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Pentode Tubes

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Pentode Tubes
About the good old days of vacuum tubes in electronic current What is the situation?

That diode, pentode, TWT, magnetron, Klystron tetrode, tirode to dynatron, so ... Why are they doing? Use, they still do or gone into oblivion? It's just curious to know their fate. There's no one for me To provide information about their current situation? Or on the website Any links?

It was some time in my life I love to be the best, and then remains "to know John Appears to have reached the old "! Thermionic devices using Not useful yet. triodes, tetrodes, and the tubes where the high power pentodes Is required. If you need to generate 10 megawatts of kWatts or radio transmitter then how is that going to the thermionic device. Still broadband TWTs amplifiers satellite transponder, satellite earth stations Radar used to use a few applications. Magnetrons Of course, the microwave power source. They are reasonable The ability to produce efficient control of the output pulse power Can. Frequency stability is not an issue in the oven. Klystron high power amplifiers are widely used. It is from the TV transmitters, radar transmitters, some of which are in use. Used in satellite earth stations that have been replaced by the TWTs. I only have one piece of equipment used dynatron report will remember. They like a little version of the tunnel said thermionic diode. I am Sure they are very noisy by today's devices and I'll be able to use them longer unthinkable Can.

Check out the Pentode Tubes listings below and save 20% to 70% off retail prices:

RARE Military Russian Pentode Tubes Tube 12Zh1L 5pcs
RARE Military Russian Pentode Tubes Tube 12Zh1L 5pcs
$7.95
6K3  6SK7 RUSSIAN PENTODE TUBESLot of 8 NEW LOOK
6K3 6SK7 RUSSIAN PENTODE TUBESLot of 8 NEW LOOK
$29.00
6P15P EV EL83 SV83 pentode tubes Lot of 50 pcs NOS NIB
6P15P EV EL83 SV83 pentode tubes Lot of 50 pcs NOS NIB
$179.99
6P15P EV EL83 SV83 pentode tubes Lot of 4 pcs NOS NIB
6P15P EV EL83 SV83 pentode tubes Lot of 4 pcs NOS NIB
$13.00
6P15P EV EL83 SV83 pentode tubes Lot of 10 pcs NOS NIB
6P15P EV EL83 SV83 pentode tubes Lot of 10 pcs NOS NIB
$29.99
RARE Military Russian Pentode Tubes Tube 12Zh1L 25pcs
RARE Military Russian Pentode Tubes Tube 12Zh1L 25pcs
$19.95
Military Pentode tube TESLA EL803S Lot of 4
Military Pentode tube TESLA EL803S Lot of 4
$23.95
4x 6P14PEL8471896BQ5 Russian Audiophile Pentode Tubes Reflector NOS Tested
4x 6P14PEL8471896BQ5 Russian Audiophile Pentode Tubes Reflector NOS Tested
$22.00
2 Used Sylvania 7984 Compactron Beam Pentode Tube for RF Power Amp in Mobiles
2 Used Sylvania 7984 Compactron Beam Pentode Tube for RF Power Amp in Mobiles
