Gm Used leaky (50K) Metal tube (cat:C2)
1 6N7 $2.50 US Navy 75%/80% 900:1000/1500Gm Used Fair Metal tube (cat:C2)
1 6N7-GT $2.50 RCA 40%/60% 450:650/1500Gm Used weak (GT) gray coat (cat:C2)
1 6N7-GT $2.50 RCA 90%/80% 1200:1450/1500Gm Used Fair (GT) JAN - gray coat (cat:C2)
1 6N7-GT $2.50 RCA 120%/120% 1600:1600/1500Gm Used leaky (3M) (GT) JAN - gray coat (cat:C2)
1 6N7-GT $2.50 RCA 70%/70% 800:900/1500Gm Used Fair (GT) gray coat (cat:C2)
1 6SC7GTY $2.00 Westinghouse 70%/90% 600:800/1000Gm Used Fair (GTY) brown base - pin 1 ground stap - black coat
1 6SL7GT $0.50 RCA 30%/20% 200:350/1250Gm Used Weak (GT) round black plates - gray coat
1 6SL7GT $0.50 RCA 40%/40% 600:500/1250Gm Used Weak (GT) gray coat
1 6SN7GT $1.00 RCA 75%/90% 1550:2000/2000Gm used (L) bottom getter - rectangular black plates - cat:402-260
1 6SN7GT $5.00 Hammond 120%/120% 2650:2750/2000Gm used (L) bottom getter - rectangular black plates - broken locator pin - cat:402-256
1 6SN7GTA/GTB $5.00 Crosley 110%/110% 2600:2650/2000Gm used (rb) top getter - square black plates - broken locator pin - cat:402-241
1 6SN7GT $1.00 Hoffman 150%/0% 2700:0/2000Gm used (L) bottom getter - rectangular black plates
1 6X5WGT $1.00 Raytheon 110%/110% --- Used leaky (5M) JAN - brown base
1 6SU7GTY $0.25 Tung-Sol 0%/105% --- Used Bad (GTY) brown base
1 12A8-G $0.50 Sylvnaia 30%/60% 350:200/1000:300Gm Used weak (L) (ST) (cat:C2)
1 12A8-G $1.00 Sylvania 50%/90% 650:250/1000:300Gm Used weak (L) (ST) (cat:C2)
1 12A8-G $1.50 Zenith 120%/70% 1650:500/1000:300Gm Used fair (L) (ST) (cat:C2) broken locator pin
1 12AH7GT $2.00 Ken-Rad 130%/130% 2600:2600/2000Gm used good (L) cat:403-329-2 broken locator pin
1 12AH7GT $1.00 RCA 115%/115% 2300:2300/2000Gm used leaky (L) cat:403-341-4
1 12AH7GT $1.00 RCA 90%/50% 1500:750/2000Gm used weak (L) cat:403-341-2
1 12AH7GT $1.00 RCA 90%/75% 1700:1500/2000Gm used fair (L) cat:403-330-2
1 12AH7GT $1.00 RCA 80%/100% 1500:1900/2000Gm used fair (L) cat:403-342-2
1 12AH7GT $1.00 RCA 80%/70% 1300:1200/2000Gm used fair (L) cat:403-341-7
1 12AH7GT $1.00 RCA 70%/100% 1000:1600/2000Gm used leaky (L) cat:403-341-6
1 12AH7GT $1.00 RCA 80%/80% 1350:1500/2000Gm used leaky (L) cat:403-341-3
1 12AH7GT/VT-207 $1.50 RCA 80%/100% 1850:2250/2000Gm used fair (L) bottom getter - round black plates
1 12SL7GT $2.00 RCA 90%/80% 1200:1150/1250Gm used (L) cat:403-327-3
1 12SL7GT $2.00 RCA 80%/90% 1300:1500/1250Gm used (L) cat:403-327-2
1 12SL7GT $1.50 RCA 70%/90% 1300:1150/1250Gm used (L) cat:403-327-6 loose base
1 12SL7GT $1.50 Western Union 90%/70% 700:700/1250Gm used (L) Chrome top - top getter - round black plates
1 12SL7GT/VT-289 $2.50 Sylvania 110%/110% 1200:1200/250Gm used (L) bottom getter - round black plates - cracked base - JAN
1 12SL7GT $0.50 GE 40%/65% 500:900/1250Gm used weak (L) side getter - round silver plates
1 12SL7GT $2.00 RCA 110%/110% 1350:1350/1250Gm used Leaky (L) gray coat
1 12SN7GT $2.50 GE 85%/85% --- Used (L) (GT) bottom getter - rectangular black plates
1 12SN7GT $2.50 GE 90%/80% 2100/1900Gm Used (L) (GT) side getter - rectangular gray plates
1 12SN7GT $2.00 Raytheon 90%/70% 1600:1450/2000Gm Used (L) (GT) bottom getter - rectangular black plates - grid 'c' clips
1 12SN7GT $2.50 Sylvania 80%/100% 2150:2350/2000Gm Used (L) (GT) top getter - square black plates - yellow lettering
1 1626/VT-137 $1.00 RCA 110% 2300/2100Gm used leaky (5M)(L) US Army - brown base - grid clip (cat:401-561)
1 1626/VT-137 $1.00 RCA 110% 2250/2100Gm Used Leaky (2M) (ST) brown base - grid clip
1 1626/VT-137 $1.00 RCA 120% 2350/2100Gm Used Leaky (750K) (ST) brown base - grid clip
1 5517 $0.50 Raytheon dead no vacuum --- (OB) (M9) display only
1 6888 $0.50 Sylvania 50% --- Used weak USAF - metal base
1 6888 $0.25 Sylvania 25% --- Used weak USAF - metal base
1 6888 $0.40 Sylvania 40% --- Used leaky (5M) USAF - metal base
1 7355 $0.50 Harmon Kardon30% 2300/5000Gm Used Weak (GT)
1 7355 $0.50 Bogen 20% 1100/5000Gm Used Weak (GT)
1 7355 $1.00 Bogen 50% 3300/5000Gm Used Weak (GT)
1 7591 $5.00 GE 90% --- Used Leaky (GT)
1 7591 $5.00 GE 70% --- used fair (L) ---
1 7591 $5.00 Sylvania 85% --- used good (L) ---
1 7591 $0.50 RCA 120% --- used (L) heater cathode short - brown base
1 EMM803 $0.50 Lorenz untested --- used (GT) eye tube - slight burn marks on phospher
Notes: ST=ST Style, GT=GT Style, GL=Globe/Balloon Style, MT=Metal Style,
MN=Miniature(7/9pin) Style, SM=Subminature Style
EN=Engraved Base, CB=Cracked Base, LB=Loose Base, LC=Loose Cap, MC=Missing Cap, 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
(Gm = measured/baseline, measured1:measured2/baseline, measured1:measured2/baseline1:baseline2).
DMC = Mutual conductance measured on B&K 747 tube tester.
(DMC<55:weak, DMC55<>65:fair, DMC>65:good, DMC>40=diode good).


Purchasing our bargain bin 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


We cannot guarantee our Bargain Bin tubes. All sales of our Bargain Bin tubes are final.

Due to the highly volatile nature of the tube business, all Prices are subject to change without notice.


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