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REFER TO PICTORIAL DIAGRAM #3.

26(  )    Connect  one  end  of  the  6800-ohm  (blue,  gray,  red),

1-watt  resistor  to  lug  #2  (square  symbol)  of  the

filter  capacitor.  Connect  the  other  end  to  lug  #3

(triangle  symbol)  of  the  capacitor. The  resistor  leads

should be cut to permit mounting exactly as is shown

in the diagram.

27(  )    Connect  one  end  of  the  50-ohm,  5-watt  resistor  to

lug  #1  (

curved  line  symbol

)  of  the  filter  capacitor.

Connect  the  other  end  to  lug  #2  (

square  symbol

)

of  the  capacitor  (S).  Check  to  be  sure  that  all  four

of  the  connections  at  lug  #2  have  been  soldered,

and  that  excess  wire  has  been  trimmed  away  ,and

cannot touch the chassis or adjacent lugs.

28(  )  Connect one end of the 95-ohm, 5-watt resistor to lug

#4  (  no  symbol)  of  the  filter  capacitor.  Connect  the

other end to chassis-mounting lug B of the capacitor.

29(  )    Connect  one  end  of  a  5"  wire  to  chassis-mounting

lug  B  of  the  filter  capacitor  (S).  Connect  the  other

end to lug  #3 of the 5-lug terminal strip (S).

30(  )   The  silicon  rectifier  diodes  supplied  with  the  kit  may

be of any of the three types shown in the illustration;

although  differing  in  external  appearance,  the  three

types  are  elettrically  equivalent.

Connect  the  CATHODE  lead  of  one

of  the  rectifier  diodes  to  lug    #1

(curved  line  symbol)  of  the  filter

capacitor.  Connect  the  ANODE  lead

to  lug  #2  of  the    5-lug  terminal  strip

(S).  IMPORTANT:  Arrange  the

diode  leads  exactly  as  shown  in  the

pictorial  diagram.  When  soldering,

hold a pliers on the lead between the diode body and

the solder connection to avoid application of  excessive

heat to the diode.

31(  )    Connect  the  CATHODE  lead  of  the  other  rectifier

diode  to  lug  #1  (curved  line  symbol)  of  the  filter

capacitor  (S).  Connect  the  other  lead  to  lug  #1  of

the  5-lug  terminal  strip  (S).  Observe  the  same  pre-

cautions  when  soldering  as  in  the  preceding  step.

32(  ) Connect one end of a 4" wire to lug C of the RIGHT

3-screw  terminal  strip  (S).  Connect  the  other  end

to  chassis-mounting  lug  A  of  the  filter  capacitor.

33(  )  Connect  end  of  a  9"  wire  to  lug  C  of  the  LEFT

3-screw  terminal  strip  (S).  Connect  the  other  end

to  chassis-mounting  lug  A  of  the  filter  capacitor

(S).

34(  )    Connect  one  end  of  a  4"  wire  to  lug  '#3  (triangle

symbol) of the filter capacitor. Connect the other end

to  eyelet  #7  of  the  RIGHT  circuit  board  (S).

NOTE  :  Before  making  a  connection  to  an  aye-

let  on  the  circuit  board,  tin  the  end  of  the  wire

by  heating  it  with  the  soldering  iron  and  touch-

ing  solder  to  it.  The  wire  end  is  tinned  when

the  solder  melts  and  runs  onto  the  wire.  The

eyelets  on  the  board  already  have  solder  in

them.  To  solder  to  the  eyelet,  heat  it  with  the

soldering  iron  and  insert  the  end  of  the  wire

when the solder in the eyelet flows. Remove the

iron  and  hold  the  wire  in  place  until  the  solder

hardens.

35(  )    Connect  one  end  of  a  5"  wire  to  lug  #4  (no  symbol)

of  the  filter  capacitor.  Connect  the  other  end  to  pin

#3 of V-5 on the RIGHT circuit board.

36(  )    Prepare  a  1¾"  piece  of  wire  by  stripping  ½"  of  insu-

lation  from  one  end,  and  ¼"  from  the  other  end.

