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FM  STEREO  ADAPTER 

TAPE  RECORDER 

FM  ANTENNA 

MAGNETIC  PICKUP 

INPUT 

CRYSTAL  PICKUP 

OUTPUT 

RP  CORD  SYSTEM  JACK 

RIGHT  SPEAKER 

LEFT  SPEAKER 

STEREO 

HEADPHONE 

A.  C  CONVENIENCE 

ANTENNA 

GROUND 

TO 
POWER 

SOURCE 

I. 

FEATURES  OF  THE 

W-38 

1. 

General  Stereophonic  Amplifier 

It  is  a  general  purpose  stereo  amplifier  capable  of  FM  and  shortwave 
reception  enabling  you  to  enjoy  all  types  of  broadcasts  and  recordings. 

2. 

Sufficient  Output 

Output  is 

14 

watts  per  channel,  or 

28 

watts  in  total. 

It  is  possible, 

therefore,  to  reproduce  richly  the  most  powerful  tones  of  an  orchestra. 

3. 

Direct  Current 

Hum  is  entirely  eliminated  with  a  DC  filament  supply  system  adopted 
to  the  equalizer  circuit. 

4. 

Loudness  Control 

No  matter  how  low  you  keep  the  volume,  you  can  enjoy  "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  connection)  as 
well  as  an  ordinary  terminal.  Accordingly,  you  can  freely  enjoy  high 
fidelity  recording  and  reproduction  with  any  kind  of  tape  recorder. 

7. 

Magic  Eye 

You  can  select  radio  stations  quickly  and  accurately  with  the  magic  eye. 

8. 

Mode·rn·istic  Design 

The  pleasing  modernistic  design  not  seen  in  previous  amplifiers  will 
further  brighten  the  atmosphere  of  your  room. 

9. 

Foster  Seeley  FM  Detector 

Since  the  FM  detector  is  a  Foster  Seeley  discriminator,  you  can  enjoy 
stable  and  superb  high  fidelity  reception. 

(DIAGRAM  1) 

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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