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 Used in satellite earth stations that have been replaced by the TWTs.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

6SK7 Metal Tube 6137 Remote Cutoff Pentode
6SK7 Metal Tube 6137 Remote Cutoff Pentode
$2.95
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
6K4P EV  EF93  6BA6  W727 PENTODE TUBE LOT OF 10
6K4P EV EF93 6BA6 W727 PENTODE TUBE LOT OF 10
$16.00
2J27P Russian Pentode 120Mhz Tube NIB
2J27P Russian Pentode 120Mhz Tube NIB
$2.17
6AH6 Pentode Tubes Russian 6J5P Lot of 2
6AH6 Pentode Tubes Russian 6J5P Lot of 2
$3.40
6P43P E EL86 EL84 Pentode Tubes NOS Tested Reflector LOT of 8pcs
6P43P E EL86 EL84 Pentode Tubes NOS Tested Reflector LOT of 8pcs
$19.90
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Metal envelope
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Metal envelope
$2.20
6J43P E Pentode Tubes NOS Tested Reflektor LOT of 8pcs
6J43P E Pentode Tubes NOS Tested Reflektor LOT of 8pcs
$9.49
6AF9  EFL200  6Y9 Double Pentode Tube
6AF9 EFL200 6Y9 Double Pentode Tube
$1.80
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
$39.00
6EJ7 EF184 Pentode Russian 6J51P Tubes Lot of 4
6EJ7 EF184 Pentode Russian 6J51P Tubes Lot of 4
$6.95
JRC 3P41 Transmitting Tube Tetrode or Pentode
JRC 3P41 Transmitting Tube Tetrode or Pentode
$288.00
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NOS  EBL71  PDD2
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NOS EBL71 PDD2
$9.99
6SG7 Metal Tube 6006 Remote Cutoff Pentode
6SG7 Metal Tube 6006 Remote Cutoff Pentode
$3.38
6EJ7 EF184 Pentode Russian 6J51P Tube
6EJ7 EF184 Pentode Russian 6J51P Tube
$1.85
6AH6 Pentode Tubes Russian 6J5P Lot of 4
6AH6 Pentode Tubes Russian 6J5P Lot of 4
$6.50
NOS Tube CV2231 GEC Pulse Modulator Pentode Electron Tube Made in England
NOS Tube CV2231 GEC Pulse Modulator Pentode Electron Tube Made in England
$59.99
E180F  6688 Pentode Tube Russian 6J9P
E180F 6688 Pentode Tube Russian 6J9P
$2.00
6AK5  EF95 VHF Pentode tubes Russian 6J1P Lot of 5
6AK5 EF95 VHF Pentode tubes Russian 6J1P Lot of 5
$9.95
GU 81 High Power 750W 50MHz Pentode GU81M GU81 HAM Transmitting Generator Tube
GU 81 High Power 750W 50MHz Pentode GU81M GU81 HAM Transmitting Generator Tube
$49.00
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
6B8 Double Diode + Pentode Tube
6B8 Double Diode + Pentode Tube
$3.95
20 PCS 1J29B V 1J29B RUSIAN MINIATURE TUBE HF PENTODE MILITARY
20 PCS 1J29B V 1J29B RUSIAN MINIATURE TUBE HF PENTODE MILITARY
$12.00
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
20 PCS 1J18B 118 RUSIAN MINIATURE TUBE HF PENTODE MILITARY
20 PCS 1J18B 118 RUSIAN MINIATURE TUBE HF PENTODE MILITARY
$18.00
6J7 Metal Tube EF36 Sharp Cutoff Pentode
6J7 Metal Tube EF36 Sharp Cutoff Pentode
$2.75
6SH7 Sharp Cutoff Pentode Tube Russian 6J3
6SH7 Sharp Cutoff Pentode Tube Russian 6J3
$3.85
Soviet miniature PENTODE Tube 6Zh10B 15pcs
Soviet miniature PENTODE Tube 6Zh10B 15pcs
$9.95
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
6AJ7 Pentode Tube
6AJ7 Pentode Tube
$2.85
Svetlana 12J1L HF 200MHz Pentode Tubes Lot of 4
Svetlana 12J1L HF 200MHz Pentode Tubes Lot of 4
$9.70
6B8 Double Diode + Pentode Tubes Lot of 4
6B8 Double Diode + Pentode Tubes Lot of 4
$11.95
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
Up to 10 Philips military JAN6AU6WC miniature sharp cutoff pentode vacuum tube
Up to 10 Philips military JAN6AU6WC miniature sharp cutoff pentode vacuum tube
$7.00
6V6GT Beam Pentode Black Glass Audio Tubes Tested Pulls Guaranteed
6V6GT Beam Pentode Black Glass Audio Tubes Tested Pulls Guaranteed
$12.00
6BQ5 Medium Power Pentode Audio Tube Tested Pulls Guaranteed
