[Transcriber's Note: This ebook contains two manuals by Delco: Delco Radio Owner's Manual Model 633 and Delcotron Generator Installation. They are separated by a divider. In the list on pages 10 and 11 of Delco Radio Owner's Manual Model 633, the second station line for Tulsa (which is CFRB 690) has been removed, as it is believed to be an accidental reprinting of the following station line. Redundant headers and (foot)notes on these pages have also been removed.] DELCO RADIO OWNER'S MANUAL MODEL 633 INSTALLATION AND OPERATING INSTRUCTIONS This model of the Delco Radio is a six-tube super-heterodyne receiver designed for operation with a HEADER type speaker. It comprises the best in automotive radio engineering, featuring Syncro-Tuning--the newest, most efficient antenna circuit yet developed, and Sensitivity Control. The speaker and remote control unit are supplied in separate packages and are available in a wide variety of types and styles, depending upon the make and model of car the unit is to be used on. The package contains: _Part No._ 1 Receiver Unit, complete with tubes 1 Speaker Unit (less Adapter) 1210934 1 Combined Drilling Template and Radio--Dash Spacer 2 Chassis Mounting studs, 1/4--20 x 2-1/2 1207562 2 Chassis Mounting Shakeproof Washers 1208565 2 Chassis Mounting Nuts, 1/4--20 120375 1 Antenna Lead 1209622 1 Distributor Suppressor 1207818 1 Generator Condenser 1849014 1 Ammeter Condenser 1209333 INSTALLATION =Antenna--= See Instructions in antenna package. =Chassis--= This receiver may be installed on any car with Positive or Negative ground without any changes of wiring. When possible, locate the chassis on the driver's side of the dash, over the steering column, with the removable cover plate facing the floor. This position places the control shafts on the end of the case facing the center of the car. Locate the position of the mounting holes by means of the template included in the package. Drill the holes, using a 3/8" drill, and scrape the paint from around the holes on the engine side of the dash to insure a good ground connection as there is no other ground connection for this receiver. Make sure that all tubes and the vibrator are pushed well down in their sockets and that all the grid clips are properly in place on the top caps of their respective tubes. If a six-volt storage battery is available, check the receiver for normal operation before permanently installing it on the car. The antenna lead and control unit may be temporarily connected for this test. Insert the two receiver mounting studs in the back of the receiver case with the "burred" threads nearest the receiver to make sure that these studs do not enter the case far enough to cause damage to the receiver parts. Install the receiver, using the drilling template as a spacer between the dash and the receiver case. Install the two shakeproof washers over the chassis mounting studs. Then tighten the mounting nuts to insure that the receiver case shall be thoroughly grounded to the dash. =Antenna Lead--= Attach the black antenna lead to the car antenna and plug the connector on the antenna lead into the receiver chassis as shown in the Installation Diagrams. Ground the pigtail of the antenna lead shield to a convenient body bolt. Keep antenna lead out of engine compartment to avoid possibility of ignition interference being picked up by the lead-in. =Speaker--= See Instructions in speaker package. =Remote Control Unit--= See Instructions in remote control package. CONTROL UNIT ADJUSTMENT The volume control and station selector shafts are AUTOMATICALLY adjusted as follows: 1. Insert control cables in their respective bushings on the case (volume control is upper bushing when receiver is installed in the car), until they seat themselves and then tighten the set screws. 2. Turn the station selector knob to the right (clockwise) until it stops--then turn the knob counter-clockwise until it stops. The dial is now logged. 