Push  the  longer  bare  end  through  pin  #3  of  V-6  on

the  RIGHT  circuit  board  (S),  and  bend  it  around

to  connect  to  pin  #4  of  V-6  also.  Connect  the  other

end to pin #3 of  V-5 (S).

37(  ) Connect one end of a 4½" wire one to eyelet #4 of the

RIGHT  circuit  board  (S).  Connect  the  other  end

to eyelet #10 (S).

38(    )  Twist  together  a  2½"  and  a  4"  wire  so  that  one  pair

of  end  is  even.  Connect  the  matching  end  to  pins

#4  and  #5  of  V-5  on  the  RIGHT  circuit  board.

Connect  the  shorter  of  the  remaining  end  to  eyelet

#5  (S),  and  the  longer  remaining  end  to  eyelet  #3

(S).

39(  )  Twist  together  a  pair  of  2½"  wires.  Connect  one

pair  of  ends  to  pin  #4  (S)  and  pin  #5  (S)  of  V-5

on  the  RIGHT  circuit  board.  Connect  the  other  ends

to pin #4 (S) and pin #5 (S) of V-6.

40(  )  Connect one end of a 7" wire  to lug 16 of the RIGHT

3-screw  terminal  strip  (S).  Connect  the  other  end

to  eyelet  #6  of  the  RIGHT  circuit  board  (S).

41(  )  Connect  one  end  of  a  1¼"  wire  to  pin  #9  of  V-6

on  the  RIGHT  circuit  board  (S).  Connect  the  other

end to eyelet #11 (S).

42(    )    Connect  one  end  of  a  1"  bare  wire  to  pin  #2  of V-6

on  the  RIGHT  circuit  board  (S).  Connect  the  other

end to eyelet #9 (S).

43(  )  Connect one end of a 1" bare wire to pin #2 of  V-5

on  the  RIGHT  circuit  board  (S).  Connect  the  other

end to eyelet  #8 (S).

44  (  )  Connect  one  end  of  a  1"  wire  to  the  long  lug  of  the

RIGHT  input  socket  (S).  Connect  the  other  end

to eyelet #1 (S).

45(  )    Connect  one  end  of  a  1½"  wire  to  the  short  lug  of

the  RIGHT  input  socket  (S).  Connect  the  other  end

to eyelet #2 (S).

46(  )    The  next  group  of  steps  are  performed  on  the  LEFT

circuit  board.  Connect  one  end  of  a  12"  wire  to  lug

#3  (triangle  symbol)  of  the  filter  capacitor  (S).

Connect  the  other  end  to  eyelet  #7  of  the  LEFT

circuit board (S).

47(  )  Connect  one  end  of  a  10"  wire  to  lug  #4  (no  sym-

bol)  of  the  filter  capacitor  (S).  Connect  the  other

end  to  pin  #3  of  V-2  on  the  LEFT  circuit  board.

48(  )  Strip  ½"  insulation  from  one  end  of  a  1¾"  piece

of  wire;  strip  about  ¼"  from  the  other  end.  Push  the

longer  bare  end  through  pin  #3  of  V-3  on  the  LEFT

circuit    board  (S),  and  then  bend    it  back  to  connect

it  to  pin  #4  of  V-3.  Connect  the  other  end  to  pin

#3 of V-2 (S).

49(  )  Connect  one  end  of  a  4½"  wire  to  eyelet  #4  of  the

LEFT  circuit  board  (S).  Connect  the  other  end  to

eyelet #10 (S).

50(  )  Twist  together  a  2½"  and  a  4",  so  that  one  pair

of  ends  is  even.  Connect  the  matching  ends  to  pins

#4  and  #5  of  V-2  on  the  LEFT  circuit  board.  Con-

nect  the  shorter  of  remaining  ends  to  eyelet  #5

(S), and the longer end to eyelet '#3 (S).

51  (  ) Twist  a  pair  of  2½"  wires  together.  Connect  one  pair

of  ends  to  pin  #4  (S)  and  pin  #5  (S)  of  V-2  on

the    LEFT  circuit  board  ,  and  the  other  ends  to  pin

#4 (S) and pin #5 (S) of V-3.

