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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 Used in satellite earth stations that have been replaced by the TWTs.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:

Pentode 06P2B  XFW40 Tube lamp USSR Lot of 1pcs
Pentode 06P2B XFW40 Tube lamp USSR Lot of 1pcs
$14.00
Pentode 6V1P Tube lamp USSR Lot of 4 pcs
Pentode 6V1P Tube lamp USSR Lot of 4 pcs
$11.00
High frequency pentode 6J20P Tube lamp USSR Lot of 3 pcs
High frequency pentode 6J20P Tube lamp USSR Lot of 3 pcs
$10.00
6AF9  EFL200  6Y9 Double Pentode Tubes Lot of 4
6AF9 EFL200 6Y9 Double Pentode Tubes Lot of 4
$6.80
NOS Raytheon CK 534AX Sub miniature Pentode Tube for Portable Equipment N R
NOS Raytheon CK 534AX Sub miniature Pentode Tube for Portable Equipment N R
$3.50
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
$40.00
2 X GK 71 RS471 PENTODE GRAFITE PLATE 2 TUBES 1980
2 X GK 71 RS471 PENTODE GRAFITE PLATE 2 TUBES 1980
$42.00
2x Siemens EL84 Output Pentode Vacuum Tube Penthode De Sorite Endpentode
2x Siemens EL84 Output Pentode Vacuum Tube Penthode De Sorite Endpentode
$89.99
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
2 PCS GU 50  50 LS 50 AUDIOPHILE PENTODE TUBE IN ORIGINAL BOX MILITARY
2 PCS GU 50 50 LS 50 AUDIOPHILE PENTODE TUBE IN ORIGINAL BOX MILITARY
$10.00
8 PCS GU 50  50 LS 50 AUDIOPHILE PENTODE TUBE IN ORIGINAL BOX MILITARY
8 PCS GU 50 50 LS 50 AUDIOPHILE PENTODE TUBE IN ORIGINAL BOX MILITARY
$30.00
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes  NEW NOS SAME CODE
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes NEW NOS SAME CODE
$24.99
2 x MAZDA MEDIUM EL41 + SOCKET Vacuum Pentode Tubes Tested
2 x MAZDA MEDIUM EL41 + SOCKET Vacuum Pentode Tubes Tested
$9.99
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
Brand New Bugera 555 24050 El84 Pentode Power Tube
Brand New Bugera 555 24050 El84 Pentode Power Tube
$34.07
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
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
TELEFUNKEN LV1 Vintage WEHRMACHT Vacuum Pentode Tube + Socket
TELEFUNKEN LV1 Vintage WEHRMACHT Vacuum Pentode Tube + Socket
$9.99
TUNGSRAM HP4106  S434N  E447 Vintage Vacuum Pentode Tube
TUNGSRAM HP4106 S434N E447 Vintage Vacuum Pentode Tube
$9.99
TUNGSRAM UF9  MUF9 Vintage Vacuum Pentode Tube  NEW
TUNGSRAM UF9 MUF9 Vintage Vacuum Pentode Tube NEW
$14.99
3 X Russian 6J9P  E180  6688 PENTODE tubes PCS 3
3 X Russian 6J9P E180 6688 PENTODE tubes PCS 3
$4.00
6SK7 Metal Tube 6137 Remote Cutoff Pentode
6SK7 Metal Tube 6137 Remote Cutoff Pentode
$2.95
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
6AS6 5725 6F36 HF baby Pentode Tube Russian 6J2P
6AS6 5725 6F36 HF baby Pentode Tube Russian 6J2P
$1.00
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
$9.99
4x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes Svetlana NOS Tested
4x 4P1L4LS1RL24P6 Russian Direct Heated Pentode Tubes Svetlana NOS Tested
$24.00
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes  NEW NOS SAME CODE
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes NEW NOS SAME CODE
$29.99
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
