Pentode Nos

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Pentode Nos

1J37B Russian miniature pentode Tubes NOS  Lot of 100 1J37B Russian miniature pentode Tubes NOS Lot of 100 Paypal US $112.00 17d 18h 25m
EL12n RFT NOS Vacuum Pentode Power Output TUBE / EL12 EL12n RFT NOS Vacuum Pentode Power Output TUBE / EL12 Paypal US $24.99 25d 1h 20m
6J8 = 6SJ7 HF Pentode Tube, METAL ENVELOPE, Novosibirsk, NOS, OTK, 1973, 16pc 6J8 = 6SJ7 HF Pentode Tube, METAL ENVELOPE, Novosibirsk, NOS, OTK, 1973, 16pc Paypal US $55.99 27d 1h 50m
NOS Military GK-71 250W directly heated Power Pentode for tube amplifier NOS Military GK-71 250W directly heated Power Pentode for tube amplifier Paypal US $19.50 21d 21h 11m
x8  6P30B Soviet miniature Output Pentode Tubes NOS x8 6P30B Soviet miniature Output Pentode Tubes NOS Paypal US $12.95 23d 12h 38m
EXPORT VERSION 6J51P (6Zh51P) = 6EJ7 = EF184 Pentode Tubes, NOS, OTK, SAME DATE EXPORT VERSION 6J51P (6Zh51P) = 6EJ7 = EF184 Pentode Tubes, NOS, OTK, SAME DATE Paypal US $39.99 25d 3h 30m
8 x GU50 / LS50 / GU-50 Audiophile Pentode NEW NOS #OX 8 x GU50 / LS50 / GU-50 Audiophile Pentode NEW NOS #OX Paypal US $24.95 27d 4h 21m
5 x CV2105 / DL70 / 6373 MULLARD MILITARY SUB MINI. PENTODE TUBES ~ NOS NIB 5 x CV2105 / DL70 / 6373 MULLARD MILITARY SUB MINI. PENTODE TUBES ~ NOS NIB Paypal 0 Bid US $14.99 19h 36m
4 x 6DX8 / ECL84 AVW RADIOTRON TRIODE PENTODE TUBES * NOS NIB * 4 x 6DX8 / ECL84 AVW RADIOTRON TRIODE PENTODE TUBES * NOS NIB * Paypal 0 Bid US $14.99 19h 36m
5 x CV2299 / DL73  MULLARD MILITARY SUB MINI. PENTODE TUBES ~ NOS NIB 5 x CV2299 / DL73 MULLARD MILITARY SUB MINI. PENTODE TUBES ~ NOS NIB Paypal 0 Bid US $14.99 19h 36m
4 x 7591 JJ TESLA  BEAM PENTODE TUBES * NOS NIB * MATCHED QUAD * 4 x 7591 JJ TESLA BEAM PENTODE TUBES * NOS NIB * MATCHED QUAD * Paypal 1 Bid US $49.99 19h 36m
EF80=6BX6=Z719=Z152=8D6=64SPT WF PENTODE VACUUM TUBE NOS Old stock VINTAGE QTY=1 EF80=6BX6=Z719=Z152=8D6=64SPT WF PENTODE VACUUM TUBE NOS Old stock VINTAGE QTY=1 Paypal 0 Bid US $3.99 1d 3h 47m
EL81=6CJ6 TESLA OUTPUT PENTODE TUBE NOS OLD STOCK VINTAGE QTY=3 EL81=6CJ6 TESLA OUTPUT PENTODE TUBE NOS OLD STOCK VINTAGE QTY=3 Paypal 0 Bid US $4.99 1d 3h 47m
 CK5889   ELECTROMETER  PENTODE   RAYTHEON  NOS/NIB CK5889 ELECTROMETER PENTODE RAYTHEON NOS/NIB Paypal US $12.00 26d 10h 31m
^ NOS NIB Tung-Sol type 47 power pentode radio tube,original box,tested great! ^ NOS NIB Tung-Sol type 47 power pentode radio tube,original box,tested great! Paypal 1 Bid US $9.99 1d 9h 55m
