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Show IpjajMi-ifajniiMi wiiiui.iiijiimm mi nn irnfTiiWiTfciaM' rnn iiTnrii air.Bniiiiii Jr--.iMiaJi Hear Radio Music Over Home Phone Detector Connection Permits Per-mits Reception of Local Broadcasts t Will. I Ely CARL H. EUTMAN I In tho rhivsitf,! ISilly N, ws. I Washington. If a new crystal de-' de-' teelor recently patented ns a tele-! tele-! idiotic attachment Is put on the market, mar-ket, many fans may ivluni 10 the , tlelighllully clear reception and sim-i sim-i pl'ci'.y of operation allorded by the lirsl lype of radio receiver, Literally I It uniounl-s to u pod;el crystal recelv-' recelv-' Ing set or, if di .sired, an adjustable nnd perhaps more elilcient lube receiver receiv-er which may be ailached lo ally desk 1 telephone and used lo listen to local broadcasts, utilising the regular lele-i lele-i phone receiver. i Patent No. 1 .022, .".m, Issued to.ti. F. Mitchell of Washington, and as yet I unnssignod, covers a simple means of j constructing a crystal radio receiver readily uttaehable l an ordinary tele-plieno. tele-plieno. Its ue may depend, however, Upon securing the permission from local lo-cal telephone companies. All examination exam-ination of contends may prevent its general use. although It Is said not to interfere Willi Ihe ordinary use of the phone. Devico Is Compact, Simple. The device Is exceedingly Inierest-Ing, Inierest-Ing, compact and simple. It carries out the ie hemo of u-.iag the lines cf the telephone company as an aerial for broadcast recepiii n, but In addition addi-tion pvimils the u-e of the telephone earpiece Itself. Its addition clnii-nalis, clnii-nalis, therefore, the ncid for an nerlal, head piT.cies, extra wiring, or liny modili : . 1 1 . .n ef the le', plume c:r- ClUt beyrll'l Sll.lpie coniieciiotlS witii the coie'.u 'Irrs. ll Is portable and adjustable ad-justable to any pi. ore In a few- n'C-onds, n'C-onds, apparel. tlv without Interfering Willi noriiial leh phonic operation. The apparatus cell l-'s rf a hollow box or brush;,;, about ti.e sire rf ihe Verlical piece of ordinary telephone standard, to wl,;, h ll Is u:t:i. bed by J v.. '.'':! .x ' ' '; i j s ' V i . i i . I i :-- ' L X -K'- s . j - Invontion Ooei Not Ro.juire Ua of Haadtot. &peakr or Antenna. tliree Kprlm cllpi. The back ef this lioiislng 1m unit I e nf Insnl.i'ii j; ni.ite-rial. ni.ite-rial. A Contact .strip 'rem the top of the housing member engages mid niakeH electrical contact Uh Uir i,,p of the phone stand. Mmii.'ed rn Irp Ibis housing Is an sdjasiabl,. iijslal rectifier connecltd by wlies Inside the housing to leriuiii.'il.s. Latch Hokli Switch. In one side of the hou dug Is moutit-d moutit-d a inechanlcal ln'cli which, when eiigncetl. prevents th,. rlsiuu of ihe tel. plume wltcli or book when Ihe receiver Is liftvd nnd ns.sl lo licn In on broil, b us! s picked up by Ihe telephone tele-phone wires. When this latch Is ills, engaged Ihe telephone limy be used In Ihe ordinary wu) for oun ersai Ion. As In n simple crystal re, rler i lr cull, the regular leleplioue reedxer, or If desired, n pair of ear plumes, Is connected ncro-.s Ihe tleieclor which Is placed between i,,. cilul ,u:,l ground cminect Ions. Aiioiber possible t on nrc( oii penults tin- shntillng of s pair of e.ir pinnies by ineiins of u condenser and the nil-II711II011 nil-II711II011 of a f mi 1 11 In, 1, tun, e ols.,.,1 Inshle the hollow housing, slinfi. Mr, Mllcbell explains In bis patent sped llcnllons liow nn elecireu lui'e circuit limy also be iidnpled who variable - limine, condi'iiKcr, mlnlnlin ,, (ubes mill priK llcnlly all ihe feniure.s of a lulu-set lulu-set are ull placed within Ihe bousing member, An.-ither Form of Linking Up. One means nf e.itiiblishlntt oonlnots with the phone wires Ii by i;l(-,- :lt llexllile coniiectlne wlies tipped wlih I In points for Ihrustlin tlnonsli the enrd Iciidlni: to Ihe teb pit, me receiver o ns lo put It In the output circuit of Ihe radio receiving uppai iilus, w hile anol lier wire i nso, for 11 ;i rniiil crn-tae. crn-tae. Another ailnpinllen pimbN--i for n ieon perniiiuent connect Ing n,v item ( otnn, i h f 1 1 K 11 pair of nickels and 11 l's pronged ping, probably lo be pro- vide, I by lh.' tceiiiM mil. 1 ii ' In I lie Inn e of ihe phone stand for then.' 'on tin lie". |
