Hallicrafters S-108 Operating And Service Instructions
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- Operating and service manual (14 pages) ,
- Operating and service instructions (14 pages) ,
- Operating and service instructions (13 pages)
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Summary of Contents for Hallicrafters S-108
- Page 1 unieatF OPE€ATING VICE IONS s.loe lcrefie...
- Page 2 (the bandspread dial) is specifically calibrated you have a right to expect from any Hallicrafters "Precision Built" product. Your receiver has an the 80, 40, 20, 15 and 10 meter bands.
- Page 3 SHEET HALLICRAFTERS MODEL R-48 SPEAKER The Model R-48 speaker is designed for use with Hallicrafters ceivers which require the use of an external speaker. However, the speaker may be used with any receiver or amplifier system having a 3.2 ohm nominal output impedance and an output not exceeding five watts of power.
- Page 4 ADDENDUM MODEL S-108 After the Instruction Manual for the S- 108 was published. various electric modifications were made to improve performance. See illustration below for wiring modification of the audio output stage. It is suggested that the following corrections be noted...
- Page 5 SECTION INSTALLATION 2-1. UNPACKING. foot length of antennawire supplied with the receiver. Simply attach one end of this wire to terminal ' 'A1", After unpacking the receiver, examine it closely connect the jumper link between terminals "A2" for damage which may have occurred in transit.
- Page 6 MODEL s - iOb hllicn!ters SELECTOR VOLUME TONE NOISE PHONES 092-304539 Figure 4. Receiver Operating Controls. link connects between terminals "A2" "G". transmitter to the receiver may be accomplished with ground wire may improve reception when using an un— a double-pole, double-throw antenna changeover relay...
- Page 7 lected has too strong a signal, excessive background MAIN TUNING DIAL. hiss or distortion may be present. If this undesirable effect is produced, it can be greatly reduced by turning The main tuning or left-hand dial is oper- SENSITIVITY control in the counterclockwise dir- ated by the TUNING...
- Page 8 BANDSPREAD control in a The Hallicrafters Co. reserves the privilege counterclockwise direction. making revisions in current production of equipment 3-11. STANDBY-RECEIVE SWITCH. assumes no obligation incorporate...
- Page 9 NCVE. MAEN TUN*NG BAND SPREAD GANGS SHOWN 3 TURNS FULLY CLOSEO_ 31/2 TURNS AROUNO SHAFT —304 AROUND SHAFT 5. Dial Cord Stringing Diagram. fig ure SECTION ALIGNMENT 5-1. GENERAL. Non- metallic alignment tool. Standard RTMA dummy antenna shown in Fig. This receiver has been carefully...
- Page 10 5-4, ALIGNMENT PROCEDURE. 2 OO MMF The local oscihator frequency is higher than the 2011B signal frequency on bands 1, 2, and 3, and lower than the signal frequency on band 4. RF alignment can be made with chassis in cabi- 40 on net.
- Page 11 SERVICE PARTS Schematic Sc he mat Hall icrafters Schematic Hallicrafters Hallie rafters Description Part Number Symbol Descript i071 Part Number Sy mbol Description Part Nurnber RESISTORS (CONT) CAPACITORS TUBES DIAL LAMPS 4-80 mmf. ; Mica Trimmer 044- 500K ohm, variable;...
- Page 12 6.5AC ALL VOLTAGESARE DC UNLESS OTHEAWSE SPECIFIED CC VOLTAGESSHOWN VACUUM ruaE VOLTMETER. NOISE LIMITER CONNECTION SHOWN F OR THIS tERMmAc ONLY WHEN RECEIVE •NR'—Nor ßEADINGGENERALLY MEANINGLESS} SPACEPROVIDED FOR SERVICE MEYER REAOLNOS. APRON v'Ew OF CHASSIS Figure Model Voltage Chart. s-108...
- Page 13 RF AMP. CONVERTER 1ST IF AMP 2ND IF AMP AUDIO AMP AUDIO OUTPUT 6SG7 R4 6SA7 6SK7 6SK7 1/2 6SC7 6K6-GT .0022 .02 MFD 1 -PWR. OFF HIGH '5.000 4- LOW 4-80 PWR OFF-TONE (REAR VIEWED FROM VIEWED 47,000 FRONT FROM 47.000 10.000...
- Page 14 NOTES...
- Page 15 "The Hallicrafter's Company warrants each new radio product manu- fuctured by it to befree from defective material and workmanshipand agreesto remedyany such defect or to furnish a new part in exchange for any part of any unit of its manufacturewhich under normal instat- lution, useand servicediscloses s uch defect,provided the unil is delicered by the owner to our authorized radio dealer, wholesaler.from whom purchased,or, authorizedservicecenter.intact, for examination, with all...
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