Drawing_1213614-01-C.pdf

This is an engineering drawing and specification document for an electron tube klystron amplifier used in the NEXRAD weather radar system. The document (Drawing No. 1213614) details the requirements for a pulsed klystron amplifier operating at up to 1.5 megawatts peak power between 2.7-3.0 GHz, with integral tunable cavities, electromagnetic focusing, waveguide output, coaxial input, and forced air cooling.

The specification includes detailed electrical parameters, environmental requirements, and physical dimensions for three approved manufacturers: Communications & Power Industries (VKS-8287), Litton System Inc. (L-5782-20), and Thomson Electron Tubes (TH2101). Key requirements include operation at voltages up to 88kV, air cooling at 160 cfm minimum, humidity resistance up to 95% RH at 40°C, temperature range of -40°C to +71°C, and x-ray shielding requirements. The document includes detailed qualification test procedures, mounting specifications, and engineering drawings showing precise mechanical dimensions and tolerances. This specification appears to be revision C, last updated in 1996 under contract 50-DKNW-6-00032 for use by NOAA's National Weather Service facility in Norman, Oklahoma.