3. Turn the volume control knob clockwise until the knob turns hard. The volume control is now on full. =Eliminating Motor Interference--= Connect the ammeter condenser to the spring clip at the end of the wire containing the fuse holder by means of the self-threading screw on the side of the spring clip. Ground the other terminal of the condenser at any convenient point. Install the generator condenser on the generator side of the generator cut-out as shown in the Diagram of Connections. DO NOT connect the flexible lead to the field terminal of the generator. Remove the center distributor lead and insert the distributor suppressor in its place. Then plug the distributor lead into the suppressor. =Adjusting Delco Syncro-Tuning--= Turn the receiver on. Tune-in a radio station which logs between 55 and 65 on the dial and gives the radio a signal BARELY AUDIBLE in the speaker WITH the VOLUME control FULL ON. A small snap button cap is located in the end of the receiver case beside the antenna lead connection. Remove the snap button cap by prying with a small screw driver. By means of a small screw driver inserted in the hole which was covered by the small cap, adjust the Delco Syncro-Tuning condenser unit for maximum output in the speaker. Remaining on same station, readjust station selector for maximum volume and readjust the Delco Syncro-Tuning Condenser unit for maximum output. No further adjustment of this unit will be necessary as the receiver is now adjusted for best operation with your car antenna. Replace the snap button cap. OPERATION =To Turn On Receiver--= Some control units have a small knob located below the center of the dial. If your receiver is equipped with this type of control push this small knob in as far as it will go. Other control units have a combination on-off switch and volume control knob. To turn on this type of control turn the knob clockwise until the switch clicks and the dial is illuminated. =Volume Control--= Turning the volume control knob toward the right increases the output of the receiver and turning it toward the left reduces the output. =How To Tune The Receiver--= Turn the volume control knob approximately half way to the right. Rotate the station selector knob slowly until a station is heard. Tune this station in until the minimum amount of background noise is heard. Increase or decrease the volume to the desired level by adjusting the volume control knob. Careful tuning will result in better tone quality from all stations. If the program being received is from a powerful local station local interference may be practically eliminated by turning the sensitivity control to the LOCAL position. You then will get the best possible reproduction of that station's program. [Illustration: =INSTALLATION DIAGRAMS= GROUND TO DASH CASE SPACER AND DRILLING TEMPLATE DASH AMMETER CLIP AMMETER CONDENSER NO. 1209333 ANTENNA LEAD (BLACK) VOLUME CONTROL BUSHING FUSE TO COIL REMOVE SNAP BUTTON CAP TO ADJUST ANTENNA COMPENSATING CONDENSER STATION SELECTOR BUSHING DISTRIBUTOR SUPPRESSOR NO. 1207818 GROUND TO CAR POWER LEAD SENSITIVITY CONTROL TONE CONTROL ARMATURE TERMINAL DO NOT CONNECT TO FIELD TERMINAL VOLUME CONTROL STATION SELECTOR GENERATOR CONDENSER 1849014 SUGGESTED GENERATOR CONDENSER CONNECTIONS ON-OFF SWITCH] =Sensitivity Control--= The sensitivity control is located on the lower, left front corner of the receiver case and when turned to the LOCAL position it decreases the sensitivity of the receiver sufficiently to greatly reduce interference from street cars, electric signs, X-Ray machines, electrical machinery, power lines, etc. It will also eliminate interference from weak stations. When the control is turned to the DISTANCE position the receiver is allowed to operate at maximum sensitivity. =Tone Control--= The tone control is located on the lower, right front corner of the receiver case. This control is to be adjusted at the operator's will. However, most experienced operators prefer to set it for maximum treble response when the car is operated at high speeds. =To Turn Off The Receiver--= If the control head has a key knob in the center pull the knob out until it clicks into the off position and the receiver ceases to operate. If you wish to lock the receiver, pull the knob all