Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art (1922)
Lescarboura, Austin C. (Austin Celestin), 1891- · New York, Scientific American publishing company [etc.] · leaf 121
low the partly raised window, so as tokeep out the air. The window is brought down on theboard. A hole is made in the board and provided with aporcelain tube insulator, through which is passed the lead-in. The lightning switch or arrester can be mounted onthe board, if desired. Then there is the… … UMBRELLA TYPE ANTENNA, The umorella type antenna,which is only employed whenit is impossible to obtain asufficient span for the antenna.This type is quite popular intransmission work. RADIO FOR EVERYBODY 103 supply system. Where this is not available, pipes con-nected with the heating or gas system…
Radio
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