4 x ZAERIX ECF80 Vintage Triode Pentode Tubes NEW
4 x ZAERIX ECF80 Vintage Triode Pentode Tubes NEW
$14.99
2 x PHILIPS SQ E80F Vintage Audio Vacuum Pentode Tube Gold Pin Tested
2 x PHILIPS SQ E80F Vintage Audio Vacuum Pentode Tube Gold Pin Tested
$19.99
2 x TELEFUNKEN E80CF Vintage Pentode Tubes DIAMOND NEW GOLD PINS SAME CODES
2 x TELEFUNKEN E80CF Vintage Pentode Tubes DIAMOND NEW GOLD PINS SAME CODES
$34.99
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
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
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
2 x NEW RFT UCL82 Vintage Triode Pentode Tubes NOS
$12.99
2 X Russian 1520 6J9P number tube for space  6688 PENTODE tubes PCS 2
2 X Russian 1520 6J9P number tube for space 6688 PENTODE tubes PCS 2
$13.00
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
$4.99
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
$6.00
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
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
MATCHED PAIR 2 x TELEFUNKEN E280F Vacuum Pentode Tubes Gold Pin STRONG
MATCHED PAIR 2 x TELEFUNKEN E280F Vacuum Pentode Tubes Gold Pin STRONG
$34.99
RARE  DARIO 4654 Vintage Vacuum Pentode Tube TESTED 60mA
RARE DARIO 4654 Vintage Vacuum Pentode Tube TESTED 60mA
$24.99
SIEMENS E282F Vintage Vacuum Pentode Tube UHF STRONG TESTED
SIEMENS E282F Vintage Vacuum Pentode Tube UHF STRONG TESTED
$14.99
RF Pentode with the cathode grid 6J22P 7W  200MHz
RF Pentode with the cathode grid 6J22P 7W 200MHz
$4.85
2 X PL36 25E5 25F7 TUNGSRAM pentode tubes PCS 2
2 X PL36 25E5 25F7 TUNGSRAM pentode tubes PCS 2
$9.00
GU50 HAM Audiophile Output Pentode Tube
GU50 HAM Audiophile Output Pentode Tube
$6.95
EF91 6AM6 PHILIPS PENTODE TUBE NOS in BOX
EF91 6AM6 PHILIPS PENTODE TUBE NOS in BOX
$7.73
6EH7  EF183 HF Pentode Tube 6K13P
6EH7 EF183 HF Pentode Tube 6K13P
$0.99
6J43P E Double Anode Pentode Tubes Halo getter 4pcs
6J43P E Double Anode Pentode Tubes Halo getter 4pcs
$7.90
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
12SG7 RF IF Pentode tube Russian 12K4 Vintage 1965
12SG7 RF IF Pentode tube Russian 12K4 Vintage 1965
$3.85
4pcs x 6J5B V 6ZH5B V Miniature Military HF Pentode Tube NEW
4pcs x 6J5B V 6ZH5B V Miniature Military HF Pentode Tube NEW
$10.00
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
1P24B V Russian miniature pentode Tubes New Lot 4pcs
1P24B V Russian miniature pentode Tubes New Lot 4pcs
$10.00
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
6J43P E Double Anode Pentode Tube Halo getter
6J43P E Double Anode Pentode Tube Halo getter
$2.15
2x 6B8 Double Diode Pentode RF IF Stage Controlling mu Tube
2x 6B8 Double Diode Pentode RF IF Stage Controlling mu Tube
$4.99
1x Siemens F80U Radio Valve Pentode Vacuum Tube
1x Siemens F80U Radio Valve Pentode Vacuum Tube
$6.99
NOS NIB 100x C3m Siemens made in Germany Audio Tube
NOS NIB 100x C3m Siemens made in Germany Audio Tube
$2,000.00
1J37B Russian miniature pentode Tubes NOS Lot of 15
1J37B Russian miniature pentode Tubes NOS Lot of 15
$18.00
6J2B V HF pentode tubes Lot of 8 pc NOS
6J2B V HF pentode tubes Lot of 8 pc NOS
$8.00
70 PCS 1J18B 118 RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