6BQ5 Medium Power Pentode Audio Tube Tested Pulls Guaranteed
$7.00
6V6GT Beam Pentode Clear Glass Audio Tubes Tested Pulls Guaranteed
6V6GT Beam Pentode Clear Glass Audio Tubes Tested Pulls Guaranteed
$8.00
6V6GT Beam Pentode Smoked Glass Audio Tubes Tested Pulls Guaranteed
6V6GT Beam Pentode Smoked Glass Audio Tubes Tested Pulls Guaranteed
$11.00
E180F  6688 Pentode Tubes Russian 6J9P Lot of 4
E180F 6688 Pentode Tubes Russian 6J9P Lot of 4
$7.48
Vintage 60s EF14 RFT Vacuum Pentode RF IF Stage TUBE + SOCKET
Vintage 60s EF14 RFT Vacuum Pentode RF IF Stage TUBE + SOCKET
$56.66
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
Soviet Military Power Pentode Generator Tube GU 81M
Soviet Military Power Pentode Generator Tube GU 81M
$29.95
3 X Russian 6J9P  E180  6688 PENTODE tubes PCS 3
3 X Russian 6J9P E180 6688 PENTODE tubes PCS 3
$4.00
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Lot of 4
Svetlana 6AK7 6AG7 Pentode Tube 6P9 Lot of 4
$7.75
6AS6 5725 6F36 HF baby Pentode Tube Russian 6J2P
6AS6 5725 6F36 HF baby Pentode Tube Russian 6J2P
$1.00
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NOS  EBL71  PDD2
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NOS EBL71 PDD2
$11.89
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
NEW MATCHED QUAD 4PCS EL34 6CA7 RFT SIEMENS DIMPLE TOP AUDIO TUBE GERMANY
NEW MATCHED QUAD 4PCS EL34 6CA7 RFT SIEMENS DIMPLE TOP AUDIO TUBE GERMANY
$399.00
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NIB  EBL71  PDD2
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE NIB EBL71 PDD2
$21.24
RF Pentode with the cathode grid 6J22P 7W  200MHz
RF Pentode with the cathode grid 6J22P 7W 200MHz
$4.85
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
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
25 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
25 x 6F12P TUBES TRIODE PENTODE HF WIDE BAND NEW PERFECT
$39.99
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
1P24B V Russian miniature pentode Tubes New Lot 4pcs
1P24B V Russian miniature pentode Tubes New Lot 4pcs
$10.00
1pc 6J38P HF pentode tube USSR Military for audio
1pc 6J38P HF pentode tube USSR Military for audio
$7.00
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
6J43P E Double Anode Pentode Tube Halo getter
6J43P E Double Anode Pentode Tube Halo getter
$2.15
GU80 GU 80 GU81 GU 81 GU81M GU 81M VINTAGE Russian Vacuum Pentode Tube
GU80 GU 80 GU81 GU 81 GU81M GU 81M VINTAGE Russian Vacuum Pentode Tube
$45.00
2 x GK 71  GK71 GK 71 Tubes NEW STRONG Hi End Power Pentode GRAPHITE Plate
2 x GK 71 GK71 GK 71 Tubes NEW STRONG Hi End Power Pentode GRAPHITE Plate
$39.00
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE  EBL71  PDD2
1x EBL21 Vintage TESLA Double Diode Pentode Power Output TUBE EBL71 PDD2
$9.99
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
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes  NEW NOS
2 x TESLA EF806 S Vintage Vacuum Pentode Tubes NEW NOS
$40.00
2 x TELEFUNKEN E180F Vintage Vacuum Pentode Tubes  Tested with Gold Pins
2 x TELEFUNKEN E180F Vintage Vacuum Pentode Tubes Tested with Gold Pins
$15.00
RARE RUSSIAN MILITARY 6J4 6AC7 6AJ7 SUBMARINE PENTODE TUBE 1952y
RARE RUSSIAN MILITARY 6J4 6AC7 6AJ7 SUBMARINE PENTODE TUBE 1952y
$19.00
Military Pentode Miniature tube 1Zh29B 1J29B Lot of 10
Military Pentode Miniature tube 1Zh29B 1J29B Lot of 10
$7.95
6AK5  EF95 VHF Pentode tubes Russian 6J1P
6AK5 EF95 VHF Pentode tubes Russian 6J1P
$2.25
Victoreen 7234 Vacuum Electron Pentode NOS Tube Radio
Victoreen 7234 Vacuum Electron Pentode NOS Tube Radio
$19.95


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