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Show Assembled Correctly This Set Is Sharpest to Be Obtained BY R. T. DUNCAN Dlrector( Radio nstltnto of imorlca In hooking up a radio set, great care HOOK-UP OF SHORT WAVE RK-GEDTEBATTVE RK-GEDTEBATTVE SLT. Should be taken In connecting the batteries. bat-teries. Here Is a diagram showing how to properly connoct up a short wave regenerative re-generative receiving apparatus. Coming down with the aerial WS strike No. 1 a vuriable condenser of 0005 microfarads capacity. This may be constructed a.s previously outlined In this column, or It may be purchased in any radio equipment shop No. 2 The variocoupler which Is tapped. I No. 3 Plate variometer or tickler. No i Grid leak and grid condons- !er. The grid leak's value should be approximately one megohm and the grid condenser should have a capacity of about .00025 microfarads. Since all detector tubes have different characteristics charact-eristics you will have to experiment toi find out tho value of your grid leak and tho capacity of the condenser best suited for tho tube used. No. 5 Vacuum tube and socket. No. 6--Rhoostat controlling the filament fila-ment current from a six-volt storage battery. No. 7 Head phones which should be of high ohmage n Istam No. 8 Small condenser. Xo 9 A 22-1-2 volt "B" battery marked for tho positive and tho negative. nega-tive. No. 10 Six-volt storage battery similarly sim-ilarly marked. Note thai thi Hegatfvo side of the "B" battery Is COQheoted I to the negative side of the storage or "A" battery. This regenerative receiver requires considerable skill In handling, to get1 the full benefits of its selectivity of tuning. Constructed and assembled eorrectlyi this set is the sharpest to ins obtained, mi |