Document ZJajzM41x8okrrzxRryVOoD0Z

BIDDLE 'Ttecvd, MEGGER* ELECTRICAL INSULATION TESTERS Hand--Recilftcr--or Combination Operation-- Haling* up lo 2000 Megohm* and '1000 Volta D-C HAND CtyANK MEG TYPE of Megger lneu* Iniion Tester is a reliable Gold instru ment, light, sturdy, with s' constant- voltage type gener ator--no dependence yt*. - nn batteries or other "current supply, By for the moat popular inatrument among electrical plant mainte nance men. Easy t<> use--easy to read--and rugged in eonalant services. RECTIFIER OPERATED Meg Type of Megger Inaulailon Teater limply plug* Into a convenient outlet, rortable or flush bench-mounted. A dependable production or (neyeciion inatrument. QuicV, eaay reading* apeed up otherwise coitly teat*. DUAL-OPERATED MEG TYPE of Megger Inanliiion Tester may be operated by hand or rectifier. Excellent solution for those requiring a veraatile inatrument for held end bench uae. INSULATION TESTER & WHEATSTONE BRIDGE in ONE EASILY PORTABLE INSTRUMENT Measure* Electrical Resistances From a Fraction of an Ohm up to 1000 Megohms Afford the facility of: A Whnstslone Uririgc for measuring conductor resistance of coili, ceeiatora and circuit!. A Megger Direct Reutllng Oh'nincier for tneoturlug electrical insulation resistanee (ohm and megohm scales). A Vnrley Loop Feature for Inctting fault! on wires (optional). This Bridge-Meg weight only IS lb. and i completely seli-cnnuined with its own conitenl-vohage generator--no need lo be dependent on batteries or other suitable leal current. Why burden yourself with two ittsiru* menu when you can have the facilities of two for little more than the price of oae in one compact, sturdy case. For complete details and prices write fur RULLtl'lN 21-60 n . IF YOU MEASURE SPEED YOUR BEST BET IS BIDDLE JegebtB Tickamilrr Instantaneous Speeds or Vorlotlon* in Speeds. Write for BULLETIN 3S-P Quick Accurate Readings with Safely BULLETIN 31*P JAMES C. BIDDLE CO. 1316 ARCH STREET PHiieociPMl* r, fa. 230 More BOOKSHELF (1951 edition) and d0|n, ^$9 ance with it. It ahowa ^-,75 one or more illustration, ifJW? rule, clarifying just h0w ,l_ .fiS applied. Illustration} mu,, junction with the Code. iW**< are not included as suahil'ri (Copies of the National fifectrfcLi available (rant National Board t' derwrllera, BS John St, New Yetf] Besides the diagrams, supply is given where helpful. Thi, material shows the why of ths prsctical and theoretics! msteyl^C The second volume deals with for general use. special oeeopsaeffl equipment, special condition*ThieC cation system_s._________ 1v~S Alabama Power Co plan* rion of it* ileam-alcctrlc getemls&l ot Corgas with the conatruciiooTaf'SlS plant to ba known as Gorgu NeN'^n new $25,000,000 plant will hire aifir 150,000 kw General Electric tuib+gSi tor and it la eipceted (hat the plisl*9 lurther expanded to three er faun unite. The Brat unit will be coapj|r 1955. When the new plant U in aw the coal requirement! at Goring increased to I ,500,000 Iona incailj^ Bids will be called Immediately lorflfi lion of a $52 million three-dam praj^ California's Stanislaus River, felWKi proval of a bond issue by South SWi quin-lrrigstion District voters. Rfsi voted to Issue 126 million In revenaetiL. s thalr share of thn cost Veteri/hfii Oakdale Irrigation District had alrara^T proved a similar bond issue. Tbrauk and three powerhouiea will ba boHtL` river at Donnells, Beardsley snd TiDtH provide storage spsee for 230,400 water