the way out of the control unit and carry it with you. If you are using the type of control unit which has a combination on-off switch and volume control knob turn the knob to the left until the receiver ceases to operate. SERVICE Should your receiver fail to operate, first check the fuse located in the fuse holder in the ammeter cable. If you wish to remove your tubes and vibrator for test purposes, their location is indicated below. [Illustration: _Tube Complement_ 2 Type 6D6 1 Type 6A7 1 Type 6B7 1 Type 6B5 1 Type 84] Any further service work on your receiver should be referred to a competent radio service station. When at home call your local DEALER................................. AT..................................... TELEPHONE.............................. DATE RADIO INSTALLED................... PRINCIPAL BROADCAST STATIONS[A] ARRANGED ALPHABETICALLY BY CITIES =Abilene, Kans.= KFBI 1050 =Albuquerque, N. M.= KOB 1180 =Alexandria, Va.= WJSV 1460 =Amarillo, Tex.= KGRS 1410 WDAG 1410 =Ames, Iowa= WOI 640 =Asheville, N. C.= WWNC 570 =Atlanta, Ga.= WSB 740 =Atlantic City, N. J.= WPG 1100 =Baltimore, Md.= WBAL 1060 =Belle Plaine (Moose Jaw), Sask.= CJRM 540 =Billings, Mont.= KGHL 950 =Birmingham, Ala.= WAPI 1140 =Bismarck, N. D.= KFYR 550 =Boise, Idaho= KIDO 1350 =Boston, Mass.= WBZ 990 WBZA 990 WEEI 590 WHDH 830 WNAC 1230 =Brookings, S. D.= KFDY 550 =Brooklyn, N. Y.= WBBR 1300 =Buffalo, N. Y.= WBEN 900 WGR 550 WKWB 1480 =Chattanooga, Tenn.= WDOD 1280 =Chicago, Ill.= WBBM 770 WCFL 970 WENR 870 WGN 720 WJJD 1130 WLS 870 WMAQ 670 WMBI 1080 KYW 1020 =Charlotte, N. C.= WBT 1080 =Cincinnati, Ohio= WLW 700 =Clay Center, Nebr.= KMMJ 740 =Cleveland, Ohio= WHK 1390 WTAM 1070 =Colorado Springs, Col.= KVOR 1270 =Council Bluffs, Ia.= KOIL 1260 =Covington, Ky.= WCKY 1490 =Dallas, Tex.= KRLD 1040 WFAA 800 =Denver, Colo.= KLZ 560 KOA 830 =Des Moines, Ia.= WOC 1000 =Detroit, Mich.= WWJ 920 WJR 750 WXYZ 1240 =Eau Claire, Wis.= WTAQ 1330 =Edmonton, Alta.= CJCA 730 =Elmira, N. Y.= WESG 1040 =Fargo, N. D.= WDAY 940 =Fayetteville, Ark.= KUOA 1260 =Fort Wayne, Ind.= WOWO 1160 =Fort Worth, Tex.= KTAT 1240 WBAP 800 =Gainesville, Fla.= WRUF 830 =Gary, Ind.= WIND 560 =Great Falls, Mont.= KFBB 1280 =Harrisburg, Pa.= WBAK 1430 =Hartford, Conn.= WDRC 1330 WTIC 1060 =Havana, Cuba= CMCQ 780 CMK 730 CMW 590 CMX 890 =Hollywood, Cal.= KFWB 950 =Honolulu, Hawaii= KGU 750 =Hot Springs National Park, Ark.= KTHS 1040 =Houston, Tex.= KPRC 920 =Indianapolis, Ind.= WFBM 1230 =Jackson, Miss.= WJDX 1270 =Jacksonville, Fla.= WJAX 900 =Kalamazoo, Mich.= WKZO 590 =Kansas City, Mo.= KMBC 950 WDAF 610 WOQ 1300 =Knoxville, Tenn.= WNOX 560 =La Crosse, Wis.= WKBH 1380 =La Prairie (Montreal), Que.= CRCM 910 =Lawrence, Kans.= WREN 1220 =Lansing, Mich.= WKAR 1040 =Lincoln, Nebr.= KFAB 770 =Little Rock, Ark.= KLRA 1390 =Long Beach, Cal.= KFOX 1250 KGER 1360 =Los Angeles, Cal.= KECA 1430 KFAC 1300 KFI 640 KHJ 900 KNX 1050 =Louisville, Ky.= WAVE 940 WHAS 820 =Lulu Island (Vancouver Island), B. C.= CRCV 1100 =Madison, Wis.= WHA 940 =Mexico City, Mexico= XEB 1030 XEN 711 XEW 910 XFG 638 XFI 818 XEFO 940 XETR 610 =Miami Beach, Fla.= WMBF 1300 =Miami, Fla.= WIOD 1300 WQAM 560 =Milwaukee, Wis.= WTMJ 620 =Minneapolis, Minn.= WCCO 810 WDGY 1180 WLB 1250 WRHM 1250 =Montreal, Que.= CKAC 730 =Nashville, Tenn.= WLAC 1470 WSM 650 =Newark, N. J.= WAAM 1250 WNEW 1250 WOR 710 =New Orleans, La.= WDSU 1250 WWL 850 =New York, N. Y.= WABC 860 WEAF 660 WFAB 1300 WJZ 760 WLWL 1100 WOV 1130 =Norfolk, Nebr.= WJAG 1060 =Northfield, Minn.= WCAL 1250 =Oakland, Cal.= KLX 880 =Oklahoma, Okla.= WKY 900 KOMA 1480 =Omaha, Nebr.= WOW 590 =Ottawa, Ont.= CRCO 880 =Philadelphia, Pa.= WCAU 1170 =Piedras Negras, Coahuila= XEPN 585 =Pittsburgh, Pa.= KDKA 980 WCAE 1220 WJAS 1290 =Portland, Me.= WCSH 940 =Portland, Ore.= KEX 1180 KGW 620 KOIN 940 =Pullman, Wash.= KWSC 1220 =Raleigh, N. C.= WFTF 680 =Reading, Pa.= WEEU 830 =Reynosa, Tamaulipas= XEAW 956 =Richmond, Va.= WRVA 1110 =Rochester, N. Y.= WHAM 1150 =Salt Lake City, Utah= KDYL 1290 KSL 1130 =San Antonio, Tex.= KTSA 1290 WOAI 1190 =San Diego, Cal.= KFSD 600 KGB 1330 =San Francisco, Cal.