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Thyratrons - Electron DevicesThe Williamsport operation also produces a line of metal-ceramic hydrogen Thyratrons. These devices feature peak anode voltages up to 100KV with switching currents up to 20,000 Amps. They are used as switch tubes in a wide variety of applications such as Radars, Lasers and scientific and medical Accelerators.

 

 

 

Medical Thyratrons

Product # High Voltage Gaps Peak Anode Voltage kV Peak Anode Current A Avg Anode Current Adc Control Grid Drive V/A Cathode Heater Vac/Aac Reservoir Heater Vac/Aac Cross Reference Notes
L-4884B 1 16 325 0.25 200/0.4 6.3/11.5   8503, 5C22, 8613, CV-2520, CV-6022 5,9,14
L-4680 1 25 1000 1.25 600/1.2 6.3/14.5 6.3/6.0 CX-1180 2
L-4904 1 40 3000 3 600/1.2 6.3/22.0 5.0/4.0 CX-1154 2,4
L-4904A 1 36 2000 2 600/1.2 6.3/22.0 5.9/3 TX-1154 2,4
L-4935 2 50 2000 1.5 500/2.5 6.3/22.0 6.3/6.0 0207, F-207 1

Laser and Fast Switching Thyratrons

Prod # High Volt Gaps Peak Anode Voltage kV Peak Anode Current A Avg Anode
Current
Adc
Control Grid Drive V/A Cathode Heater Vac/Aac Reservoir Heater Vac/Aac Cross Reference Notes
L-4189A 1 35 20,000 0.3 500/1.25 6.3/22 .6.3/3 F-189, LP-189, LP-289 11
L-4915B 1 35 7,500 0.3 500/1.25 6.3/22 .6.3/3 HY-3003, F-211, LT-340, F-340 11
L-4961 1 35 10,000 0.25 500/1.25 6.3/22 .6.3/3 246 11
L-4902 1 33 2,400 4 1300/1.80 6.3/25 4.5/10 0117/F-117 2
L-4903 1 33 3,000 4 1300/1.80 6.3/25 4.5/10. 0194/F-194 2,3
L-4945 2 50 10,000 1 200/0.10 6.3/18 6.3/3.0 F229, LS-3229, CX2608

1,2,11

L-4906A 1 35 20,000 0.3 500/1.25 6.3/18 .6.3/3 F-205 7,11

Radar & General Purpose Thyratrons

Prod # EIA # App Spec Peak Anode Current kV Peak Anode Current A Avg Anode Current Adc Control Grid Drive V/A Cathode Heater Vac/Aac Reservoir Heater Vac/Aac Cross Reference Notes
L-4669 7782 MIL-PRF-1/1636 12 350 0.2 175/0.06 6.3/7.0 6.3/2.5 HY-6, KU-71 -
L-4668 7665A MIL-PRF-1/1485 16 350 0.5 200/0.20 6.3/8.0 6.3/4.0 HY-60,FX2522 -
L-4676 7665 MIL-PRF-1/1485 16 350 0.5 200/0.20 6.3/8.0 6.3/4.0 KU-72 -
L-4884 8613 MIL-PRF-1/1590 16 500 0.5 175/0.18 6.3/11.5 - HY-1A,FX2522 5,9
L-4884A - 5389078 16 500 0.5 175/0.18 6.3/11.5 - HY-1050 5,9
L-4958 7620 MIL-PRF-1/1612 20 500 0.5 200/0.20 6.3/7.5 6.3/4.0 HY-1ON, HY-14 -
L-4898 - - 20 500 0.5 175/0.18 6.3/7.5 6.3/4.0 HY-10R,0261,F261 -
L-4897 - - 20 500 0.5 175/0.18 6.3/7.5 6.3/4.0 HY-11T,0265/F-265,FX2541 -
L-4871 5949A MIL-PRF-1/1100 25 1000 1 500/1.25 6.3/22 4.5/5.0 F-150,FX-2519 5,10
L-4960 - - 25 1000 2 500/1.25 6.3/22 6.3/6.0 HY-3055 -
L-4885 7322 MIL-PRF-1/1371 25 1500 2.2 450/0.56 6.3/22 6.3/6.0 1802 6
L-4901 - - 30 2000 2 1100/7.30 6.3/25 4.5/10 CX1670A,0279 4
L-4886 7390 MIL-PRF-1/1361 33 2000 4 1100/7.30 6.3/25 4.5/10 - -
L-4886A - - 35 2000 4 1100/7.30 6.3/25 4.5/10 0281 -
L-4886B 8789 MIL-PRF-1/1658 33 2000 4 1100/7.30 6.3/25 4.5/10 - -
L-4886C 7667 - 33 2400 4 1300/9.30 6.3/25 4.5/10 7667,KU-274 -
L-4990 7890 9747588 40 2400 4 1300/260 6.3/25 4.5/10 7890 1,3
L-4883 8614 713090-18 40 5000 8 1300/6.50 6.3/30 4.5/11 HY-5 -
L-4883A - 7534252 40 5000 8 1300/6.50 6.3/30 4.5/1 HY-5G -

Accelerator Thyratrons

Product
#
High Voltage Gaps Peak Anode Current kV Peak Anode Current A Avg Anode Current Adc Control Grid Drive V/A Cathode Heater Vac/Aac Reservoir Heater Vac/Aac Cross Reference Notes
L-4913 2 70 3,000 3 200/0.1 6.3/25 5.0/7.05 CX1168 1,2,4
L-4963 3 90 3,000 3 1000/0.1 6.3/25 5.0/7.0 CX1171D 1,2,4,13
L-4938 1 35 15,000 12 1500/7.5 6.3/70 4.5/20 146 1, 2,4
L-4888 2 50 7,500 8 1500/7.5 6.3/70 4.5/20 0241, 8479, F-175, CX-1836, CX-1536 2,4
L-4174 1 33 2,000 3 1100/7.3 6.3/30 4.5/10 CX-1174 2,4

Crowbar Thyratron (klystron and IOT protection)

Product # High Voltage Gaps Anode Voltage kV Peak Anode Current A Coulomb Transfer per pulse Coul. Control Grid Drive V/A Cathode Heater Vac/Aac Reservoir Heater Vac/Aac Cross Reference

Notes

L-4945A 2 40 1,500 7 800/0.6 6.3/22 6.3/3 CX-2708 1,2,4

Notes: Unless otherwise indicated, these devices are flange-mounted single voltage gap triodes. Peak Current (ib) ratings can be appreciably higher for sub-microsecond pulse widths. The minumum open circuit control grid voltage and the minimum peak short circuit control grid current is specified. Cathode and reservoir heater voltages are nominal operating voltages. Cathode and reservoir heater currents are the maximum levels for the nominal voltage.

1. Gradient grids, one or more.
2. Auxiliary (preionizing) grid.
3. Integral anode cooling chamber.
4. Shielded gap for x-ray attenuation.
5. Plug-in socket required.
6. MT-4 mounitng socket.
7. Grounded grid (triggered spark gap thyraton).
8. High pulse repetition rate design.
9. Reservoir heater and cathode heater internally connected in parallel.
10. Metal - ceramic version of glass design.
11. Ratings presuppose sub-microsecond pulse widths or single shot/crowbar service.
12. Long-grid ceramic to suppress external arc-over.
13. Oil for De-Qing operation.

For more information - contact us
(Williamsport, PA)

 

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