70 PCS 1J18B 118 RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
$44.00
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
2 x CEI EF800 Vintage Vacuum Pentode Tubes Tested with Gold Pins
2 x CEI EF800 Vintage Vacuum Pentode Tubes Tested with Gold Pins
$18.00
2 x TELEFUNKEN EF800 Vintage Vacuum Pentode Tubes Tested  Diamond
2 x TELEFUNKEN EF800 Vintage Vacuum Pentode Tubes Tested Diamond
$30.00
2 x SIEMENS EF80 Vintage Vacuum Pentode Tubes NEW
2 x SIEMENS EF80 Vintage Vacuum Pentode Tubes NEW
$12.00
RARE RUSSIAN MILITARY 6J4 6AC7 6AJ7 SUBMARINE PENTODE TUBE VALVE 1952y
RARE RUSSIAN MILITARY 6J4 6AC7 6AJ7 SUBMARINE PENTODE TUBE VALVE 1952y
$9.00
Soviet miniature HF PENTODE Tube 6Zh9G 10pcs
Soviet miniature HF PENTODE Tube 6Zh9G 10pcs
$19.95
Victoreen 7234 Vacuum Electron Pentode NOS Tube Radio
Victoreen 7234 Vacuum Electron Pentode NOS Tube Radio
$19.95
1J37B Russian miniature pentode Tubes NOS one or more
1J37B Russian miniature pentode Tubes NOS one or more
$1.00
2 x 6P18P  EL82 Output Pentode Audiophile Tubes NOS Reflektor Plant NOS USSR
2 x 6P18P EL82 Output Pentode Audiophile Tubes NOS Reflektor Plant NOS USSR
$13.00
1x GK 71 Russian 125W Power Pentode Generator Tube Graphite Plate NOS Tested
1x GK 71 Russian 125W Power Pentode Generator Tube Graphite Plate NOS Tested
$18.00
10pcs 1J29B V 1Zh29B V Small Miniature Tube HF Pentode NOS 1J29B
10pcs 1J29B V 1Zh29B V Small Miniature Tube HF Pentode NOS 1J29B
$6.66
1P24B V Russian miniature pentode Tubes New Lot 10
1P24B V Russian miniature pentode Tubes New Lot 10
$14.00
2J27P Russian Pentode 120Mhz Tube NIB
2J27P Russian Pentode 120Mhz Tube NIB
$2.17
Vintage 60s EF14 RFT Vacuum Pentode RF IF Stage TUBE + SOCKET
Vintage 60s EF14 RFT Vacuum Pentode RF IF Stage TUBE + SOCKET
$56.66
25 PCS 6J5B V 65  RUSIAN MINIATURE TUBE HF PENTODE MILITARY
25 PCS 6J5B V 65 RUSIAN MINIATURE TUBE HF PENTODE MILITARY
$24.00
70 PCS 1P24B V 1P24B RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
70 PCS 1P24B V 1P24B RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
$66.00
10 PCS 1P24B V 1P24B RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
10 PCS 1P24B V 1P24B RUSIAN MINIATURE TUBE HF PENTODE IN ORIGINAL BOX MILITARY
$12.00
70 PCS 1J29B V 1J29B RUSIAN MINIATURE TUBE HF PENTODE MILITARY IN ORIGINAL BOX
70 PCS 1J29B V 1J29B RUSIAN MINIATURE TUBE HF PENTODE MILITARY IN ORIGINAL BOX
$28.00
GU 81M High Power 750W 50MHz Pentode GU81M GU81 HAM Transmitting Generator Tube
GU 81M High Power 750W 50MHz Pentode GU81M GU81 HAM Transmitting Generator Tube
$49.00
JRC 3P41 Transmitting Tube Tetrode or Pentode
JRC 3P41 Transmitting Tube Tetrode or Pentode
$288.00
6EJ7 EF184 Pentode Russian 6J51P Tube
6EJ7 EF184 Pentode Russian 6J51P Tube
$1.85
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Metal envelope
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Metal envelope
$2.20
6AF9  EFL200  6Y9 Double Pentode Tube
6AF9 EFL200 6Y9 Double Pentode Tube
$1.80
6EJ7 EF184 Pentode Russian 6J51P Tubes Lot of 4
6EJ7 EF184 Pentode Russian 6J51P Tubes Lot of 4
$6.95
E180F  6688 Pentode Tube Russian 6J9P
E180F 6688 Pentode Tube Russian 6J9P
$2.00


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