General Electric Co. 165 Schematic

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Manufacturer:General Electric Co. (Old RCA)

Schematics Content:

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Page 1:

MODEL _226
CABINET Material ...._.,_,.,_,__,... Plastic (brown)
Height .......... ....,,.,.,....,., 8 %in_
Width ._.. 1 ,_.....,.,, .......... 1 3% in.
Depth ._,..,.........,...,,_,....... 8 in.
ELECTRICAL Voltage ..,,.. ,._.,,. ....,.,.,., 1 0 5-125
RATING Frequency. _ _ ..,,.,., 50-60 cycles or DC
Wattage. ,__,.,.,.,.. 26 at 117 volts input
orrnume Standard Broadcast ,.,..._,_,_ 540-1600 kc MODEL 226 '
FREQUENCIES I>>F Amplifier .,.,...,....,....,.,., 455 kc
/-\ rowek Undistorted ..._._ _._.__,_,,4,.,_ _ 1 watt AUGNMENT CHART
OUTPUT Maximum, . ,.,.,......,. ..,.,. l .75 watts
- - Connect Test Test Radio Adjust Trimmers
Step _ _ Osc_ Dial _
Oscillator to. sewn Semin for Maximum
iouosrslixsn Type ,.__,___,,,,.,_._.__,_ Alniee V PM 5 3
Outside Cone Diameter _ ..,. _ _ _SM inches
Voice Coil Impedance at 400 Cycles, _ 3.2 ohms |_F ALIGNMENT
_ ' 1 v3, 1zsK7 grid 455 KC __ _ _ C9 and cs of
was >,irr ==??rr>-~- C7 and C6 ?f nr"
(11) Pilot Lamp, _ _ _ _ _G-E Mazda Nu. 47 (PE Bg?m firms r-ffrHrrrf?rrrr?r. T2
GENERAL INFORMATION 'C' "'YY"'"`Y """ ';_"'{_1i`
The Model 226 is a Five-Lube (plus rectifier tube) table model 3 V2' USA7 grid 455 KC ,___4_ Recheck adjust-
arc or d-c superheterodyne Standard AM Broadcast receiver. It (pin g)_ in se,-ies mgng of C9, C8'
is equipped with an eflilcient built-in antenna loop which is c0n>> with .05 mfd_ C7, C6, for maxi.
nccted to an R-F amplifier stage providing increased gain. This mum
receiver employs automatic volume control, beam power output
and an oversize permanent magnet loudspeaker. LF AUGNMENY
EQUIPMENI "Gyms" _ coupled to radio capacity trimmer
1. Test oscillator, tone amplitude-modulated. 'OOP ?1A, CIB
2, A-C output meter, 1% volts full scale.
3, .05 mfd., paper capacitor. ,___ A__,_f__ _Y.;_____-_-1-_-_
4, Insulated screwdriver, A
5. Coupling loop for test oscillator (see text). 5 Inductively 1500 KC 1500 KC C2, ,-.f g,-gmmgr
6. Isolation power transformer. Coupled to ,BL-no
The alignment steps are given in the table form of the Align~
/_" $e;tgC;1art, Adjustment trimmers are shown in the illustration STAGE GA|NS AND VOLTAGE CHECKS
1. The chassis is removed from the cabinet with the antenna stag? SEIU TTQCHSUFCWCUKS by VSCUUYH fulre \f?IU"4;_f" ?\' Similar
loop and back attached and the speaker leads reconnected_ fnEURaS\-\l'\"E dC'/ICC may PC "Sed *Q ?b=?k CIFCUW P" ?\'m5"C? and
2_ An isolation t,-angfo,-mer ghouid be uggd for the ,-gceiver isolate trouble._ The gain values listed may have tolerances of 20
power source when aligning nr servicing AC-Dc receivers, to per Cent- Rqadrrrss arf: taken wrth low Srsrral mprrf S0 that AVC
prevent short circuiting of equipment and shock hazard. 15 "?f EURff??f'V?~
3. The output meter is connected across the terminals of the ' I F GAIN
loudspeaker voice coil. ' ` _ ,
4, The receiver volume control should be turned to maximum USA7 Grid to IZSK7 Gr1d_ _ _ . _________ @
and test oscillator signal output attenuated during alignment to USK7 Grrd to IZSQ7 Dwde lair? - - - >> - - ~ - >> @
develop not more than 1% volts output meter reading at the 2 AUDIO GAIN
oiispgzrei-f alignment, the high side of the signal generator _Input of 0-15 v?1r= at 400 Cydes across v?lrm7= Control (R6)
output cable should be connected through a .05 mid. paper ea- with control sealat rnaiamumgwill ele\;el01>_aP1;r0>rrrr\Hr= y /2 watt
pacitor to the points indicated in the Alignment Chart, The low output across C E spea er 'mice Cm "mms '
side of the output cable is connected to the receiver chassis. 3_ g?C|LLA-|-QR sg", |;|A?
6. To align the oscillator and t-f trimmers, the signal gen- - -
erator output is inductively coupled to the radio loop, Ll, by D'Ce:c?lEa5;l?e;:l?g3g kicross the oscmator grid leak (R4)
/` connecting a four-turn, six-inch diameter loop of bell wire acrow avemg ` `
its output terminals and then locating the loop about one foot 4_ -rug; g??|(5y |>>|N VQUAGQ5
gsgtfys?32121?23522tig:;o;(;i?r:c`_;;-e;;?;s::x1;;T;_rTo:;lax; Fig. 5 shows voltages from tube pins to B -. Voltage retadings
respect to the radio loop antenna should not be changed during 'ggfrifrigirfeggatiy from those specified may help kwa nc C ec we
o John F. Rider

