(a) 



(b) 



fw^wWi 



(C) 



(d) 



SEC. A-A 



SHOWING LOCATION 



OF STRAPS IN TOP 



OF ANODE 



Pi 24.-Schematic diagrams of four strapping schemes used in magnetron resonator 

 systems End views are shown on the left, and views rolled out as m Fig. 23 are shown on 

 the right, (a) represents the early British type of unsymmetrical wire strappmg (i), a 

 single ring type, (c), the so-called echelon type of wire strapping, and (d) the double ring 

 t pe In types a and (b) the straps on each end are at the same radius except where 

 thev overlap but aJe shown separated on the left-hand diagram for clarity. I" >Pes ^ 

 and id) the straps on the same end are at the same height and are shown as in the nght- 

 hand diagrams for clarity. The section A-A through type (d) shown below, indicates hou 

 the straps may be recessed into the resonator structure for shielding. The nature of the 

 frap brlaks introduced into types (c) and (d) are seen.. In type (c) two links are removed 

 and in type {d) actual breaks are made in the otherwise symmetrical rings. The breaks, 

 shown hefe adjacent to the output coupling loop, are usually placed diametrically opposite. 



223 



