Webcor 2020 Series User manual

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FAST
FORWARD
REWIND
tEVEt
OUTPUT
RECEPTACLE SPEED
SELECTOR
INDICAT
NORMALI
INDICATOR
\ TONE
coNTROL
PtAY MONITOR
swtTcH
BUTTON
Figure 1
GENERAL INFORMATION
The Webcor 2020 Series Tape Recorders are designed for twin-track, two speed operation.
The operating speeds are either 3 3/4 or 7 L/2 inches per second. The Webcor is designed to
recordandplayback two tracks of material on standard width recording tape, which doubles the
recording and playing time with no loss of frequency response or quality. Recordings can be
made from a radio, television receiver, or phonograph, in addition to those made directly from
the microphone.
The Webcor 2020 Series are mechanically and electricatly alike. The only difference being
in the cabinet, or carrying case used. The portable model of this series, zlz}risavailable in
Fboty-(E-2020) or in.Tan (T-2020). The table models are available in Walnut (2OZl), Mahogany
(2022), Blonde (2023) or Beige (2024).
Webcor 2020 Series have two tape speeds, 7 l/2" and 3 3/4" per second. Using both tracks ,
the recording times are as follows:
ffiv
:;:,]: ;#
1''
Size ReeI
5tt
7"
Speed
3-3/4"
t hour
2 hours
Speed
7 -112',"
l/2 hour
t hour
The 2020 Series are designed to operate on 60 cycle, 105-120 volts, AC supply only.
Manufactured by:
Webcor
5610 Bloomingdale Ave.
Chicago 39, Illinois
INPUT
RECEPTACLEJffi!
swlTcH SAFErv
LEVER
JS'tYffi%b*3u"o*
-o.Nr_olf TeCbno BUTTON
This moleriol compiled ond published by
sAmS & co., lNc., INDIANAPOIlS,
Copyright 1956 . All Rights Reserved
0ATE I - 56
INDIANA
srT 304 r0rDER 12
HOWARD lA/.

FUNCTIONS OF THE CONTROLS
On-Off -Volume Control-
1. Turning this control clockwise a quarter of a
turn you apply operating voltage to the recorder.
2. Thetube filaments andthe pilot indicator lamp
should light.
3. Additional clockwise rotation wilt increase the
signal strength.
Tone-Monitor Control-
1. The top knob is the tone control. Turning it
clockwise accentuates bass during playback only.
2. The bottom knob is the monitor switch. Turning
the knob clockwise turns the monitor on during re-
cording. Turning the knob counterclockwise disconnects
the monitor during recording.
Record Button-
l"Release the safety lock lever (5a) before
pressing "Record Button".
2. Pressing the "Record Button" (51) actuates
pressure roller (46) against capstan shaft (12).
3. Relieves brake drag (148).
4. Bringserasemagnetand its pressure pad (28)
against opposite sides of the tape.
Page 2
Figure 2
5. Locks rewind lever {13) in the center position .
Play Button-
1. Pressing "Play Button" causes the same action
described in items 1 through 5 under "Record Button" .
2. The erase magnet pressure pad engages the
tape, the erase magnet is not brought into contact
with the tape.
3. Switchingactionoccurs which feeds the signal
picked up by the recording head through a series of
amplifiers.
Stop Button-
t. Pressingthe "Stop Button" releases the pres-
sure roller.
2. Releases the recording head pads from their
position against the recording head.
3" Releases the motor bushing from its position
against the capstan rim.
4. Releases the erase magnet and its pressure
pad from against the capstan rim.
Speed Selector-
1. Pressing down on this button raises the cap-
stan shaft to engage the roller for 7 L/2 T. p. S. oper-
ation.
2. Turningthe button slightly to the left and per-
mitting it to rise, will Iower the capstan shaft to en-
gage the pressure roller for 3 -3/4 T. P. S. operation .

