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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 Collector Tubes
Qty
Avail
Tube
Type
Price
Each
Tube
Brand
Emission
Strength
Mutual
Conduct

Desc

Notes
1 1A5-GT / 1299 / VT185 $10.00 National Union 150% --- NOS (OB) Loctal 1299/VT185 tube on an adapter to convert it to a 1A5GT (this is an odd one from the WWII shortages period)
1 2K28 $5.00 Raytheon untested --- used (rb) JAN
1 3DHH13 $4.00 Sears untested --- used (rb) 8pin subminature tube in metal shell - like a tall Nuvistor
1 6 / 30L2 $5.00 unknown untested --- unknown (wb) ---
1 6 / 30L2 $5.00 Mazda untested --- unknown (wb) ---
1 6A5 $5.00 Sylvania 40% 2000 / 3000Gm used (L) dual plate - heater open in section #2
1 6AB7 / 1852 $2.50 GE 110% 4000 / 4500Gm used (rb) white lettering - metal - mismarked should be 1853
1 6AJ6 $5.00 RCA untested heater ok used (wb) metal power tube
1 6C5-MG $20.00 Arcturus Coronet 110% 2100 / 2000Gm used (L) old style shoulder top metal glass tube - 6C5MG and name stamped in metal - minor rust on tube
1 6CH6 / EL821 $15.00 Mullard untested --- NOS (wb) ---
1 6DS8 / ECH83 $7.50 Mullard --- 100 / 120dmc NOS (OB) ---
1 6DS8 / ECH83 $7.50 Ei 90% / 80% 80 / 100dmc used (OB) Yugoslavia
1 6F14 $5.00 Mazda untested --- used (rb) 8 pin mini - metal base
1 6F23 $8.00 Mazda untested --- NOS (OB) 9pin miniature
1 6F23 $10.00 Mazda untested --- NOS (OB) 9pin miniature - includes paper slip 'Bentley Acoustic Corporation'
1 6F23 $5.00 Mazda untested --- used (wb) 9pin miniature
1 6F23 $5.00 RFT untested --- used (wb) 9pin miniature
1 6F23 $7.50 Zaerix untested --- used (rb) 9pin miniature - includes paper slip 'Bentley Acoustic Corporation'
1 6F23 $7.50 Zaerix untested --- used (rb) 9pin miniature - includes paper slip 'Bentley Acoustic Corporation'
1 6F33 $8.00 Valve Electronic / ITT untested --- NOS (OB) 9pin mini
1 6K7-MG $20.00 Super Silvertone 90% 1500 / 1400Gm used leaky (L) old style tall metal glass tube - 6K7MG and Super Silvertone stamped in metal - good condition
1 6K7-MG $20.00 Triad 100% 1500 / 1400Gm used good (wb) old style tall metal glass tube - 6K7MG and Triad stamped in metal - minor rust on tube
1 6L7-MG $20.00 Super Silvertone 120% 850: 900 / 650Gm used good (wb) old style tall metal glass tube - 6L7MG stamped in metal - white super silvertone lettering - good condition
1 6LD20 $8.00 Mazda untested --- used (rb) 8pin mini - metal base - in Ediswan 6F15 box
1 6LD6 $10.00 Electrohome untested --- NOS (OB) ---
1 6N8 / EBF80 $7.50 Mullard 110% diodes: 110% / 110% 3000 / 2200Gm NOS (OB) Gt Britain
1 6N8 / EBF80 $7.50 Amperex 110% diodes: 120% / 120% 3600 / 2200Gm NOS (OB) Gt Britian
1 6N8 / EBF80 $7.50 Amperex 120% diodes: 110% / 110% 3500 / 2200Gm NOS (OB) Gt Britian
1 6N8 / EBF80 $7.50 Amperex 120% diodes: 120% / 120% 3500 / 2200Gm NOS (OB) Gt Britian
1 6N8 / EBF80 $7.50 Amperex 110% diodes: 120% / 120% 3500 / 2200Gm NOS (OB) Gt Britian - bugle boy
1 6P25 $25.00 Mazda / BVA untested heater ok used (GT) ---
1 6Z-P1 $15.00 NEC untested heater ok NOS (OB) 6pin - in original red/black Japanese box (cat:Col-1c)
1 10C1 $5.00 Mazda untested --- unknown (wb) ---