337A tube Western Electric NOS original box audio pentode 337A tube Western Electric NOS original box audio pentode Paypal 0 Bid US $69.99 1d 10h 39m
NOS TUBE 6K6GT RCA Power Pentode Amp / Pre-amp NOS TUBE 6K6GT RCA Power Pentode Amp / Pre-amp Paypal US $25.00 6d 14h 3m
PAIR 12BA6 Tube NOS TEN Kobe Japan Pentode HF93 CV1928 PAIR 12BA6 Tube NOS TEN Kobe Japan Pentode HF93 CV1928 Paypal US $15.00 13d 8h 50m
 GU50  tube Audiophile Pentode Lot of 4 NOS GU50 tube Audiophile Pentode Lot of 4 NOS Paypal 0 Bid US $12.00 1d 11h 14m
6J1P || EF95 || 6F32 Pentode Tubes 10 pcs, all- 1972 NEW NOS, TESTED 6J1P || EF95 || 6F32 Pentode Tubes 10 pcs, all- 1972 NEW NOS, TESTED Paypal US $10.00 23d 8h 18m
6J9P-E / E180F / 6688  HF pentode tube. NOS. Lot of 10. 6J9P-E / E180F / 6688 HF pentode tube. NOS. Lot of 10. Paypal US $9.00 23d 11h
1J29B Russian tiny HF pentode tube. NOS. Lot of 10 1J29B Russian tiny HF pentode tube. NOS. Lot of 10 Paypal US $8.00 23d 42m
EF37A  CV358 audio pentode tube Mullard NOS / NIB / FREE SHIPPING EF37A CV358 audio pentode tube Mullard NOS / NIB / FREE SHIPPING Paypal US $19.95 5d 4h 48m
5  RCA  6GH8A  Pentode / Triode Tubes ~ NOS  NIB 5 RCA 6GH8A Pentode / Triode Tubes ~ NOS NIB Paypal US $19.95 1d 16h 4m
1 NOS  Cunningham 12A7 Rectifier - Power Pentode 1 NOS Cunningham 12A7 Rectifier - Power Pentode Paypal US $19.95 1d 16h 4m
1 Amperex / Mullard 7643 E80CF Triode Pentode Tube  NOS 1 Amperex / Mullard 7643 E80CF Triode Pentode Tube NOS Paypal US $79.95 1d 16h 4m
1 Westinghouse 7734 6GE8 Triode Pentode Tube ~ NOS  NIB 1 Westinghouse 7734 6GE8 Triode Pentode Tube ~ NOS NIB Paypal US $29.95 1d 16h 4m
4 x 6BL8 / ECF80 TRIODE / PENTODE TUBES WEST GERMANY * NOS * 4 x 6BL8 / ECF80 TRIODE / PENTODE TUBES WEST GERMANY * NOS * Paypal US $15.99 10d 19h 23m
REGENT 3S4  PENTODE POWER AMPLIFIER NOS REGENT 3S4 PENTODE POWER AMPLIFIER NOS Paypal US $6.95 16d 20h 46m
8 NOS/NIB RUSSIAN HF PENTODE TUBES 6J1P-EV/EF95/6F32/6AK7 8 NOS/NIB RUSSIAN HF PENTODE TUBES 6J1P-EV/EF95/6F32/6AK7 Paypal US $10.00 10d 18h 39m
10 NOS RUSSIAN PENTODE TUBES (6P18P)/6DY5/EL82 10 NOS RUSSIAN PENTODE TUBES (6P18P)/6DY5/EL82 Paypal US $10.00 10d 18h 39m
10 NOS RUSSIAN SUBMINIATURE PENTODE 1J24B, TEN OR MORE! 10 NOS RUSSIAN SUBMINIATURE PENTODE 1J24B, TEN OR MORE! Paypal US $8.50 10d 18h 36m
10 NOS RUSSIAN PENTODE TUBES 6K13P/EF85/6BY7 10 NOS RUSSIAN PENTODE TUBES 6K13P/EF85/6BY7 Paypal US $5.50 10d 18h 36m
6BJ5 N78 Tube Emitron BVA Valve UK NOS NIB Pentode Power Output  6BJ5 N78 Tube Emitron BVA Valve UK NOS NIB Pentode Power Output Paypal US $15.00 7h 14m
