Frederick W. Chesson FILE: VT.HTM
144 Fiske Street,
Waterbury, CT 06710 Rev: 4-26-05
Military VT- Tube to Commercial Tube Conversion Tables
R/B = Replaced by... R/F = Replacement for...
VT No. Commercial No. Remarks Navy Equivalent
--------------------------------------------------------------------------
VT-1 WE-203A ruggedized Navy CW-933 (CW = Western Electric Co.)
VT-2 WE-205B Navy CW-931
VT-3 WE "P" triode, WW I. Samples for 1-ch carrier telgph. (Tynbe)
VT-4A WE-211A Navy CW-1818
VT-4B 211 Navy CG-1984 and CW-1818A (CG = General Electric Co.)
VT-4C JAN 211 used in BC-191, BC-375 transmitters
VT-5 WE-215A Navy CW-1344
VT-6 212A Navy CW-1819
VT-7 WX-12
VT-8 UV-204
VT-9 --
VT-10 GE "P" Navy CG-916
VT-11 GE "G" Navy CG-890
VT-12 GE "T"
VT-13 improved "G" Navy CG-890
VT-14 proto GE UV-201 NavyCG/CW-1162
VT-15 --
VT-15 Low-current recvr triode, post-WW I, "duckfoot" base. (J. Vanicek)
VT-16 improved "T"
VT-17 PT860
VT-18 GE "U"proto UV-203 Navy CG-1144
VT-19 861 WL407
VT-20 De Forest Recvr. triode, WW I (Tyne)
VT-21 De Forest Recvr. triode, WW I (Tyne)
VT-22 204A Navy CG-1860
VT-23 --
VT-23 Unknown type- "obsol." early.
VT-24 864 FR-300
VT-25 10 used in BC-191, BC-375 transmitters
VT-25A 10Y thoriated filament
VT-26 22
VT-27 30 Navy SE-3872
VT-28 24, 24A
VT-29 27
VT-30 01A Navy SE-4374
VT-31.....31 ..... indicates VT and commercial number equivalancy
VT-32 --
VT-32 Moorhead Lab WW I export to UK. Br. 4-pin base. Not reg SC item.
VT-33.....33
VT-34 207 Navy CG-1971
VT-35.....35/51
VT-36.....36
VT-37.....37
VT-38.....38
VT-39 869 Navy SE-3071
VT-39A 869A
VT-40.....40
VT-41 851 Navy CG-2172
VT-42 872 Navy SE-3070
VT-42A 872A Spec
VT-43 845 WL-412
VT-44 32
VT-45.....45
VT-46 866 Navy SE-3069
VT-46A 866A
VT-47.....47
VT-48 41
VT-49 39/44
VT-50.....50
VT-51 841
VT-52 45 Spec 2C45 (7V fil) Navy 38142
VT-53 Cancelled WL-436. Replaced by VT-42A
VT-54 34
VT-55 865 Navy SE-3294
VT-56.....56
VT-57.....57
VT-58.....58
VT-59.....59
VT-60 850
VT-61 --
VT-62 801, 801A
VT-63 46 U/W BC-223
VT-64 800 RK30
VT-65 6C5
VT-65A 6C5G
VT-66 6F6
VT-67 30 Special base
VT-68 6B7
VT-69 6D6
VT-70 6F7
VT-71 --
VT-72 842
VT-73 843
VT-74 5Z4
VT-75.....75
VT-76.....76
VT-77.....77
VT-78.....78
VT-79 --
VT-80.....80 (CX-280 Full-Wave Rectifier)
VT-81 --
VT-82 --
VT-83.....83
VT-84.....84/6Z4
VT-85 --
VT-86 6K7 First octal base VT
VT-86A 6K7G
VT-87 6L7
VT-87A 6L7G
VT-88 6R7
VT-88A 6R7G
VT-88B 6R7GT
VT-89.....89 Last VT- and Commercial No. equivalant designation
VT-90 6H6 First metal shell VT
VT-90A 6H6GT GT = glass envelope version of metal tube.
