Military and Special Purpose Vacuum Tubes- RADAR Applications
Military Applications: Transmitting Tubes for RADAR Applications
IEEE Std 521 Microwave Letter Designation
Why not use A, B, C.......? These were established during WW2 (coded to confuse the enemy). We use A, B, C now but for history won't change here.
World War 2 and Before
MAGNETRON
The invention that help the UK and US defeat Germany and Japan during WW2
(1944-45 Raytheon) Serial Number 59Toward the end of WW2 the development of higher frequency microwave magnetrons improved accuracy in search and surveillance of enemy aircraft and ships.
After World War 2 to the end of the 20th Century
5J32: 0.5 KW VHF (90-450 MHz) Twin (SPLIT) Anode Magnetron (1946 General Electric)<<<<<<<<<<<<<<<<<<These lower frequency magnetrons were used as signal jammers to prevent surveillance systems from detecting a ship or plane's position. These required external magnets (not shown). I have seen some units have security classification of CONFIDENTIAL branded on them. Has two lines to allow water to cool the anodes and all the leads and water lines are silver plated.
TRAVELING WAVE TUBE (TWT)
The last and maybe the best RADAR tube
KLYSTRONS
LIGHTHOUSE TUBES or PLANAR TRIODES
UPDATED LIGHTHOUSE TUBE
Glass was replaced with ceramic for better power dissipation and frequency response
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