USED (Looks NOS) RCA 6AC7/1852 Metal Sharp Cut-off Pentode Vacuum Tube #0571230 USED (Looks NOS) RCA 6AC7/1852 Metal Sharp Cut-off Pentode Vacuum Tube #0571230 Paypal US $5.50 2d 6h 57m
2 NOS 1960's RCA 1U5 Vacuum Tubes Pentode/Diodes for Zenith TransOceanic Radios 2 NOS 1960's RCA 1U5 Vacuum Tubes Pentode/Diodes for Zenith TransOceanic Radios Paypal 0 Bid US $9.99 2d 19h 50m
4 NOS WESTERN ELECTRIC 310A VACUUM RADIO TUBES TYPE 310-A VOLTAGE AMP PENTODE 4 NOS WESTERN ELECTRIC 310A VACUUM RADIO TUBES TYPE 310-A VOLTAGE AMP PENTODE Paypal US $1,399.99 28d 3h 34m
EAF801 TUNGSRAM  Tube NOS in BOX Diode-Pentode RF/IF EAF801 TUNGSRAM Tube NOS in BOX Diode-Pentode RF/IF Paypal US $5.94 14d 2h 21m
NOS NIB new 6CU5 power pentode vacuum tubes (replace 6EH5 6CA5 6AS5) $1 each NOS NIB new 6CU5 power pentode vacuum tubes (replace 6EH5 6CA5 6AS5) $1 each Paypal US $1.00 21d 15h 48m
1J37B Vintage Soviet miniature pentode NOS TUBE QTY=15 1J37B Vintage Soviet miniature pentode NOS TUBE QTY=15 Paypal 0 Bid US $8.88 3d 17h 22m
1J29B-V 1J29B Miniature Tiny HF Pentode NOS QTY=20 1J29B-V 1J29B Miniature Tiny HF Pentode NOS QTY=20 Paypal 0 Bid US $9.99 3d 17h 22m
4 NOS/NIB DUMONT 6HB6 Audio Amplifer HiFi Stereo Power Pentode Vacuum tubes 4 NOS/NIB DUMONT 6HB6 Audio Amplifer HiFi Stereo Power Pentode Vacuum tubes Paypal US $14.99 3d 17h 57m
1pc NOS Vintage Mullard ME1400 pentode tube cca EF37A  amplifier 1pc NOS Vintage Mullard ME1400 pentode tube cca EF37A amplifier Paypal US $13.00 29d 4h 32m
4 x GU50 / LS50 / GU-50 Audiophile Pentode NEW NOS 4 x GU50 / LS50 / GU-50 Audiophile Pentode NEW NOS Paypal US $14.75 12d 19h 33m
RCA 6U8 A 6GH8 Sub 6KD8 Triode / Pentode Set of 5 NOS Tubes RCA 6U8 A 6GH8 Sub 6KD8 Triode / Pentode Set of 5 NOS Tubes Paypal US $20.00 12d 10h 21m
 ZENITH 6HS8 NOS TWIN PENTODE LOT OF 5 ZENITH 6HS8 NOS TWIN PENTODE LOT OF 5 Paypal US $9.95 27d 14h 6m
1J37B Vintage Soviet miniature pentode NOS TUBE QTY=2 1J37B Vintage Soviet miniature pentode NOS TUBE QTY=2 Paypal US $1.33 20d 1h 47m
CV475 Subminiature Pentode  Tube NOS aka 5899 QTY 5 Lot CV475 Subminiature Pentode Tube NOS aka 5899 QTY 5 Lot Paypal US $4.00 19d 3h 11m
1J37B Vintage Soviet miniature pentode NOS TUBE QTY=10 1J37B Vintage Soviet miniature pentode NOS TUBE QTY=10 Paypal US $7.77 1d 1h 23m
NOS Military GU81M GU-81M GU81 GU-81 750W directly heated Power Pentode NOS Military GU81M GU-81M GU81 GU-81 750W directly heated Power Pentode Paypal US $36.00 14d 22h 44m
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Chameleon Labs TS-1 MKII Small Diaphragm Tube Microphone Chameleon Labs TS-1 MKII Small Diaphragm Tube Microphone
Sale Price: $599.00