= KFRC 610 KGO 790 KPO 680 KTAB 560 KYA 1230 =San Juan, Puerto Rico= WKAQ 1240 =Schenectady, N. Y.= WGY 790 =Seattle, Wash.= KJR 970 KOL 1270 KOMO 920 KTW 1220 =Shreveport, La.= KTBS 1450 KWKH 850 =Sioux City, Iowa= KSCJ 1330 =Sioux Falls, S. D.= KSOO 1110 =Spokane, Wash.= KFPY 1340 KGA 1470 KHQ 590 =Stevens Point, Wis.= WLBL 900 =St. Joseph, Mo.= KFEQ 680 =St. Louis, Mo.= KMOX 1090 KWK 1350 WEW 760 =St. Paul, Minn.= KSTP 1460 =Strathmore (Calgary), Alta.= CFCN 1030 =Superior, Wis.= WEBC 1290 =Syracuse, N. Y.= WFBL 1360 =Tallmadge, Ohio= WADC 1320 =Tampa, Fla.= WDAE 1220 =Toledo, Ohio= WSPD 1340 =Topeka, Kans.= WIBW 580 =Toronto, Ont.= CRCT 960 =Tulsa, Okla.= KVOO 1140 =Twp. of Kingston (Toronto), Ont.= CFRB 690 =Villa Acuna, Coahuila= XER 735 =Wheeling, W. Va.= WWVA 1160 =Wichita, Kans.= KFH 1300 =Windsor, Ont.= CKLW 840 =Winnipeg, Man.= CKY 910 =Yankton, S. D.= WNAX 570 =York, Pa.= WORK 1000 =Zion, Ill.= WCBD 1080 [A] Stations listed include only those of 1000 watts power (or higher). NOTE: Numbers following call letters indicate approximate dial setting. WARRANTY (_This Warranty not applicable outside U.S.A._) Your Delco Radio Carries the Same Guarantee As Your Car "The manufacturer warrants each new radio receiving set manufactured by it to be free from defects in material and workmanship under normal use and service, its obligation under this warranty being limited to making good at its factory or designated Branches any part or parts thereof which shall within ninety (90) days or 4,000 miles whichever expires first, after installation of such auto radio receiving set for the original purchaser, be returned to it with transportation charges prepaid and which its examination shall disclose to its satisfaction to have been thus defective; this warranty being expressly in lieu of all other warranties expressed or implied and of all other obligations or liabilities on its part, and the manufacturer neither assumes nor authorizes any other person to assume for it any other liability in connection with the sale of its products." "This warranty shall not apply to any radio receiving set which shall have been repaired or altered outside manufacturer's authorized Service Stations in any way so as in the judgment of the manufacturer to affect its stability, or on parts not made or authorized by the manufacturer have been used for replacement or other purposes, nor which has been subject to misuse, negligence, or accident." UNITED MOTORS SERVICE, INC. DETROIT, MICH. Form No. 2095 Printed in U. S. A. =========================================================================== =========================================================================== Delco Rebuilt 1 55-D Delcotron Generator 1845985 Rebuilt by Delco-Remy. Division of General Motors, Anderson, Indiana, 46011 Made in U.S.A. 275829 Printed in U.S.A. 12-17-71 DR-7086 INSTALLING SERVICE DELCOTRON® GENERATOR 1. DISCONNECT GROUNDED CABLE FROM BATTERY. 2. If it is necessary to rotate the slip ring end frame to match the unit being replaced, remove the thru bolts, separate frames just far enough to rotate to desired position and replace thru bolts. CAUTION: Separating the end frame too far causes the brushes to drop on to the greased shaft. If this happens, remove end frame completely, clean brushes with clean cloth, reassemble springs and brushes retaining them in position with a pin (toothpick). Remove pin after frames are reassembled. WHEN INSTALLING DELCOTRON® GENERATOR WITH INTEGRAL REGULATOR, THE SLIP RING END FRAME MOUNTING BRACKET IS NOT NEEDED. 3. When reusing the original fan, pulley and collar, tighten shaft nut to 40 to 60 lb. ft. If torque wrench is not available, insert a 5/16" hex wrench in end of shaft and tighten nut until the spring washer is just flattened. 4. Install Delcotron® Generator and check belt tension, mounting bolt tightness and make sure all electrical connections are clean and secure. IMPORTANT: Never operate the Delcotron® Generator without being connected to the battery. Never attempt to polarize the Delcotron® Generator. DELCO-REMY Division of General Motors Anderson, Indiana BPI