Figure 3
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Edit Key-
1. Pulling forward on this lever will release the
pressure roller from the capstan shaft.
2. The motor is not disengaged from the capstan
shaft when the editkey is actuatednor does any electri-
cal switching take place.
Fast-Rewind - Forward Lever -
L. When the stop button is depressed, the fast
"Rewind-Forward" Iever may be moved from its po-
sition, either to the Ieft or right.
2. When the lever is moved to the right the belt
engages the drum of the take up reel causing an approx_
imate 20-1 ratio transport.
3. Moving the lever to the left causes a similar
action on the supply reel.
OPERATING INSTRUCTIONS
-
1. PIug the AC cord into a convenient waII re-
ceptacle of the proper rating.
2. Place the reel containing the tape on the left
or supply spindle.
3. Placean empty reel on the right or "take-up"
spindle.
4. Unwindabout 12 to 15 inches of tape and guide
it into the tape slot. (Be sure the shiny side of the tape
faces the front of the cabinet).
5. Take the end of the tape and wrap it around
the hub of the empty reel. Bring the end of the tape
through one of the slots on the reel hub and revolve
the reel several times.
To Make A Recording-
1. After the recording tape has been properly
threaded, turn the "On-Off" switch and "Volume Con-
trol" to the rronrr position.
2. Press the "Speed Selector" knob (9) down for
7 -L/2I. P. S. operation or turn slightly to the left and
permit the button to raise for 3-3/4 I. p. S.
3. To record, pull the f tRecord Safety Lever" (b4)
downward, and at the same time push down firmly on
the "Record" button.
4. Adjust the "Volume" control so that the "Over -
load Indicator" barely lights on the recording peaks
and so that the "Normal Indicator" blinks constanily
during recording.
To Record From Microphone-
l.Insertthemicrophone plug into the t'Input Re-
ceptacle" located on the left side panel.
2. Follow the instructions under the heading of
"To Make A Recording".
3. Best results will be obtained if the microphone
iskept closer to the source of sound than to any walls
inthe recordingareato prevent echos of the sounds as
they rebound off the walls.
Page 3

Figure 4
NOTE: Themicrophone should be kept at least three
feet away from the loudspeaker during record -
ing.
To Record From Radio Or Television Receiver-
Recordings can be made from a radio or television
receiver by placing the microphone near the loud-
speakerl however, this type of recording may not be
satisfactory as other sounds may be recorded on the
tape. A superior quality recording can be made by use
of Radio Cord Attachment (part No. 2927). Connect
attachment cord as follows:
1. Connect the cord clipsacross the voice coil
terminals on the radio or television speaker.
2. Insert the cord plug into the "Input Receptaclel
Iocated on the left side panel of the recorder.
3. Set the radio or television receiver for soft
playingthenoperate the Webcor controls as described
under "To Make A Recording".
To Record Frgm Phonograph-
tr,. Connect the alligator clips of the Radio Cord
Attachment to the ends of the pickup leads of the phono-
graphandthen insert the cord plug into the "Input Re-
ceptacle". Proceed with the recordingas described urp
der "To Make A Recording".
NOTE: Should a hum develop from the above connect-
ions, reversethe cord clips on the pickup
leadg.
Page 4
To Rewinci-
When the stop button is depressed, the "Fast-
Rewind-Forward" lever (13) may be moved from its
center position. To "Rewind" move the lever to the
left. When the rewinding is completed move the mec-
hanism control knob (52) into "Stop" position and al-
low the tape to come to a complete stop before moving
the mechanism control knob to any other function.
Twin Track Operation-
Webcor 2020 Series are twin-track units, which
record on approximatety half the width of the tape at
one time.
1. To record a second program on the same tape,
Iift the full reel from the right hand spindle, turn it
over, and place it on the left hand spindle.
2. Place the empty reel on the right hand spindlel
properlythread the tape, and continue your recording
as described under "To Make A Recording".
NOTE: Since it is impossible to edit and splice one
track without affecting the other, recordings
which are to be edited should be limited to
one track only.
To Play A Recording-
1 . With the tape properly threaded, turn the mec -
hanism control knob (51) to the "Play" position.
suit. 2. Adjust the "Volume" and "Tone" controls to

3. Be sure the "Speed
right sideof the top panel, is
cording was made,
Fast Forward-
If it is desired to reach a recording near the end
of a tape in a few seconds, turn mechanism control knob
(13) to the "Fast-Forward" position. For the 'tFast-
Forward" position the control should be turned to the
right. When the lever is moved to the right you have
approximately 20-1 ratio transport.
ADJUSTMENTS
Clutch Adjustments-
The nut (79) permits adjustment of the corres-
ponding clutch assembly. It should be adjusted so that
the take up reel absorbs the slack tape during the re-
cord and play operations. The clutch pad (?0) is 10b
oil saturated to permit a smooth take up and slipping
action when constant tension of the tape is attained .
Excessive tension may cause waver and tape squeal.
Insufficient tension may cause tape looping ahead of
the take-up reel, and a jerking action.
Erase Adjustment-
1. Insert a reel of recorded tape and press the
"Record" button.
2. Check to see if the surface of the tape makes
good contact with the surface of the shoe face. If it
does not, adjust screw (21A).
3. Checkto see that the top of the tape is exactly
positionedatthetop of the scribed diagonal line on the
Figure 5
Selector", Iocated on the shoe face. If it is not, adjust the threaded tape guide
in the speed that the re- (15) and the locking nut (14).
4. Turn the recorder "On".
5. Turn the volume control to minimum (full
counterclockwise).
6. Play the reel of tape through with the recorder
in the "Record" position.
?. Press the "Stop" button and rewind the tape.
8. Turn the volume control to maximum (full
clockwise).
9. Setthe recorder to the t'Play" position. If the
adjustments are correct, nothing should be heard as the
tape is played back. No audio output indicates proper
erase.
PIay/ Record Head Adjustment-
It is very important that play-record head (36)
be lined up perfectly with the tape, If it is not, low
output, loss of high frequencies or track overlap may
result.
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IMPORTANT: The headhas been aligned and locked
in place at time of manufacture and
should require no further adjustment,
unless it becomes necessaryto install
a new head.
Toadjust, makeatape recording of a 6000 cycle
signal on a good unit. Place this on the unit that the
head is to be aligned on. Connect an output meter or AC
voltmeter across the speaker voice coil. Play the 6000
Page 5