VT-91 6J7 1603, 1620 are selected 6J7 (UK: CV657)
VT-91A 6J7GT
VT-92 6Q7G
VT-92A 6G7G
VT-93 6B8
VT-93A 6B8G
VT-94 6J5
VT-94A 6J5G
VT-94B 6J5 Special
VT-94C 6J5 Special
VT-94D 6J5GT
VT-95 2A3
VT-96 6N7
VT-96B 6N7 Special
VT-97 5W4
VT-98 6U5/6G5
VT-99 6F8G
VT-100 807
VT-100A 807 mod
VT-101 837
VT-102 --
VT-102 Cancelled.
Vt-103 6SQ7 first 6S... tube
VT-104 12SQ7
VT-105 6SC7
VT-106 803 RK-28A
VT-107 6V6 VT 107-112 used in early radar sets, SCR-268-270
VT-107A 6V6GT
VT-107B 6V6G
VT-108 450TH
VT-109 2051
VT-110 --
VT-111 5PB4/1802P4 5-inch CRT
VT-112 6AC7/1852
VT-113 --
VT-114 5T4
VT-115 6L6 Original metal shell 1622 selected 6L6 (UK CV658)
VT-115A 6L6G Glass envelope version
VT-116 6SJ7
VT-116A 6SJ7GT
VT-116B 6SJ7Y
VT-117 6SK7
VT-117A 6SK7GT
VT-118 832
VT-119 2X2/879
VT-120 954 UHF Acorn tube
VT-121 955 " " "
VT-122 530 water-cooled triode
VT-123 RCA A-5586 see VT-128
VT-124 1A5GT
VT-125 1C5GT
VT-126 6X5
VT-126A 6X5G
VT-126B 6X5GT
VT-127 100TS Power ring-oscillator tube, for SCR-268 Radar
VT-127A Eimac 100TS
VT-128 1630 (A5588) Electron-multiplier pre-amp for SCR-270, 271 Radar
VT-129 304TL
VT-130 250TL
VT-131 12SK7 used in SCR-274N & ARC-5 Command Set Receivers
VT-132 12K8 Special " " "
VT-133 12SR7 " " "
VT-134 12A6 " " "
VT-135 12J5GT " " "
VT-135A 12J5
VT-136 1625 12-volt 807 used in SCR-274N & ARC-5 Command Set Xmtrs
VT-137 1626 " " " "
VT-138 1629 12 V 6E5 " " " "
VT-139 VR-150/30 " " " "
VT-140 1628 UHF triode (8012) R/B VT-228, U/W SCR-518, APQ-9 jammer
VT-141 531 HV rectifier
VT-142 WE-39DY1 doorknob triode
VT-143 805 WE-331
VT-144 813
VT-145 5Z3
VT-146 1N5GT
VT-147 1A7GT
VT-148 1D8GT
VT-149 3A8GT
VT-150 6SA7
VT-150A 6SA7GT
VT-151 6A8G
VT-151B 6A8GT
VT-152 6K6GT
VT-152A 6K6G
VT-153 1664 12C8 with Micanol base
VT-154 814 RK-47
VT-155
VT-156,157, 159,160 "Signal Corps Labs Specials" for Zahl/VT-155. Several
variants, no known use or commercial nos. (Sibley)
VT-158 "Special" Zahl glass 600-MHz 250-kW osc. for SCR-584, AN/TPS-3
Radar (WX3092) Made by EI, HK, ML, Pioneer.
VT-161 12SA7
VT-162 12SJ7
VT-163 6C8G
VT-164 1619 2.5 V 6L6 U/W BC-604, 684 Xmtrs (UK: CV723)
VT-165 1624 2.5 V 807 U/W BC-604, 684 Xmtrs
VT-166 WE-371A Rectifier
VT-167 6K8
VT-167A 6K8G
VT-168 6Y6
VT-168A 6Y6G
VT-169 12C8
VT-170 1E5-GP
VT-171 1R5
VT-171A 1R5 Loctal
VT-172 1S5
VT-173 1T4
VT-174 3S4
VT-175 1613 selected 6F6 U/W BC-640*, 653 (UK: CV655)
VT-176 6AB7/1853
VT-177 1LH4 U/W BC-659
VT-178 1LC6
VT-179 1LN5
VT-180 3LF4
VT-181 7Z4
VT-182 3B7/1291 Loctal U/W BC-620, 1149
VT-183 1R4/1294 Loctal diode U/W BC-620
VT-184 VR-90/30
VT-185 3D6/1299
VT-186 Special
VT-187 575A GL-512A Rectifier
VT-188 7E6 Loctal base, used in SCR-515/BC-645 IFF Set
VT-189 7F7 " " " "
VT-190 7H7 " " " "
VT-191 316A "Doorknob Tube" " "
VT-192 7A4 Loctal " "
VT-193 7C7 " " "
VT-194 7J7 " " "
VT-195 CK-1005
VT-196 6W5G FW Rect.
