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What Kind of Receiver Shall I Buy?
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A THREE-CIRCUIT RECEIVER AND TWO-STEP AMPLIFIER With an outdoor antenna, it will operate a loud speaker over considerable distances
a discussion of the distance over which loudspeaker operation is practicable. That distance is materially shorter than most of the glowing accounts of radio would have you believe. There are a great many exceptions to the rule, but the rule is that few stations may be heard dearly on a loud speaker with a three-tube set over distances in excess of one hundred miles. Most people who find interest in distant reception would rather hear a few squawks from a 1,500mile-distant station than a complete program from one near by. There are some threetube receivers made for use with an outdoor aerial that have all the accessories in a single cabinet. As a rule they operate on dry cells and A THRE£-TUBE LOOP SET
Sell for 3 "bOUt $3OO com Jhe diamond shaPed lo°P antenna, used in place of outniptp d(?or Antenna and ground, makes for selective receiving.
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three-tube set for drycell and outside-antenna operation will cost from $85 to $150, without tubes or accessories. There are three-tube receivers designed for operation with a loop aerial. They will operate a loud speaker over distances up to thirty or forty miles with dry cell tubes and somewhat longer distances when storage battery tubes are used. These receivers, for drycell operation, with all the accessories including
two pairs of ear-phones and a good loud speaker, cost approximately $200. For storage battery operation, the cost is about $15 more. The range and volume of these receivers may be improved by the addition of a regular antenna and ground but this improvement is usually accompanied by a
loss of selectivity. This type of receiver has the advantage of being easy to adjust. With three tubes and an outdoor antenna, one may feel sure of very good loud-speaker reception over fairly long distances and similar operation with a loop receiver over somewhat shorter distances.
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WHAT YOU CAN GET WITH FOUR TUBES
NE of the most popular receivers employing four tubes is built on what is called the neutrodyne principle. Such receivers are now being produced by several reliable manufacturers. The results they are producing for people who have known nothing about radio receivers heretofore seem to predict a wave of popularity for them. They have been designed for outdoorantenna and storagebattery operation and may be used for loudspeaker operation over distances of several hundred miles. They are
A FOUR-TUBE RECEIVER
Containing all batteries in the cabinet. It uses a 20 foot antenna