Radio broadcast .. (1922-30)

Record Details:

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730 Radio Broadcast LIST OF PARTS i Cabinet 7" x 24" i Panel 7" x 24" Rasla Radio-Frequency Tuner— May he purchased, or home-made as described. Variable Condenser .00029 m^ (minimum cap). Rasla Radio-Frequency Transformer— May be purchased, or home-made as described. Fixed Crystal Detector Modern 10-1 Audio Transformer Modern Low Ratio Audio Transformer Rasla Bafancing Condenser — May be purchased, or home-made as illustrated. i Filament Control Switch 4 Sockets 2 i6-Ohm Rheostats 2 Double Circuit Jacks i Single Circuit Jack i Dial — vernier type preferable 9 Binding Posts G Battery Modern Push-pull transformer No. 112 No. 1 13 (Other makes may be successfully employed) Fixed Mica Condenser .6005 mfd. capacity Fixed Mica Condenser .006 mfd. capacity. Fixed Mica Condenser .005 mfd. capacity Fixed Mica Condenser .0-0025 rnfd. capacity 1!:' I J. C. GILBERT Who is in charge of the Department of Agriculture radio market news broadcasting system. The map on the wall shows the location of the broadcasting stations which the Department uses for this service