$3.50
6AH6 Pentode Tubes Russian 6J5P Lot of 4
6AH6 Pentode Tubes Russian 6J5P Lot of 4
$6.50
6J10P ER Russian Tubes Pentode Lot of 50 pcs NOS NIB
6J10P ER Russian Tubes Pentode Lot of 50 pcs NOS NIB
$49.95
6SH7 Sharp Cutoff Pentode Tube Russian 6J3
6SH7 Sharp Cutoff Pentode Tube Russian 6J3
$3.85
4x GU 50LS 50P50FU 50 Russian Power Pentode Tubes NOS Tested
4x GU 50LS 50P50FU 50 Russian Power Pentode Tubes NOS Tested
$16.00
Svetlana 12J1L HF 200MHz Pentode Tubes Lot of 4
Svetlana 12J1L HF 200MHz Pentode Tubes Lot of 4
$9.70
Pentode 06P2B  XFW40 Tube lamp USSR Lot of 1pcs
Pentode 06P2B XFW40 Tube lamp USSR Lot of 1pcs
$12.60
Pentode 6V1P Tube lamp USSR Lot of 4 pcs
Pentode 6V1P Tube lamp USSR Lot of 4 pcs
$9.90
High frequency pentode 6J20P Tube lamp USSR Lot of 3 pcs
High frequency pentode 6J20P Tube lamp USSR Lot of 3 pcs
$9.00
6AH6 Pentode Tube Russian 6J5P
6AH6 Pentode Tube Russian 6J5P
$1.95
6AJ7 Pentode Tube
6AJ7 Pentode Tube
$2.85
4 Nos Valvo DAF91 Vacuum Tube 1S5 ZD17 1B2 1S5 1FD9 Diode Cut Off Pentode
4 Nos Valvo DAF91 Vacuum Tube 1S5 ZD17 1B2 1S5 1FD9 Diode Cut Off Pentode
$24.99
1 NOS rare GEC A2266 CV2231 PULSE PENTODE VACCUM TUBE VALVE
1 NOS rare GEC A2266 CV2231 PULSE PENTODE VACCUM TUBE VALVE
$17.99
Philips military JAN6AU6WC up to 10 miniature sharp cutoff pentode vacuum tube
Philips military JAN6AU6WC up to 10 miniature sharp cutoff pentode vacuum tube
$3.99
2x Siemens EL84 Output Pentode Vacuum Tube Penthode De Sorite Endpentode
2x Siemens EL84 Output Pentode Vacuum Tube Penthode De Sorite Endpentode
$59.95
2x ADZAM E80CF SQ Special Quality Triode Pentode Tube Gold Pins SAME CODES
2x ADZAM E80CF SQ Special Quality Triode Pentode Tube Gold Pins SAME CODES
$32.23
21pcs 1J29B V 1Zh29B V Small Miniature Tube HF Pentode NOS 1J29B Russia NOS
21pcs 1J29B V 1Zh29B V Small Miniature Tube HF Pentode NOS 1J29B Russia NOS
$12.12
6SK7 Metal Tube 6137 Remote Cutoff Pentode
6SK7 Metal Tube 6137 Remote Cutoff Pentode
$2.95
2 x 6P15P  EL83 RUSSIAN VACUUM PENTODE TUBES NOS MATCHED DATE CODE
2 x 6P15P EL83 RUSSIAN VACUUM PENTODE TUBES NOS MATCHED DATE CODE
$9.00
2 X GK 71 RS471 PENTODE GRAFITE PLATE 2 TUBES 1980
2 X GK 71 RS471 PENTODE GRAFITE PLATE 2 TUBES 1980
$42.00
1 X GU 81M HIGH POWER 750W 50MHz PENTODE HAM TRANSMITTING GENERATOR TUBE 1 PCS
1 X GU 81M HIGH POWER 750W 50MHz PENTODE HAM TRANSMITTING GENERATOR TUBE 1 PCS
$49.00
Brand New Bugera 555 24050 El84 Pentode Power Tube
Brand New Bugera 555 24050 El84 Pentode Power Tube
$34.07
REFLECTOR 8 pcs 6P14P EL84 7189 6BQ5 PENTODE TUBES NOS
REFLECTOR 8 pcs 6P14P EL84 7189 6BQ5 PENTODE TUBES NOS
$24.00
1 NOS 1957 British Military TUBE GEC A2266 CV2231 PULSE PENTODE VACCUM VALVE
1 NOS 1957 British Military TUBE GEC A2266 CV2231 PULSE PENTODE VACCUM VALVE
$19.99