A PHOTOFACT "EXPLODED" VIE\Y
@ Howrrd W. Samr & Co., lnc' 1956
Figure 6A Exploded view of Farts Above Baseplate
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cycletape, rockplay-record head (36) back and forth ,
loosening two screws (34) alternately until a maximum
reading is obtained on the output meter or AC volt-
meter, This adjustment should be made carefully to
avoid damage to the head mechanism.
TROUBLES AND REMEDIES
Motor Fails To Operate-
1. Motor defective eleetrically.
2. Bent or binding motor shaft.
3. Thrust bearing screw (105) too tight.
Capg.fan Shaft Fails 'fo Rotate In "PIayI And ,'Re-
cordt', But Motor Operates-
1. Broken or disconnected spring (10?).
2. Binding motor shaft plate assembly (9a).
Push Buttons Fail To Remain Depressed-
1. Improper operation of push button lock plate.
2. Bent push button.
EraseAnd Record Pads Fail To Move Forward Prop-
1. Broken or disconnected tension spring (29).
2. Binding Pad Assembly (28 or 40).
Pressure Roller Fails To Shaft In
2. Improperly adjusted brake pad assembly (148).
3. Broken or loose belt (142).
4. Broken or disconnected spring (128).
Poor Or No Recording And Playback Of Tape-
1. Improper recording head alignment.
2. Worn recording head pressure pad (40).
3. Broken or disconnected tension spring (2g).
Failure To Erase-
l.Improper adjustment of erase magnet or tape
guide (15) (See "Erase Adjustment").
2. Worn erase pad (28).
3. Broken or disconnected tension spring (25).
Monitor Fails To Operate-
1. Loose or misadjusted switch arm (65).
2. Broken or disconnected tension spring on right
section of monitor switch.
Failure To Fast Forward-
1. Broken or loose belt (?2).
2. Improper clutch action due to glazed or worn
cork disc (?6).
3. Faulty pulley, cam, and idler link assembly
(r24).
Operation Of Speed Control Does Not Change-
Tape Speed-
1. Binding action in raising lever and stud assem-
bly (81 and 82).
2. Loose or misadjusted screw on raising lever
and stud assembly (81 and 82).
Wow-Waver-
1. Worn or pitted rubber rim drive on the cap-
stan flywheel (66).
2.A bent capstan shaft (12) can cause erratic
speed. The surface of the shaft in contact with the
tape must be kept iree of oil, adhesive and iron oxide
particles.
3. A worn, pitted, or dirty pressure roller (46)
will cause poor tape transport.
MAINTENANCE
Cleaning The Play-Record Head-
The play-record head is subject to an accumu-
lation of tape coating residue which is worn off the
tapeas itpassesthe head. This should be periodically
removed since it may cause faint recordings and poor
playback. Wipe off the record and head contact surfaces
carefully with a clean cloth. If dirt is caked or hard
and will not come off with a dry cloth, dampen the cloth
slightly with carbon tetraehloride.
1. Broken or disconnected tension spring (44) .
2. Binding roller assembly (a1).
Record Safety Lever Fails To Return Forward And
l.Disconnected or broken spring (55).
2. Loose or misadjusted bell crank (26).
Tale-Up Reel Fails To Rotate In Record Or play-
back-
1. Brake pad assembly (148) improperly ad-
justed.
2. Loose or broken belts (?2 or 142).
3. Clutch assembly (consisting of 69, ?0, 71,74,
75,17,78 and ?9) improperly adjusted or faulty.
4. Binding or bent supply reel spindle (1).
Supply Reel Fails To Yield Tape In Record Or PIay-
1. Binding or bent supply reel spindle (1).
2" Improperly adjusted brake pads (148).
Failure To Fast Rewind-
1. Loose set screw (123) onpulley cam,
link aseembly (12a); faulty assembly.
Page 10
and idler