VT-197 probably 5Y3G
VT-197A 5Y3GT/G
VT-198 6G6
VT-198A 6G6G
VT-199 6SS7
VT-200 VR-105/30
VT-201 25L6
VT-201C 25L6GT
VT-202 9002
VT-203 9003
VT-204 HK24G 3C24
VT-205 6ST7
VT-206A 5V4G
VT-207 12AH7GT
VT-208 7B8
VT-209 12SG7
VT-210 1S4
VT-211 6SG7
VT-212 958
VT-213A 6L5G
VT-214 12H6
VT-215 6E5 "Magic Eye" tuning indicator tube
VT-216 816 866-Jr MV Rect.
VT-217 811
VT-218 100TH
VT-219 8007 Beam Amp.
VT-220 Eimac 250TH
VT-221 3Q5GT
VT-222 RX884 6Q5G
VT-223 1H5GT
VT-224 RK-34 2C34
VT-225 307A RK75
VT-226 3EP1/1806P1 3" CRT
VT-227 7184 S/T 6V6
VT-228 8012 R/F VT-140 (UK: CV662)
VT-229 6SL7GT
VT-230 350A RK49
VT-231 6SN7GT
VT-232 E-1148 3.5 Watt Triode
VT-233 6SR7
VT-234 HY-114B
VT-235 HY-615
VT-236 836 (CRP-836, RK-836)
VT-237 957
VT-238 956
VT-239 1LE3
VT-240 WE-710A
VT-241 7E5/1201
VT-242 --
VT-243 7C4/1203A
VT-244 5U4G
VT-245 2050 Thyratron
VT-246 918 Phototube
VT-247 6AG7
VT-248 1808P1/3CP1 3" CRT
VT-249 CK1006
VT-250 EF50
VT-251 GL441 Phototube
VT-252 923 Phototube
VT-253 --
VT-254 HK-304TH
VT-255 WE-705A Rectifier
VT-256 ZP486 GL-486 Magnetron
VT-257 K-7 2J30 Magnetron
VT-258 --
VT-259 829
VT-260 VR-75/30
VT-261 --
VT-262 --
VT-263 --
VT-264 3Q4
VT-265 --
VT-266 1616 2B26 Half-wave HV Rect. (UK: CV656)
VT-267 WL-578 GL-451 Rectifier
VT-268 12SC7
VT-269 WE-717A
VT-270-276 no listings found, so far.
VT-277 WL-417* 417 Klystron
VT-278 --
VT-279 GY-2 Thyratron
VT-280 C7063 1P24, 936 Phototube
VT-281 HY-145ZT Sub-miniature Pentode
VT-282 ZG489 Thyratron
VT-283 QF-206 Sub-miniature Pentode
VT-284 QF-197 Sub-miniature Diode
VT-285 QF-200C Sub-miniature Triode
VT-286 832A Power Amp
VT-287 815
VT-288 12SH7
VT-289 12SL7GT (last-knownd VT- Number, Oct, 1943. Rpl by JAN- nos.)
