Dynakit MArk IV Instructions For Assembling Download Page 1 | Manualshive

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Summary of Contents for MArk IV

Page 1: ...UCTIONS FOR ASSEMBLING DVNAKIT MARK IV SERIAL NUMBER 8 0 f J Jt This number must be men tioned in all communica tions concerning Dynakit PATENTED 3060 JEFFERSON STREET PHILADELPHIA PA 19121 Price 1 00 1 2658 ...

Page 2: ...within 1 db of 40 watts Sensitivity 1 3 volts rms input for 40 watts output Hum and Noise Inaudible 90 db below 40 watts choke filtering Damping Fador 15 i Output Impedances 4 8 and 16 ohms Tubes EL 34 2 7199 GZ 34 selenium rectifier Finish bright nickel chassis vinyl coated charcoal brown cover Special Features Matched tubes Dyna Biaset for non critical adjustment preamp power socket fuse post on...

Page 3: ... by specified color coding Tools required for easy assembly of your Dynaldt are a soldering iron small tip or soldering gun long nose pliers screwdriver and wire cutters Al though not essential a low cost wire stripper and cutter of the type which can be purchased for less than a dollar win greatly facilitate cutting and strip ping the various leads in the kit c ood soldering technique is valuable...

Page 4: ...ring job 1 j 12 MECHANICAL ASSEMBLY Pictorial Diagrams for Location of Parts Mount the four octal sockets with 4 screws nuts and lockwashers the small est screws supplied Note that there is a small slot or keyway in the center hole of each socket be sure in each instance that this keyway is properly oriented as shown in the pictorial diagrams Insert the screws from the top of the chassis and mount...

Page 5: ...30 31 v Connect the other end to ground lug at the five lug strip S Twist together a pair of 5 wires and connect one end of one to pin 2 of V2 Connect the corresponding end of the other to pin 7 of V2 Connect one of the other ends to pin 2 of V3 and con nect the last one to pin 7 of V3 Twist together a 51 h and a 4 wire so that one pair of ends are uneven Connect the even pair of ends to pins 1 S ...

Page 6: ...ure for etting the bias voltage is to measure the voltage of a fresh type D cell and note the meter indication Then insert the positive meter probe in the pin 8 hole of the preamp takeoff socket Note that outside the chassis the pin numbers are counted counter clockwise from the key The nega tive meter probe should be applied to the chassis Plug in the GZ 34 15AR4 rectifier tube and in about ten s...

Page 7: ...t each of the grids is not exactly the same one of the 1 mfd coupling capacitors on the printed cir cuit board may be at fault If one tube has no negative voltage at pin 5 an open circuit exists between the tube and bias supply If no meter is available and one tube glows inter changing the two tubes will help indicate the fault If the same tube glows in the other socket the tube is at fault If the...

Page 8: ...ipping should be by Railway Express prepaid repaired kits will be returned by Railway Express collect for shipping and service charges unless these are prepaid Parcel post is not a safe method of ship ment for assembled units Dyna Co assumes no responsibility or liability for damages or injuries sustained in assembly or opera tion of the DYNAKIT MARK IV VOliAGE CHARi VI rectifler GZ34 V2 V3 El34 V...

Page 9: ...II 5 I I I I I 3 4 MARK IV PICTO i O l 0 2 j j I I I I I 1 2 I I w Z V I l e z 0 l U ...

Page 10: ...RIAL DIAGRAMS I I I I 7 I I I 8 I I I 9 I I I I I I 10 11 I I I J 6 12 DYNACO PC 4 ...

Page 11: ...5 I I I I I t 4 FOUR SCREW TERMINAL MARK IV PICT I I I 3 BlK BR OR VEL 4 if I I I I I 2 SWITCH t I I 1 I I I FUSE POST o ...

Page 12: ... I I I I I I I I I I I I 1 PREAMP POWER SOCKET 12 INPUT SOCKET CUTOUT FOR PRINTED CIRCUIT BOARD PC 4 H 10 V3 9 8 7 RIAL DIAGRAMS ...

Page 13: ...OR 8 BRN 4 BLK COM YEL 16 i A 470 MARK IV SCHEI J IK I I I 390PF I 7 I 8 47K 9 7199 6 47 620 270K 2 6 3 105M 5MFD 4701 2 330K 3 I I I N O I I PC 4 J L _ I I I I I I I I I I MATCHED PAIRS 4 ...

Page 14: ...22K POWER TAKE OFF SOCKET 4 5 EYELETS ON CIRCUIT BOARD TO II YEL 50 16 PA 135 YEL 8 E RED 4 RED BlK TO 8 TO 6 COM 1 I 30 I r I I RED SCHEMATIC 5 ...

Page 15: ...QUAD CAPACITOR J I PA 135 BIAS POTENTIOMETER PC 4 PRINTED CIRCUIT ASSEMBLY ...

Page 16: ...or factory wired and tested PAS 3 The world famous Dynakit Stereo Preamplifier designed to deliver the finest possible music reproduction The choice of broadcast and recording professionals as well as discriminating listeners on every continent A complete master control unit with near perfect freedom from hum noise and distortion Precision equalization networks guarantee accurate low and high freq...

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