Modification of Despatch M1A, 1 Kw Microwave

Generator 

Initial Problem: These generators were originally designed and manufactured in the late 70’s. The high voltage transformer had been discontinued years ago and the price of the original 2M131-04A magnetron tube has significantly increased over the last four years. Since there are multiples of these generators ( 15 – 20 ) units on a system, a complete modification was engineered to alleviate the whole system needing replacement.

Purpose of Modification: To replace outdated and discontinued components economically and efficiently.

MES Solution:

·    Replace all components on chassis.

·    Install a more efficient and economical magnetron tube ( 2M137-IL) which is capable of producing 1.25 kilowatts of energy.

·    Install a full wave voltage doubler power supply.

·    Install new waveguide.

·    Replace all wiring inside generator and organize wire runs neatly.

·    Install an elapsed time meter to track hours of magnetron operation.

·    Thoroughly clean outer chassis and paint.

·    Test and burn in generator for four hours at full power.

End Result:

·    Increased efficiency.

·    More reliable operation of microwave generator.

·    Reduced downtime and failure rates for microwave generators and system.

·    Increased airflow throughout generator for cooling of critical components.

·    Extended life of critical components.

·    Economical advantage over complete system replacement.

Before

 After