RARE Vintage 40s TESLA EL3 Vacuum Pentode Power TUBE  3REP6 TEL3 6E6 VEL3
RARE Vintage 40s TESLA EL3 Vacuum Pentode Power TUBE 3REP6 TEL3 6E6 VEL3
$33.99
1J18B Russian miniature pentode Tubes New Lot of 100
1J18B Russian miniature pentode Tubes New Lot of 100
$79.00
3 X Russian 6J9P  E180  6688 PENTODE tubes PCS 3
3 X Russian 6J9P E180 6688 PENTODE tubes PCS 3
$4.00
50x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes 1960s Svetlana NOS NIB
50x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes 1960s Svetlana NOS NIB
$300.00
2 x TELEFUNKEN E80F Audio Vacuum Pentode Tube Gold Pin STRONG Test
2 x TELEFUNKEN E80F Audio Vacuum Pentode Tube Gold Pin STRONG Test
$34.99
PUROTRON 42  UZ 42  6Z P1 Vintage Vacuum Pentode Tube TESTED
PUROTRON 42 UZ 42 6Z P1 Vintage Vacuum Pentode Tube TESTED
$14.99
4 x ZAERIX ECF80 Vintage Triode Pentode Tubes NEW
4 x ZAERIX ECF80 Vintage Triode Pentode Tubes NEW
$14.99
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
$12.99
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
$9.99
2 x TELEFUNKEN E80CF Vintage Pentode Tubes DIAMOND NEW GOLD PINS
2 x TELEFUNKEN E80CF Vintage Pentode Tubes DIAMOND NEW GOLD PINS
$34.99
2 x TESLA EL84  6BQ5  6P15  CV2975  N709  6P14P Vacuum Pentode Tubes STRONG
2 x TESLA EL84 6BQ5 6P15 CV2975 N709 6P14P Vacuum Pentode Tubes STRONG
$19.99
2 x VALVO E80F MATCHED PAIR Audio Vacuum Pentode Tube Gold Pin Tested
2 x VALVO E80F MATCHED PAIR Audio Vacuum Pentode Tube Gold Pin Tested
$29.99
LOT 10 new tubes pentode tungsram 89  6F6 42
LOT 10 new tubes pentode tungsram 89 6F6 42
$89.00
1 new tube pentode tungsram 89  6F6 42
1 new tube pentode tungsram 89 6F6 42
$9.60
1x 6SK7 RFT Vacuum Pentode RF IF Stage TUBE  6k3 6k17b VT 117 CV1981
1x 6SK7 RFT Vacuum Pentode RF IF Stage TUBE 6k3 6k17b VT 117 CV1981
$4.72
4x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes Svetlana NOS Tested
4x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes Svetlana NOS Tested
$24.00
Lot of 4 6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
Lot of 4 6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
$5.00
Lot of 2 6P18P Pentode Output TUBE EL82 tube Saratov 1987
Lot of 2 6P18P Pentode Output TUBE EL82 tube Saratov 1987
$3.00
Lot of 10 6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
Lot of 10 6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
$12.00
Lot of 2 6R4P HF Double Pentode TUBES Vinitsa 1987
Lot of 2 6R4P HF Double Pentode TUBES Vinitsa 1987
$4.00
6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
6BY7 EF85 6K13P Soviet Pentode tubes Vinitsa 1988
$2.00
1J24B Russian miniature pentode Tubes New Lot 15
1J24B Russian miniature pentode Tubes New Lot 15
$15.00
Lamp tube 6R4P HF Double Pentode USSR Lot of 4 psc
Lamp tube 6R4P HF Double Pentode USSR Lot of 4 psc