52(  )  Connect  one  end  of  5"  wire  to  lug  16  of  the  LEFT

3-screw  terminal  strip  (S).  Connect  the  other  end

to eyelet #6 of the LEFT circuit board (S).

Содержание Stereo 35

Страница 1: ...This number must be men tioned in all communica tions concerning Dynakit INSTRUCTIONS FOR THE ASSEMBLY AND USE OF DYNAKIT STEREO 35 POWER AMPLIFIER 3 9 1 6 P O W E L T O N A V E P H I L A D E L P H I A 4 P A Price 1 00 046414 ...

Страница 2: ...sumption Tube Complements Size Shipping Weight 35 watts continuous 45 watts IHFM Music Power both channels 1db from 10 cps to 40 000 cps 20 cps to 20 000 cps without exceeding 1 distortion within 1 db of 17 5 watts each channel Less than 1 at 17 5 watts each channel Less than 0 1 at average listening levels Inaudible more than 80 db below rated output 1 volt input for 17 5 watts out put each chann...

Страница 3: ...enefits The feedback loop is unconditionally stable under all load arrangements so that the Stereo 35 is suitable for use with any loudspeaker including electrostatic types The values of components selected for the Stereo 35 have been carefully determined to be certain that the operating conditions for each stage have been set at the center of the optimum range The use of close tolerance parts pro...

Страница 4: ...point to point without strain on terminals or components The lead dress that is the manner in which the wiring is arranged as it goes from one point to another should follow that shown in the pictorial diagram as closely as possible Care must be exercised to see that uninsulated wires do not touch each other and cannot do so through vibration or sagging unless of course they are connected to the s...

Страница 5: ...be closest to the circuit board 7 Mount the filter capacitor in the cutout provided First look at the symbols stamped in the plastic at the base of each connecting lug These must be oriented as shown in the pictorial diagram Insert the four mounting lugs of the capacitor in the slots and then twist each of the mounting lugs one quarter turn with a pliers while holding the capacitor snugly against ...

Страница 6: ... to chassis mounting lug A of the filter capacitor 6 The four remaining power transformer leads are con nected next Cut the green and green and white leads to 6 each and twist them together as shown in the diagram Connect the green and white lead to pin 5 of V 3 on the LEFT circuit board 7 Connect the green power transformer lead to pin 4 of V 3 IMPORTANT Because the tube sockets lugs are small an...

Страница 7: ...d white lead to pin 9 of V 5 S 20 Twist together the blue and green leads from the RIGHT output transformer Connect the blue lead to pin 7 of V 6 on the RIGHT circuit board S 21 Connect the green lead to pin 9 of V 6 Be sure that exposed wire or stray filaments from them cannot touch other wires or terminals or cause a short circuit to the chassis hardware 22 Cut the red lead from the RIGHT output...

Страница 8: ... Connect one end of a 5 wire to lug 4 no symbol of the filter capacitor Connect the other end to pin 3 of V 5 on the RIGHT circuit board 36 Prepare a 1 piece of wire by stripping of insu lation from one end and from the other end Push the longer bare end through pin 3 of V 6 on the RIGHT circuit board S and bend it around to connect to pin 4 of V 6 also Connect the other end to pin 3 of V 5 S 37 C...

Страница 9: ...ssis and then lowering the cover onto the chassis The three pieces are fastened together by four sheet metal screws through the sides of the chassis The four rubber feet are installed by pressing them into the corner holes of the bottom plate The cover should be used whenever the amplifier is operated where it may be touched accidentally not only do the tubes become quite hot in operation but some...

Страница 10: ...f a third loud speaker playing a combination of the left and right channel material may improve the spatial effect consider ably Those listeners who feel a need for a third loudspeaker can try this arrangement without need for a third amplifier or a special output on their preamplifier by using the follow ing method A monophonic extension loudspeaker may be connected to a stereo system in the same...

Страница 11: ...nnel alone examine the solder connections on that side Filament glow is normal but if the plate the large metal area of a tube tends to glow red either the tube or its associated circuitry is faulty It all four of the output tubes glow in this manner there is a short circuit in either the cathode pin 3 of any 6BQ5 or filament pin 4 and 5 or at lug 4 of the filter capacitor The voltage chart printe...

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