VT- Commercial Cross-Index
VT No. Commercial No. Remarks
------------------------------------------------------------------------------
Numeric Tube Designations
VT-30 01A (201A)
VT-25 10 U/W BC-191, BC-375 transmitters
VT-25A 10Y thoriated filament (used in BC-375* Xmitters)
VT-7 WX-12
VT-26 22
VT-28 24, 24A
VT-29 27
VT-27 30
VT-67 30 Spec
VT-225 307A
VT-31.....31 (..... indicates same VT-Comm. numbers)
VT-44 32
VT-33.....33
VT-54 34
VT-35.....35/51
VT-36.....36
VT-37.....37
VT-38.....38
VT-49 39/44
VT-40.....40
VT-48 41
VT-63 46
VT-49 39/44
VT-45.....45
VT-52 45 Spec
VT-47.....47
VT-50.....50
VT-35.....35/51
VT-56.....56
VT-57.....57
VT-58.....58
VT-75.....75
VT-76.....76
VT-77.....77
VT-78.....78
VT-80.....80
VT-83.....83
VT-84.....84/6Z4
VT-89.....89 Last VT- Commercial No. equivalant designation
VT-1 WE-203A, ruggedized
VT-22 204A
VT-8 UV-204
VT-2 WE-205B Navy CW-931
VT-34 207
VT-4B 211
VT-4C JAN 211 used in BC-191, BC-375 transmitters
VT-6 212A
VT-5 WE-215A
VT-220 250TH
VT-130 250TL
VT-254 304TH
VT-129 304TL
VT-191 316A UHF "Doorknob Tube U/W BC-645/SCR-515 IFF Set
VT-230 350A
VT-166 371A
VT-251 441
VT-108 450TH
VT-277 417
VT-122 530 water-cooled triode
VT-141 531
VT-187 575A
VT-267 578
VT-255 705A
VT-240 710A
VT-269 717A
VT-64 800
VT-62 801,A
VT-228 8012 R/F VT-140 (UK: CV662)
VT-106 803
VT-143 805
VT-100 807
VT-100A 807 mod
VT-217 811
VT-144 813
VT-154 814
VT-287 815
VT-216 816
VT-259 829
VT-118 832
VT-286 832A
VT-236 836
VT-101 837
VT-51 841
VT-72 842
VT-73 843
VT-43 845
VT-60 850
VT-41 851
VT-17 860
VT-19 861
VT-24 864
VT-55 865
VT-46 866
VT-46A 866A
VT-39 869
VT-39A 869A
VT-42 872
VT-42A 872 Spec
VT-222 884
VT-246 918
VT-252 923
VT-120 954 Acorn tube
VT-121 955 " "
VT-238 956 " "
VT-237 957
VT-212 958
VT-245 2050
VT-109 2051
VT-227 7184
VT-202 9002 miniature, 7-pin tube
VT-203 9003 " " "
Filament Voltage Tube Designations
VT-124 1A5GT
VT-147 1A7GT
VT-125 1C5GT
VT-148 1D8GT
VT-170 1E5-GP
VT-223 1H5GT
VT-178 1LC6
VT-239 1LE3
VT-177 1LH4 U/W BC-659
VT-179 1LN5
VT-146 1N5GT
VT-183 1R4/1294 Loctal diode U/W BC-620
VT-171 1R5
VT-171A 1R5 Loctal
VT-210 1S4
VT-172 1S5
VT-173 1T4
VT-95 2A3
VT-119 2X2/879
VT-149 3A8GT
VT-182 3B7/1291 Loctal U/W BC-620, 1149
VT-185 3D6/1299
VT-180 3LF4
VT-264 3Q4
VT-221 3Q5GT
VT-174 3S4
VT-114 5T4
VT-244 5U4G
VT-206A 5V4G
VT-97 5W4
VT-197A 5Y3GT/G
VT-145 5Z3
VT-74 5Z4
VT-151 6A8G
VT-151B 6A8GT
VT-176 6AB7/1853
VT-112 6AC7/1852
VT-247 6AG7
VT-68 6B7
VT-93 6B8
VT-93A 6B8G
VT-65 6C5
VT-65A 6C5G
VT-198 6G6
VT-198A 6G6G
VT-163 6C8G
VT-69 6D6
VT-215 6E5
VT-196 6E5G
VT-66 6F6
VT-70 6F7 38667
VT-99 6F8G
VT-90 6H6 First metal shell VT No. 38566H
VT-90A 6H6GT GT = glass envelope version of metal tube.
VT-94 6J5
VT-94C 6J5 Special
VT-94B 6J5 Special
VT-94A 6J5G
VT-94D 6J5GT
VT-91 6J7 1603, 1620 are selected 6J7 (Brit CV657)
VT-91A 6J7GT
VT-152A 6K6G
VT-152 6K6GT
VT-86 6K7 First octal base VT
VT-86A 6K7G
VT-167 6K8
VT-167A 6K8G
VT-213A 6L5G
VT-115 6L6 Original metal shell 1622 selected 6L6 (UK CV658)
VT-115A 6L6G Glass envelope version
VT-87 6L7
VT-87A 6L7G
VT-96 6N7
VT-96B 6N7 Special
VT-92 6Q7
VT-92A 6Q7G
VT-88 6R7
VT-88A 6R7G
VT-88B 6R7GT
VT-98 6U5/65G
VT-107 6V6 following used in early radar sets, Mainly SCR-270
VT-107B 6V6G
VT-107A 6V6GT
VT-196 6W5G FW Rect.
