Radio Broadcast (May-Oct 1922)

RADIO BROADCAST 53 AMPLIFIER TUBE COMBINED TRANSMIHER & RECEIVER Fig. 3 or describe the legion adaptations in this Hne, I will mention one with which 1 have personally experimented. The magician or mind-reader is consistently garbed in oriental attire, from his turbaned head which well conceals a pair of phones, to the flowing robes loosely enveloping him and a portable loop receiver of the design shown in figure four. The turns of wire, both the loop and single tickler turn (which should be separated by at least an inch), are easily interwoven through the thirty-six-inch circumference of the burlap band. The upper elastic belt serves to hold the loop in position about the performer's waist. The receiving bulb is preferably a tubular one which will slip easily into a pocket. The elastic belt will also support the filament flashlight batteries and two conventional .0005 condensers, the one in the grid circuit being supplied with a leak. As in the portable ELASTIC BELT TICKLER (1 TURN) .O0P(10TURNSNo.22) transmitter-receiver, the potentiometer R must be varied until the bulb is just below the oscillation point. All tuning is of course accomplished by the variable condenser across the transmitting loop. The illusion is perfect! An assistant passes out slips of paper among the audience with the request that they write thereon any question they may desire an-' swered. Upon collecting them he apparently turns the slips over to his Blindfolded master and exits. The magician holding each slip of paper before his bound eyes then gives relevant answers to every question! The secret is simple. The papers handed the magician are blanks, those upon which the questions are really written being retained by the assistant who, retiring to the wings (or even to the dressing room) reads them via radiophone, to the turbaned sorcerer! 22 VOLTS CONDENSER 4 VOLTS Fig. 4