$5.40
6GH8A Sylvania Triode Pentode Vacuum Tube
6GH8A Sylvania Triode Pentode Vacuum Tube
$5.00
2x Russian 6N6P Low Noise Pentode Vacuum Tube Made in USSR NEW NOS
2x Russian 6N6P Low Noise Pentode Vacuum Tube Made in USSR NEW NOS
$14.99
2x Svetlana 6J32P Low Noise Pentode Vacuum Tube Made in USSR NEW NOS
2x Svetlana 6J32P Low Noise Pentode Vacuum Tube Made in USSR NEW NOS
$10.99
2 X PL36 25E5 25F7 TUNGSRAM pentode tubes PCS 2
2 X PL36 25E5 25F7 TUNGSRAM pentode tubes PCS 2
$9.00
EF91 6AM6 PHILIPS PENTODE TUBE NOS in BOX
EF91 6AM6 PHILIPS PENTODE TUBE NOS in BOX
$7.73
6AK5  EF95 VHF Pentode tubes Russian 6J1P Lot of 5
6AK5 EF95 VHF Pentode tubes Russian 6J1P Lot of 5
$9.95
6AK5  EF95 VHF Pentode tubes Russian 6J1P
6AK5 EF95 VHF Pentode tubes Russian 6J1P
$2.25
4 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
4 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
$7.99
12 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
12 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
$19.99
6P15P ER USSR Pentode tubes equiv of EL83  SV83 Lot of 4
6P15P ER USSR Pentode tubes equiv of EL83 SV83 Lot of 4
$16.00
12pc 6J38P HF pentode tube USSR Military for audio NEW
12pc 6J38P HF pentode tube USSR Military for audio NEW
$19.00
6J9P  E180F  6688 Russian HF Pentode Tubes Lot of 40
6J9P E180F 6688 Russian HF Pentode Tubes Lot of 40
$29.00
1x New Nos CV5056 6U8 ECF82 Ediswan make made in UK Tested Amplitrex AT1000
1x New Nos CV5056 6U8 ECF82 Ediswan make made in UK Tested Amplitrex AT1000
$45.00
1x EBL21 Vintage TELAM Double Diode Pentode Power Output TUBE  EBL71  PDD2
1x EBL21 Vintage TELAM Double Diode Pentode Power Output TUBE EBL71 PDD2
$11.04
1J29B V Russian miniature pentode Tubes New Lot of 100
1J29B V Russian miniature pentode Tubes New Lot of 100
$99.00
2x 6B8 Double Diode Pentode RF IF Stage Controlling mu Tube
2x 6B8 Double Diode Pentode RF IF Stage Controlling mu Tube
$4.44
NOS NIB 100x C3m Siemens made in Germany Audio Tube
NOS NIB 100x C3m Siemens made in Germany Audio Tube
$2,000.00
1x Siemens F80U Radio Valve Pentode Vacuum Tube
1x Siemens F80U Radio Valve Pentode Vacuum Tube
$5.99
1matched pair NEW NOS 6J7G Sylvania Amplitrex AT1000 Audio Amplifier Tube
1matched pair NEW NOS 6J7G Sylvania Amplitrex AT1000 Audio Amplifier Tube
$145.00
1J37B Russian miniature pentode Tubes NOS Lot of 15
1J37B Russian miniature pentode Tubes NOS Lot of 15
$18.00
6K7 Pentode Tubes  VT86 CV1942 Svetlana 70s Set of 4
6K7 Pentode Tubes VT86 CV1942 Svetlana 70s Set of 4
$12.25
6J2B V HF pentode tubes Lot of 8 pc NOS
6J2B V HF pentode tubes Lot of 8 pc NOS
$8.00
1matched pair NEW NOS 6J7G GEC Amplitrex AT1000 Audio Amplifier Tube
1matched pair NEW NOS 6J7G GEC Amplitrex AT1000 Audio Amplifier Tube
$145.00