VT-126 6X5
VT-126A 6X5G
VT-126B 6X5GT
VT-168 6Y6
VT-168A 6Y6G
VT-84 84/6Z4
VT-150 6SA7
VT-150A 6SA7GT
VT-105 6SC7
VT-211 6SG7
VT-116 6SJ7
VT-116A 6SJ7GT
VT-116B 6SJ7Y
VT-117 6SK7
VT-117A 6SK7GT
VT-229 6SL7GT
VT-231 6SN7GT
Vt-103 6SQ7
VT-233 6SR7
VT-199 6SS7
VT-205 6ST7
VT-192 7A4 Loctal, 6-7 V Fil Tubes
VT-208 7B8
VT-243 7C4/1203A
VT-193 7C7
VT-241 7E5/1201
VT-188 7E6 U/W BC-645 IFF Set
VT-189 7F7 " "
VT-190 7H7 " "
VT-194 7J7 " "
VT-181 7Z4
VT-134 12A6
VT-207 12AH7GT
VT-169 12C8
VT-153 12C8/1664 with Micanol base
VT-214 12H6
VT-135A 12J5
VT-135 12J5GT
VT-132 12K8 Special Base U/W SCR-274N & ARC-5 Receivers
VT-161 12SA7
VT-268 12SC7
VT-209 12SG7
VT-288 12SH7
VT-162 12SJ7
VT-131 12SK7
VT-289 12SL7GT last-known issued VT- Number, 1944
VT-104 12SQ7
VT-133 12SR7
VT-201 25L6
VT-201C 25L6GT
VT-91 1603 selected 6J7 (Brit CV657)
VT-175 1613 selected 6F6 U/W BC-640*, 653 (UK: CV655)
VT-266 1616 HV Rect (Brit CV656)
VT-164 1619 2.5 V 6L6 U/W BC-604, 684 Xmtrs (UK: CV723)
VT-91 1620 selected 6J7 (Brit CV657)
VT-165 1624 2.5 V 807 U/W BC-604, 684 Xmtrs
VT-136 1625 12-volt 807 for SCR-274N Xmtrs & ART-13 (UK: CV659)
VT-137 1626 " " " " "
VT-140 1628 UHF triode (8012) R/B VT-228, U/W SCR-518, APQ-9 jammer
VT-138 1629 12 V 6E5 "Magic Eye" Tuning tube for SCR-274N Xmtrs
VT-128 1630 (A5588) Electron-multiplier pre-amp SCR-270, 271 Radars
VT-153 1664 12C8 with Micanol base
VT-248 3CP1/1808P1 3" CRT
VT-226 3EP1/1806P1 3" CRT
VT-111 5PB4/1802P4 5" CRT
VT-280 C7063
VT-232 E-1148
VT-250 EF50
VT-279 GY-2
VT-204 HK24G
VT-234 HY-114B
VT-281 HY-145ZT
VT-235 HY-615
VT-257 K-7
VT-284 QF-197
VT-285 QF-200C
VT-283 QF-206
VT-123 RCA A-5586/1630
VT-224 RK-34
VT-260 VR-75/30
VT-184 VR-90/30
VT-200 VR-105/30
VT-139 VR-150/30
VT-142 WE-39DY1
VT-7 WX-12
VT-282 ZG489
VT-256 ZP486
Numbered Naval Vacuum Yube Items
38xxx = Vacuum Tubes
CG-886 First triode, 3-pin base, later VT-11,13 1917
CG-890 Transmitting version of CG-886, "Pliotron", later VT-12,14,16 1918
CG-916 Early Power Triode (250 W) 1918
CG-1144 Power Triode (50 W) 1918
CG-1162 Power Triode (5 W) "Pliotron" like CW-931 1918
CG-1323 Receiver, 308-592 KC 5 ch Battleship use c1920
CG-1353 Power Triode (3 KW) 1921
CG-2172 Power Triode (1 KW) 1921
CW-186 WE Type D. Equivalent to type 201, early globular type, R/B CW-933
CW-931 WE Type E. Transmitting Tube, 5 W. Equivalent to Army VT-2 1915
CW-933 WE Type J., like Army VT-2, or 205B 1913
CW-1162 Transmitting Triode, like VT-14
CW-1344 WE Type N. Receiving Triode 1918
CW-1818 Transmitting Triode, like VT-4 and 211A, 1920
CW-1818A Transmitting Triode, like VT-4B and 211D
CW-1819 Transmitting Triode, like VT-6 and 212A
CW-1819A Transmitting Triode, like VT-6A and 212D
CW-1887 Transmitting Triode, like 220B
CW-2354 Transmitting Triode, like 225A
CW-38015 Triode, like 215-A
CW-38112 Transmitting Triode, like 212E
CW-38120 Transmitting Triode, like 220B
CW-38142 Special 45 Triode, like VT-52
CW-38282 Transmitting Tetrode, like 282
CW-38412 Transmitting Pentode, like 312A
CW-38907 Transmitting Tetrode, like 807 and VT-100*
38xxx* Vacuum Tubes Note correspondence with last two numbers and
38001 01A commercial designatiors...