and produce 01,000 k* of Bonds will be paid by selling povffi Peelfic Cas 6 Electric Co. Aumaasti---McGraw-Hill 9crii*Nf* Development of Philips' hot hts been nearly completed, ectd4lj| Philips Incandescent Lamp Wcrb-.Sc' praeticolly noiseless, hot sir already being produced m seri Jljffl Dordrecht factory and are in domestic Industries. A full alsteofflL, be msde next year. b9_ Tscoms, Wash, has approved a charier which provides that'Oty other municipal utilities will be by a board virtually Independent el1 .jgl couneil. The board will hare "fJI fJJH to construct, condemn and purehitfjhg quire, add to. maintain ond opersts trie, water and belt line rellwsf systems," although "all mitten ,e,/35| system espanslon, the ineurring oj *p. ness, and the fixing ol rales and .ffsgM shall be subject to approval by the POWER MAlCdU PlNG the Public wants BE ,M' ' complete Air Conditioning If1 lOHiaSON ffgTOMATIC TEMPERATURE JONTROL_ _ _ _ _ _ pvA-. jSftPittiburgh Airport, 14 miles west of pfSwpi'famcd "Golden Triangle", provides S&jWrfevery convenience that the public de* fCTeVVlly a small city in itself, this most jRJ$j>mmercial air terminal in the world /u&ullimste in service and comfort, ragSaptic, seven-story terminal building is Jgyjijgjjcd throughout and includes hotel ffij?jp{fice9, motion picture theater, dining jnjjSffce shop, cocktail lounge, night club, NSffice^exhibit rooms, retail shops ond public Sfitiiverse services present many different SUre'regulation problems, moat of which r?d'automatically by the proper application jfonjCtmiroi. All the way from the control dmi!u(d room temperatures, for human the protection of delicate electronic Qa&ocialed with the safe operation ond $f aircraft, the Johnson "Planned-for* Ssi", "Jnstalled-for-ihe-Purposa" Con* ...em solves tho problems effectively, jfeamc systems which are applied to the Ijuttneate temperature regulation problems 'je'odlion's outstanding buildingB are also w^^to you. Whether your building presents of problems or a relatively simple ution of automatic temperature control, Johnson engineer from a nearby branch. benefit of the many years of expert* ^hich has been accumulated by the only or8flni*aiion devoted exclusively lo 4sct)iring, planning and installing auto* -^fdpwsture control systems. JOHNSON COMPANY, Milwaukee 2, Wisconsin. "P!$rjnches in Principal Cities. Terminal Building, Greater Pittsburght Airport, PUliburgh, Po. Joseph Hoover, ordd* lecti Theodors P. Rockwell ond EJwco1-d P. lower, mechanical engineers* McGWtneu, Smllti, McGInnen Compony. heatl!ig and air canditlanhvg cantroctan, all of Pittsburgh. Johnson T-901 IsmolS Bulb Swbeiotter Thermoitot*. isod* lulled by 3-222 Grodusl Switches, control the capacity of each of two SSO.ton Cor* rier centritvgal refrigerating machine* that furntih chlUed water for the cooling tyilem. Behind the cenei, in machine room*, iohnton 1-B00 hsritt Remote Bulb Thermoi*at*( meo luring theoutdoovlempev* oture, readjust 1-901 Sub*' matter 1herme*tot which con* trol V-1B3 Volve* on the iteom supply lo ths converter*. Hotel gueit room hev# unit* ruppDod,during the hooting laotorv with hot woter ond, during the coaling season, with dtillid woter controlled by Johnson 5ubmotler Instru ment*. Many Individual ofllces In the building have Johnson T-Ol Heallng-CooUng Roam ThermOstols In oddlUan. JOHNSON aJ&uf&tna/ic STom/talahtAa CONTROLAPPLICATION . INSTALLATION *INCI UBS tf&fo 9ondiltaninff MARCH 1953 231