6J10B VR HF PENTODE  NOS subminiature tubes HIGH DURABLE Lot of 4
6J10B VR HF PENTODE NOS subminiature tubes HIGH DURABLE Lot of 4
$10.00
6J10P ER HF PENTODE tubes radiation proof made in USSR NOS Lot of 4
6J10P ER HF PENTODE tubes radiation proof made in USSR NOS Lot of 4
$9.00
6J1B V HF PENTODE tubes Soviet  NOS subminiature  Lot of 8
6J1B V HF PENTODE tubes Soviet NOS subminiature Lot of 8
$10.00
6J1P E HF PENTODE tubes Russian NOS Equiv of EF95 6F32 6AK7 Lot of 8
6J1P E HF PENTODE tubes Russian NOS Equiv of EF95 6F32 6AK7 Lot of 8
$10.00
6J1P V HF PENTODE tubes from USSR NOS  Equiv of EF95 6F32 6AK7 Lot of 4
6J1P V HF PENTODE tubes from USSR NOS Equiv of EF95 6F32 6AK7 Lot of 4
$10.00
6J21P HF PENTODE Soviet tubes NOS  Equiv of EF95 6F32 6AK7 Lot of 4
6J21P HF PENTODE Soviet tubes NOS Equiv of EF95 6F32 6AK7 Lot of 4
$10.00
6J23P High Frequency PENTODE tubes made in USSR NOS  Lot of 4
6J23P High Frequency PENTODE tubes made in USSR NOS Lot of 4
$10.00
6J2P HF PENTODE USSR tubes NOS  Equiv of 6AS6 5725 Lot of 8
6J2P HF PENTODE USSR tubes NOS Equiv of 6AS6 5725 Lot of 8
$8.00
6J32B HF PENTODE USSR tubes NOS subminiature case Lot of 4
6J32B HF PENTODE USSR tubes NOS subminiature case Lot of 4
$8.00
6J38P HF PENTODE tubes Made in Soviet UNION NOS  Lot of 4
6J38P HF PENTODE tubes Made in Soviet UNION NOS Lot of 4
$8.00
6J3P HF PENTODE tubes NOS  Equiv of EF96  6AG5 Lot of 4
6J3P HF PENTODE tubes NOS Equiv of EF96 6AG5 Lot of 4
$8.00
6J3P EV HF PENTODE USSR tubes NOS  Equiv of 6BC5 6AG5 EF96 Lot of 4
6J3P EV HF PENTODE USSR tubes NOS Equiv of 6BC5 6AG5 EF96 Lot of 4
$8.00
6J46B V HF PENTODE tubes NOS subminiature Lot of 4
6J46B V HF PENTODE tubes NOS subminiature Lot of 4
$10.00
6J49P DRU HF PENTODE tubes USSR ULTRA DURABLE GOLD PINS AND GRID Lot of 2
6J49P DRU HF PENTODE tubes USSR ULTRA DURABLE GOLD PINS AND GRID Lot of 2
$14.00
6J51P HF PENTODE tubes from USSR  NOS  Equiv of 6EJ7 EF184 Lot of 4
6J51P HF PENTODE tubes from USSR NOS Equiv of 6EJ7 EF184 Lot of 4
$8.00
6J5B V HF PENTODE tubes USSR  NOS subminiature case Lot of 4
6J5B V HF PENTODE tubes USSR NOS subminiature case Lot of 4
$9.00
6J8 HF PENTODE tubes NOS metal case  Equiv of 6SJ7 GT 5693 Lot of 4
6J8 HF PENTODE tubes NOS metal case Equiv of 6SJ7 GT 5693 Lot of 4
$9.00
6J9P E HF PENTODE Russian tubes NOS  Equiv of E180F E186F EF861 Lot of 4
6J9P E HF PENTODE Russian tubes NOS Equiv of E180F E186F EF861 Lot of 4
$10.00
6K7 Tube Russian Svetlana Pentode VT86 CV1942 70s
6K7 Tube Russian Svetlana Pentode VT86 CV1942 70s
$3.95
GU50 HAM Audiophile Output Pentode Tube
GU50 HAM Audiophile Output Pentode Tube
$6.95
2 x VALVO E80F Vintage Audio Vacuum Pentode Tube Gold Pin NOS
2 x VALVO E80F Vintage Audio Vacuum Pentode Tube Gold Pin NOS
$45.00


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