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VI. 

SPECIFICATIONS  OF  THE  W-38 

Tubes  used: 

Frequency  Range: 

Sensi ti vi ty: 

Image  Ratio: 

Gain: 

Tone  Control: 

Rumble  Filter: 

Loudness  Control: 

Output  Power: 

Frequency  Response: 

Equalizer: 

Residual  Noise: 

Special  circuits: 

Input  Terminals: 

Dimensions: 

Weight: 

19  tubes  and  1  diode-6BE6  x  2,  6BA6  x  3, 

6AQ8 

2,  6AU6 

1,  6AL5 

1,  12AX7 

3, 

6BM8  x  4,  5AR4  x  1,  6DA5  (Magic  Eye)  x  2, 

OA79  (Diode)  x  1. 

FM;  80 -108Mc. 

AM;  535 -1605Kc. 

SW;  3.8- 11M c. 

FM;  2.6uV /94Mc, 

AM;  6uV /lMc. 
SW;  6u V /8Mc. 

FM;  30dB/94Mc. 
AM;  46dB/1Mc. 

Mag;  3mV. 

X'tal;  36mV. 

(input  required  for  S/N  20dB 

quieting) 

AUX;  225mV.  (input  required  for  9  watt  output) 

SOc/s 

f+ 

10.5dB 

lOKc 

{

+8dB 

1.-

8dB 

-8.5dB 

50c/s;  - 8dB. 

20c/s;  - 15dB. 

50c/s; 

15dB. 

10Kc; 

4dB. 

(Volume  control  at  - 30dB) 

14  watts  per  channel,  (undistorted  output  10 
watts),  or  28  watts  in  total. 

(Harmonic  Distortion  less  than  2%) 

Within  20c/s  - 50Kc  ±0.5dB  (output  at  500mW) 

RIAA 

MAG;  30mV. 

AUX;  4mV.  (volume  maximum,  tone  control  flat) 

FM-AFC,  Loudness  Control,  Rumble  Filter,  D.C. 
filament  supply  Equalizer  Circuit, 

Stereo 

Headphone  Jack. 

MAG,  X'TAL,  AUX,  TAPE  REC,  MPX  IN,  FM 

OUT,  RP  (Recording 

Playback)  CORD  SOCKET. 

5.6"  high  x  18"  wide  x  14.2"  deep. 

30 lbs. 

11 

www.hifiengine.com

Содержание W-38

Страница 1: ...INSTALLATION AND OPERATING MANUAL DELUXE STEREOPHONIC AMPLIFIER AM AM FM SW Tuner Combination MODEL W 38 DISTRIBUTOR www hifiengine com ...

Страница 2: ...joy on the spot listening by adjusting the Loudness Control 5 Rumble Filter Irritating low level motor rumbling disturbances can be filtered out with the Rumble Filter 6 RP Cord Tape Recorder Terminal The W 38 is equipped with a special socket of the kind agreed to among the major tape recorder manufacturers a RP cord terminal by which recording and reproduction are possible using only one connect...

Страница 3: ... speaker midway between the two making the connections as shown in Diagram 2 By supplementing the volume in this way you can enjoy a very natural sterephonic reproduction RIGHT SPEAKER IMP SELECT LEFT SPEAKER RIGHT SP PHASE POSITION OF SPEAKER PHASE CENTER DIAGRAM 2 so won VOL CONT LEFT LEFT SPEAKER 3rd SPEAKER DIAGRAM 3 RIGHT SPEAKER If you decide to use three speakers first adjust the phasing of...

Страница 4: ...MINAL DIAGRAM 4 DIAGRAM 5 IMPORTANT Do not place the antenna line near fluorescent lighting which causes disturbance in the form of a buzz Antenna for Listening to a FM Broadcast Connect the FM antenna to G and FM as shown in Diagram 1 Turn the horizontal part of the T shaped ant nna towards the direction in which you can receive optimum reception and then pin both ends to either the ceiling or wa...

Страница 5: ...h a RP cord you can reproduce stereo recording merely by plugging the cord into the socket provided for this purpose Recording with a tape recorder Connect the lead lines from the LINE IMPUT terminals of the tape recorder to the terminals marked TAPE REC In the case of monaural recording either one top or bottom of the terminals may be used Playback of tape recorder Connect the lead line from the ...

Страница 6: ...lockwise to boost 6 TREBLE CONTROL The treble tones of both the left and right speakers can be adjusted simultaneously Turn clockwise to boost 7 BALANCE CONTROL This knob is for the purpose of balancing the left and right speakers Turn counter clockwise to boost the volume of the left speaker and clockwise that of the right speaker 8 FM STABILIZER FM AFC OFF Select FM station with switch at this p...

Страница 7: ...ereo and shortwave broadcasts 14 LEFT CHANNEL MAGIC EYE When you select the station with the TUNING 1 knob see that the magic eye expands to its maximum 15 RIGHT CHANNEL MAGIC EYE When you select the station with the TUNING 2 knob see that the magic eye expands to its maximum 16 SOCKET FOR TAPE RECORDER WITH RP CORD 17 RIGHT SPEAKER TERMINAL DIAGRAM 8 18 IMPEDANCE SWITCH Switch to correspond with ...

Страница 8: ...ectricity is on 2 VOLUME CONTROL 3 LOUDNESS CONTROL 4 RUMBLE FILTER 5 BASS CONTROL 6 TREBLE CONTROL 7 BALANCE CONTROL 9 SPEAKER SWITCH 2 RECORD PLAYBACK WITH STEREO PICKUP 10 PHONO 11 STEREO or REV 3 PLAYBACK OF TAPE RECORDER 10 AUX 11 STEREO OR REV Stereo reproduction LEFT When the left input terminal is used for monaural listening 4 RECORDING WITH A TAPE RECORDER The exact sounds coming out the ...

Страница 9: ...M2 11 STEREO or REV 12 FM Station Selection 13 AM Station Selection 8 Select FM station at OFF position and listen at ON 11 STEREO HEADPHONE USE 21 Plug in headphone jack 9 OFF To eliminate speaker sound ON To bring out the speaker sound DIAGRAM 9 V POINTERS 1 It takes approximately 50 seconds for the sound to emerge from the recorder after switching on the power A direct current flows into the fi...

Страница 10: ...t hum 4 HOWLING When the record player is placed directly on top of the speaker case or close by it the sound from the speaker travels to the player pickup needle and causes howling It then becomes impossible to raise either the volume or boost the bass tones Adjusting the amplifier will not help since it is not responsible for the howling In order to avoid howling keep the player case and speaker...

Страница 11: ...0dB 94Mc AM 46dB 1Mc Mag 3mV X tal 36mV input required for S N 20dB quieting AUX 225mV input required for 9 watt output SOc s f 10 5dB lOKc 8dB 1 8dB 8 5dB 50c s 8dB 20c s 15dB 50c s 15dB 10Kc 4dB Volume control at 30dB 14 watts per channel undistorted output 10 watts or 28 watts in total Harmonic Distortion less than 2 Within 20c s 50Kc 0 5dB output at 500mW RIAA MAG 30mV AUX 4mV volume maximum t...

Страница 12: ...www hifiengine com ...

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