1 10F1 $7.50 Mazda Valve untested --- unknown (wb) 8pin mini - metal base
1 10F1 $7.50 Mazda Valve untested --- unknown (wb) 8pin mini - metal base
1 10F1 $7.50 Mazda Valve untested --- unknown (wb) 8pin mini - metal base
1 10F1 $7.50 Mazda Valve untested --- unknown (wb) 8pin mini - metal base
1 10LD11 $7.50 Mazda untested --- unknown (wb) 9pin miniature
1 10LD11 $7.50 Mazda untested --- used (rb) 9pin miniature - in '6202 Valve' box
1 12FK $25.00 NEC untested heater ok NOS (OB) 3pin - in original red/black Japanese box (cat:Col-1c)
1 13CM5 $5.00 Superior untested --- NOS (OB) brown base - France
1 25L6 $40.00 Toshiba (picture) 130% 11000 / 8000Gm NOS (OB) (GT) Tokyo Shibaura Electric Co.
1 30M-P27 $10.00 Matsushita untested --- NOS (OB) 7pin mini - in Japanese box
1 30P12 $10.00 Bently Accoustic Corporation untested --- NOS (OB) ---
1 30PL13 $3.00 Mazda untested --- used (rb) 9pin mini - in Solus box
1 34M $7.50 Rogers 90% --- used (wb) (ST) similar to 1D5 - paint shield
1 38A3 / UY85 $3.00 Mullard untested --- NOS (OB) ---
1 546 $5.00 GE untested thyratron NOS (OB) US Navy
1 935 $8.00 Beckman untested --- heater ok used
1 1236C $10.00 Superior Electric Company untested --- NOS (OB) loktal
1 1236C $10.00 Superior Electric Company untested --- NOS (OB) loktal
1 1236C $10.00 Superior Electric Company untested --- NOS (OB) loktal
1 1258 $5.00 Chatham untested --- NOS (OB) JAN
1 1258 $5.00 Chatham untested --- NOS (OB) JAN
1 VC1258 $5.00 Chatham untested --- NOS (OB) ---
1 1636 $2.50 RCA display --- used (L) tip broken - vacuum intact - display only
1 5608A $10.00 Wheelco Instrument Co untested heater ok Used (wb) capacitrol tube
1 5662 $5.00 GE untested --- NOS (OB) ---
1 5839 / TE-2 $2.00 Eclipse-Pioneer / Bendix 100% / 60% --- used (L) brown base - ruggedized (26V heater 6X5)
1 5839 / TE-2 $0.50 Eclipse-Pioneer / Bendix 100% / 40% --- used (L) brown base - ruggedized (26V heater 6X5)
1 5847 $10.00 Amperex untested --- NOS (OB) PQ - gold pins
1 5962 $7.50 EON Corp untested --- NOS (OB) ---
1 5962 $7.50 Anton Electronic Labs untested --- used (rb) ---
1 6094 $10.00 Bendix (Red Bank) no output gassy used (wb) Red Bank super heavy duty 6BQ5 - gold pins - for display
1 6476A $20.00 Sylvania --- --- NOS (OB) decatron tube
1 6476A $10.00 Sylvania --- --- used (L) decatron tube - unknown condition - neon gas will ionize inside the tube
1 CV2271 / GC10B / S $10.00 Ericsson Telephones Ltd --- --- used (L) decatron tube - unknown condition - neon gas will ionize inside the tube - England
1 7548 $5.00 CBS untested --- used? gold pins in box labeled Electromite
1 7687 $12.50 Stromberg Carlson --- 90 / 90dmc used (rb) ---
1 7699 $10.00 Amperex untested --- NOS (OB) for Tektronix
1 7851 $5.00 unknown untested --- used (rb) 12V Electromet? (marking on box)
1 7851 $5.00 unknown untested --- used (rb) 2.5V htr Electrometer? (marking on box)
1 8463 / YL1000 $10.00 Mullard untested --- NOS (OB) ---
1 8463 $10.00 Mullard 120% --- used (wb) gold pins - Gt Britain

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 Collector 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