The Electrical experimenter

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: 854 ELECTRICAL EXPERIMENTER April, 1918 Question Box YPr?
April, 1918 ELECTRICAL EXPERIMENTER 855 ViSMliiJii&Jii^t&^^K^iimiii^m^ BLZ Amateurs! Experimenters!! Opportunity Extra-Ordinaire! SBr See also our full page ad on page 809 m;;?tfii^7ilto7iWS3filiXnWiXi^ • * long message and you can listen to the dots and dashes as often as you wish. The tape record thus prepared will last a very long time. 2ND—AS A REGULAR MORSE REGISTER. With instructions which we supply and by using only two magnets (instead of 4) and by making a few slight changes, which any experimenter can do. the machine will write regulation dots and dashes on the tape. A pencil lead Is used to do this. You can then hitch an omnigraph to the recorder, and you are now enabled to read the messages by sight. Or you can send the message yourself with an ordinary key, etc.. etc. 3RD—AS A SPECIAL REGISTER. By utilizing all four magnets a special type of dot and dash can be sent (as used in cable telegraphy). See sample of writing on the tape just leaving machine, above. Tills record can be read just as easy as regulation dot and dash (the dot is represented by the 7T sign). To send such signals a slight change is necessitated which can be made by any experimenter handy with tools. 4TH—AS A TELEGRAPHONE. Every experimenter has long wished for a real telegraphone, whereby the voice is recorded on a thin steel wire, and then reproduced over a cheap style 75 ohm pony telephone receiver. By means of this machine a very efficient telegraphone can be built by any experimenter handy with tools. No expensive extras are needed : a few bits of brass and steel will do the trick. We furnish Blue Prints and full Directions to make all the above apparatus using the recorder. We also furnish 3 paper reel tapes, standard size. Space does not permit listing all of the many good points of the recorder. Suffice it that tne machine Is the most expensive commercial type, with everything of the very beat. A similar machine Is listed at $100.00 In the catalog of the Western Electric Co We bought these machines cheap thru auction, hence the ridiculously low price. AND EVERY MACHINE IS BRANO NEW. has never been used, and is in perfect working order—or money back. We have not a very large quantity of these machines on hand and as we know that there exists a big demand for this recorder, we are almost certain that we will not run this "ad" again. This Is your one chance,—grab It while the machines last—you will never see such a bargain as long as you live—we are quite certain of it. The size of the machine being 19H i^i 84. the net weight 18 lbs. (shipping weight 30 lbs.) Price as described make It necessary to ship It by express or freight. We guarantee Immediate shipment within 24 hours complete after receipt of remittance. Order at once—today —so you won't regret if you live far away you can make telegraphic reservation. In this case we will bold one or more machines awaiting your $15.00 remittance. benefit bv mentioning the "Electrical Expet : me titer" when writing to advertisers. 231 FULTON ST., N. Y. C. "Everything for the Experimenter" •
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Page 69 and 70: April. 1918 SEND PICTURES '.» ELEC
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Page 75 and 76: m *ys. Flexible Covers Handy Pocket

The Electrical experimenter

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