Radio Kits, Inc. 120L Schematic

Get a print!
Price: $8.00
In stock
Product Information:
Model:120L
Manufacturer:Radio Kits, Inc.

Schematics Content:

Please note: this content is a computer-generated interpretation of the above schematic and is provided only to help assist you in locating this schematic. For the actual text, please consult the schematic above. Thank you.

Page 1:

KITS PAGE 21-Z
_NNEUNE NS m__N_&E OWN mq H3332 M==_ ?; _NN N_N_NE_`_"aWwN
|p*;"O_w _ENNNQ Y $:_NE:`~'NN *N QWBBQNN `_mN(R) Mus FQQFW QQQNWSQNQN _:g__`N&_b_\_; _E `_:`:N~m_m_pw NN; "zOH___D?__U
W _>> _ _ ; J A__N>|h V 5 0_2 ' ERE W
BEE (C)
PAM 1 is ms USZEEME E_ CON Wg _W_____O> OMNN I "QA _*O mah; M338 Z0
MFNIWMH N5 mE:___ MNSOQ Zo HMB EOE HEHNH _EDCI
DNHIOCH "E WESQ 3332 Z0 MED HBV*
wg _: _wgm?ldgg S $0 U4 zO "WMD Ham Qmlmzmmn
(C)Johr1 F. Rider

Page 2:

PA E 21- RADIO. KITS
MODEL 120
ALIGNMENT OF RECEIVER
Equipment Required
SIGNAL GDNERAIOR; CAPABLE OF SUPPLYING MODULATED FREQUENCII-:s BETWEEN 455 kc/s AND 20 Mc/s.
ourpur INnIcAmgi A mon RESISTANCE A.c. VOLTMETER on A Powlsn ouI~1>U'r METER on ANY o\m>v1~ INDICATING :vs_
REMOVE THE CHASSIS FROM THE CABINET BY UNSCREWING THE FOUR SCREWS TIIO OF WHICH ARE ON THE REAR CHASSIS
APRON AND TWO ON THE DIAL POINTER SUPPORT BRACKET THE TWO LEADS THAT CONNECT THE LOUDSPEAKER TO THE
CHASSIS ARE LONG ENOUGH TO PERMIT REMOVAL OF THE CHASSIS WITHOUT DISTURBING TIE SPEAKER
OUTPUT INDICATOR IF A POWER OUTPUT METER IS USED
ADJUST IT FOR FOUR OHMS IMPEDANCE AND CONNECT IT
ACROSS SPEAKER VOICE COIL IF AN A C VOLTMETER IS USED IT MAY BE CONNECTED ACROSS THE VOICE COIL HUT A
MORE SATISFACTDRY INDICATION WILL BE OBTAINED IF IT IS CONNECTED BETWEEN THE PLATE PRONG OF THE OUTPUT
TUBE AND THE CHASSIS BEING SURE TO USE A 05 mfd
TO THE PLATE PRONG REGULATE THE OUTPUT ATTENUATOR THE SIGNAL GENERATOR UNTIL A MID SCALE READING IS
OBTAINED ON A LOW SCALE OF THE OUTPUT METER KEEP THE RECEIVER VOLUME CONTROL IN MAXIMUM OUTPUT POSI
TION WHEN OUTPUT INDICATION INCREASES REGULATE SIGNAL GENERATOR ATTENUATOR T0 RESTORE THE ORIGINAL IN
DICATION THIS REDUCES A V C ACTION AND PERMITS MORE ACCURATE ADJUSTMENTS
SIGNAL GENERATOR WHEN ADJUSTING THE I F SLUGS CONNECT THE SIGNAL GENERATOR GROUND LEAD '10 B FOR
L OTHER ADJUSTMENTS CONNECT THIS LEAD 'IO THE GROUND WIRE (BLACK) IN REAR OF CHASSIS
USE A NON METALLIC TOOL FOR THE ADJUSTMENT OF THE I F SLUGS ALWAYS BE SURE T0 USE THE SPECIFIED CAPA
CITOR OR RESISTOR IN SERIES WITH THE SIGNAL GENERATOR OUTPUT LEAD
CAPACITOR IN SERIES WITH THE LEAD WHICH IS CONNECTED
Allgnment Procedure
SIGNAL GENERATOR RECEIVER
RANGE TUNI NG EE
OPERATION
STEP OUTPUT CONNECTION TO RECEIVER FREQUENCY SWITCH
CAPACINR NOTES ADJUST IN STATED ORDER
TO ]4Q7 CONTROL GRID THROUGH
1 MFD CAPACITOR
MAX
CAP
ADJUST I F TRANSFORMER
SLUGS TO MAXIMUM OUTPUT
TO ANTENNA CONTACT TLROUGH 200
MED CAPACITOR MICA
CAP
C12 FOR MAXIMUM OUTPUT
TO ANTENNA CONTACT THROUGH 200
MED CAPACITOR MICA
C8 FOR MAXIMUM OUTPUT
T`O ANTENNA CONTACT THROUGH 200
MIFD CAPACITOR MICA
OUTPUT WHILE ROCKING
GANG REPEAT C12,C8 C13
THROUGH 400 OHM
'IO ANTENNA LEAD
CARBON
CAP
C 1 9 FOR MAX I MUM OUTPUT
THROUGH 400 OHM
T`O ANTENNA LEAD
CARBON
RESISTOR
Mos
C9 FOR MAXIMUM OUTPUT
THROUGH 400 OHM
'10 ANTENNA LEAD
CARBON
RESISTOR
MIN
CAP
C15 FOR MAXIMUM OUTPUT
THROUGH 400 OHM
TO ANTENNA LEAD
CARBON
RESISTOR
C10 FOR MAXIMUM OUTPUT
CHECK TRACKING AT 6 5 MC/S
NOTE
NOTE
NOTE
SIGNAL GENERATOR GROUND LEAD TO B AS EXPLAINED ABOVE
TUNE GANG T0 SIGNAL GENERATOR
ADJUST OSCILLATOR TRIMMER T`0 MAXIMUM CAPACITY POSITION (CLOCKWISE) TURN SCREW COUNTLR-CLOCK
WISE UNTIL SECOND PEAK IS OBTAINED THIS WILL BE THE SMALLER CAPACITANCE POSITION
CHECK TRACKING AT 2 MC/S
_ 600 kc/s M.w. 600 MC/5 VB" PADDER C13 Fon MAXIMUM
? John F. Rider

