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SERIAL NUMBER

14635013

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

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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