38012 112A
38015 WE-215A
38019 19
38022 22
38024 24A
38027 27
38030 30
38031 31
38032 32
38032A 1B4P special type 32?
38033 33
38034 34
38035 35
38036 36
38037 37
38038 38
38039 39
38040 40
38041 41
38042 42
38045 45
38047 47
38050 50
38053 53
38056 56
38057 57
38058 58
38059 59
38064 864
38071 71
38075 75
38076 76
38077 77
38078 78
38080 80*
38085 85
38089 89
38101 801
38103 203A
38104 204A
38015 WE-215A
38107 207
38110 10
38111 Special 211
38112 WE-212E
38116 4B26/WL-289416D/GE-189049
38117 217C
38120 WE-220B
38138 838
38142 WE Special 45, like VT-52
38143 843
38145 845
38146 846
38149 849
38150 850
38151 851
38152 852
38157B 857B
38158 858
38160 860
38161 861
38162 862
38165 865
38166A 866A
38169A 869A
38170 870
38171 871
38172A 872A
38180 80
38181 81
38182 82
38183 83
38184 84
38193 893
38205 VR-105/OC3
38211 211
38213 2A3
38215 2A5
38220 ZB-120
38222 RK-22/3B23
38227 2B7
38233 RK-33/2C21/1642
38236 1C6
38250 VR-150/OD3
38255 25Z5
38266A 836
38267 1616
38268 868
38274 874
38275 VR-75/OA3
38276 876
38278 HS-1278
38282 WE-282 Tetrode
38286 886
38290 VR-90/OB3
383xx none found
38401 3B21/EL302.5
38402 4B22/EL5B2.5
38403 4B23/EL5B-HD
38404 4B24/EL3C
38405 3B22/EL1C
38412 WE-312A Pentode
38565J 6J5
38566H 6H6
38567K 6K7
38567R 6R7
38568K 6K8
38593 5Y3
38616 6A6 note alpha-numeric corresponcdence in this grouping
38817 6A7
38627B 6B7
38636C 6C6
38646D 6D6
38655E 6E5
38656J 6J5
38667 6F7
38674 4B25/EL-6C/GE-45X674
38674A EL6C
38717E 1E7G
38765J 6J5G
38766Y 6Y6
38768F 6F8G
38803 803
38807 807
38814 814
38833 833
38837 837
38842 842
38853 6AB7/1853
38884 884
38897 4B27/GE-16X897
38907 WE-807 like 807 and VT-100* Tetrode
38955 955 Acorn Triode
38956 956
38957 -
38958 958
38959 959 last on list as of 9-30-1941
Miscellaneous Tubes
JHY-OB2 OB2 VR-Tube made by Hytron
JRC-3A5 3A5 Tube made by RCA
JRC-OB2WA OB2WA Tube made by RCA in 1966
JRP-1AE4 1AE4 Tube made by Raytheon
JHS-1U5 1U5 Tube made by Sylvania
JTL-3V4 3V4 Tube made by Tung-Sol
CWL-25L6GT 25L6 Tube made by Westinghouse
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