The TS-1 MKII is a small diaphragm tube condenser microphone, unique in design, and versatile in application. Driven by newly designed vacuum tube electronics and utilizing a U.S. made MIL-Spec 5840 NOS tube, the TS-1 MKII provides an unmatched combination of sparkle and warmth without the overly bright sonic qualities of other leading pencil condensers. The power supply's unique adjustable Heater Voltage control customizes the tube to allow tailoring of the microphone to your tonal requirements. A precision voltage meter provides repeatability. Note: The Chameleon Labs TS-1 MKII now includes the TS1-L Large Diaphragm Capsule!

Tono 807 SE Personal Tube Integrated Amp Tono 807 SE Personal Tube Integrated Amp
List Price: $799.00

Single-ended tube Class A tube integrated stereo amp. Completely hand wired, point-to-point, premium sound components. Outstanding realism, warm tube sound, best buy for a hand made amp, no circuit boards, sturdy build quality. One year warranty on parts and chassis, 90 days on tubes. Perfect for three-dimensional, intimate and magical music listening using any source, CD, MP3 players, satellite radio, DVD sound. Should be used with sensitive speakers of at least 87 dBA/1 watt/meter. Beautiful sound, very detailed, clear, magical, three-dimensional and musical.


Pentode Nos

Do You Know Fire Mud Lamp Is The Grand Mother Of All Electronical Devices?

Do You Know Fire Mud Lamp Is The Grand Mother Of All Electronical Devices?
Because that is the first one of the sequence of modification and inventions. The lighting lamp is the grand mother of the all electronic devices because the first ever vegetable oil burning lamp which was a cup made from mud. To protect it from the wind it was covered with globe of glass having up and down holes, Some other modifications drew it up to the shape of lantern to use the kerocene oil. Various modification of the lamps with grids and glass globes of many structures were made. Humphery Davy invented a lamp for the mines covering the flame with the grid.
On other side the electricity was known to the human beings from early history in shape of thunders and in their myths they believe the thunder as goddes which named zeus inder and so many others. In islam the thunder is called Raad which is described as angel of god.
In 1600 century willim gilbert discovered static electric and the name of electricity was used by sir Thomas Brown (1605-1682). Steiphen Gray and charlis dufe told about the conductors non-conductors and the kinds of electricity i-e static and mobile. Benjmin Franklin  by flying a kite in to the charged clouds proved that also electricity.
After production of the electricity the human mind began to think about the relevance between fire and electric sparks which both give light and heat the basic need of them.The first struggle in this matter was done by German scientist Henrich Geissler (1814-1889) he discovered light can be produce in a vacuum globe when specific electric potential  is applied on the electrodes on both sides. In 1878 sir william crooks discovered that the light is basically particles.
And Thomas A Edison (1847-1931)  used the carbon filament in the vacuum globe.He was making this only for light   
When he was busy in experiments for the enhancement, unusually he felt a shock of electric current on the upper side of the incandescent lamp then he astonished because the bulb was dry, On Checking he found that there was a piece of naked wire which was left during manufacturing of glass globe by mistake. He did not ignored it and wrote it in his diary.
After this unusual he researched on it and discovered that electrons emits in the vacuum, which is space charge named Edison effect.
He constructed another bulb & fitted a metallic plate having distance from the filament, When gave positive charges to the plate the galvano meter indicated that the current flows only in one direction as flows in the crystal diode, so the valve diode was invented.
later on when a grid between the cathode and plate was installed the flows of the current was controlled the modification of the Fleming in 1904 rutted to the invention of a detector of E.M waves. Lee-de Forest made a triode valve in 1907 and in 1912 lee-de forest & edwin armstrong used this triode tube in oscillator circuit. In 1916 walterschotkey invented tetroted tube and in 1926 it was converted to pentode by Benginmin telegun.
After knowing all these principles of the electronics the scientists believed that if any other solid state thing can be used in place of this thermionic valve that might be those crystals of which the primarily diode valve was substitute. after various experiments in 1947 the germanium diode by fixing third electrode to it the first point contact transistor was invented by the willim Shokley,walterbrittian & john bordian which was the substitute of the valve.
Its output function was directly proportional to its input circuit like valve later on reverse functioning transistor was invented and thus by the problem of noise amplification was solved many types of transistors came in existence and to make the circuits smaller and smaller these were integrated in one body then on one chip. And by their logic of comparison the computer could be made so you can say that many other electronic devices and this computer before you is the grandson of the grandson of the mud lamp. Now you guess who will be the grand son of this computer.
As I know the grandson of its grandsons also because the live cells in the chips are trying to be used.

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