Page 3:

VKLTS PAGE 21-9
MODEL 12
53 |=||3;; C28 win
|=ncN1 E ?7 seem 1 H R1
Vt: ?;-.._ 9 \ R' "___ REAR .. ,
'C9 5>>35 MMF.}'|R|>>|N|5n 11| 47K ,5 w_ O Q .41 0 9? I:?;"EEN *G* 3 2 , coumEnc|1oc>>?.w.as| '|
CIE ,022 MF. 5ggV. RIO 330 .5 T5 T7 _,_Y,_.
|c2o xoo Mun msn ma 41o|< .5 w. |(R) Q (R) T5
c25 ,| MF. 4oov. mp sorrow 9 (R) 5,551 U gg, 8
I 021 ,o| Mr. soo v. 4N1.co|L an COIL QW 4 'g:_u5? 1 |?,?f?? WWE GMD Yo
C25 25 MF' 25 V' . . ='|0 f 5 5 'x' mv: 1 mans
(C)JOhf1 F. Rider

Page 4:

PA E 21-10 RADIO KITS _ ___ __ ___ ____ __i _
MODEL 120
' LOCATION or PARTS '
REPLACEMENT PARTS
wus! onnsnxNc ALWAYS GIVE DESCRIPTION or PART, com: 111111111111 AND 110021. NUMBER or RECEIVER. Q
CAPACITORS
c1-cz 2 GANG VARIABLE oormsrsnn
cs 5-35 nun ANT. 11m0m11
C12 5-35 :ma osc. TRIMMER
c1s .0023 nfd. MICA
C22 250 mfa. CERAMIC
C26 500 mm. CERAMIC
can 40 nm. 150 v
150 v BALLAST nnsxsmn
200 v BALLAST nsslsmn
C0 ILS AND TRANSFORMERS
L1 ANTENNA COIL ASSEMBLY
L2 (sw BAND 02)
L4 ANTENNA CGIL ASSEMBLY
L5 (MW / SW Band #1)
L7 osc. COIL ASSE BLY
(sw BAND #2)
L9 osc. COIL ASSEMBLY
(Nw / sw BAND #1)
T1 lst 1.r. ASSEMBLY
T2 2nd 1.1. ASSEMBLY
BACK
MISCELLANEOUS PARTS
CABINET
DIAL
DIAL
DIAL
DIAL
DIAL
DIAL
DIAL
KNOB
KNOB
LINE
GLASS
LAMP #47
LIGHT SOCKET
POINTER
DIFFUSION SCREEN
DIFFUSION SPRING
POINTER DRIVE CORD
DRIVE CORD SPRING
WITH DOT
PLAIN
' CORD
OCTAL SOCKET
PHONOGRAPH CONNECTOR
SPEAKER
SPEAKER BAFFLE ASSEMBLY
SPEAKER GRILLE CIDTH
CONTROL AND PHONO
SWITCH
Rider

Page 5:

REGAL PAGE 21-I
_ time mu
Battery Operation
For operation on batteries it is necessary that the line cord EXTE NAL ANTENNA-_->>~__ a ""P"" PLUG
plug be inserted into the changeover plate (see Fig. 2). The THMNAL I /Egggwgmcazzomc
receiver may now be turned on by rotating the on-off switch to ww ANTENNA--- |?- I \ 0 iN BL/-'fo&l?i%?iT pm PLUG
right and advancing volume control knob. (See Fig, 1). Loo MTE C __ 0 "`f,?l?E??<?%?3Cp,EURUG,,f*2%"?)
Electric Operation __ "CW "C \_ 4"
To operate this set on AC, open the rear of the case by pull~ ,mg `=,_____ __,UNE CORDJOR AUM
ing it back at the top. Then remove the plug from the plate ' A C" Q ?p""T'O" 'LL VOLIAGES-
where it has been inserted, (See Fig. 2) and pull the cord all TWO4LvOLT_>~ J;
Electric Operation 210-230 Volts AC
For operation on the above voltage and current, the line
switch MUST BE IN THE 210-250V, AC POSITION, and
the pin plug must always be in the BLACK socket. (See 3
(C)John F. Rider

Please note: we carry a wide range of products which will fulfill the specifications above. Please use our search function or browse our products to find what you need!