Page 2:

,,,, ,, Mug The rectrfter assembly RF}\ 004 \s o
Model 1000 M IS srmrlar to Models 1002 F
1003 M and 1004 B and uses a m fm radro
Gamble Slroqmo 43 7661 43 7852
Model 43 7661 rs the same as Model 43 7660
except that the 7661 uses a blond cabmet
Model 43 7852 1s thc same as Model 43 7851
except that xt uses a blond cabmet
Gamble Skoqmc 43 8101 165 197
Model 165 rs the same as Model 94RA3l
43 8115A Model 197 rs the same as Model
94RA3l 43 8ll5B Model 197U rs the same
as Model 94RA3l 43 8116A Model 43 8101
as electrically the same as Models 94RA31 43
8115A 811513 and 811QA
Model 43 9341A is the same as Model
Gamble skoqma 941154-43-81291
94RA4 43 arson a4nA44as15nn
Model 94RA4 43-8129A rs the sarne as
and 94RA4 43 Sl30B are the same as Models
4?e8130A and 43 8130B respectively Model
94RA4 43 8131A rs the same as Model 43
8131A Model 94RA4 43 813113 rs the same
as Model 43 813113 Model 94RA4>-43 8132A
rs the same as Model 94RA4 43 8131A except
that rt employs a maroon cabxnet
Gamble Slrogmo 94RA33 43 8135
The 94RA33 43 B135 rs the same as Models
94RA33 43 81309: and 94R./X33-43 813lC ex
cept for the rhtlferences mentioned below The
physrcal drtterence rs the cabmet larger drum
on the tunrng gang speaker bracket dral glass
dial bracket and power cord stram relref The
parts lrst for Model 94RA33 43 S135 rs the
same as that for the 8130C and 8131C except
for the followmg parts
Tunmg gang
Dnl bracket
our gnu
cn>.n=< walnut
General Electric P15
To further clarrfy the rdentrty of the three
spmdles for the record speeds for which they
are to be used the followrng descrrptrons have
been added to the Parts Lrst for record
changer P15 RMU 060 Spmdle offset
sprndle for 7 lnch 33 1/3 rpm records RM\
162 Sprndle for 10 or 12 mch 33 1/3 or 78 rpm
records RMX 163 Spmdle for 7 mch 45 rpm
General Electnc 145
In late productrons, resrstors R13 and R14
have been eomlxmed mto one tapped resrstor,
RZ5A and R2513 'lhrs new resistor ls
mounted rn place of R14 The catalogue num
ber for R25 rs RRW 047 R2sA .S 1000
ohms and should be wrred m place of R14
RZSB rs 1300 ohms and should be wrred
\n place of R13
Late productron Models 145 have an auto
matxc shutoff when the cabmet front rs
closed New parts for these models are mter
changeable and wrll he carrred m replacement
stock rn place of the ongmal early productron
rtems as shown below
Escut ron replaces RDE054
Knob and knob clrp replaces RDK 149
Cabmer from cover repllces RAO055
Nmnzplxfe md auch wrth 2 amd mount
for maroon or wlnre cihrnets
Nnmeplnte and arch with 3 :md mount
for maroon or whlre Clhrntu
Name lim and citclt with 5 stud mmm!
for town cnbmer
Lead fdentt/icutron /or cermmc calmcrtor
sectron ceramrc capacrtor catalogue number
RCW 3015 rs added to and tn capaertor
termmal xdentrflcatron of C9 C10 C11 and
General Electric S4 $5
Late productxon receivers mcorporate a hel
rcal sprrng rn the clock mechanrsm whrch pro
vldes a more posmve tnp action to the swxtch
contact assembly when operating the sleep
control Farlure of swxtch contacts to open
may he due to the mcomplete travel oi the
sleep control gear segment and cam assembly
after sts release by the segment gars drive
pinxon Normally the sprmg actxon of the
swatch contacts through the sleep control
swrtch lever should be suticrent to allow sleep
control cam and gear segment to sprrng out
wnfrd completely after rt becomes disengaged
from rts prmon drrve gear However, rf bmd
mg or posxtnon of control parts results rn fall
ure of segment gear and cam to swung com
pletely outward properly releasrng swntch
control lever and contacts the addmon of the
booster sprung (catalogue no RMS 203) will
provide the additional tensrou to correct seg
ment gear and cam operatton
To mstall the booster sprang, remove the
case and draw the clock mechamsm forward
'rom the front oi the radro cabmet just far
enough to permit rnstallatron of the booster
sprang The accompanymg tllustratron shows
the posrtron of the booster spring as vrewed
from the rear of the clock mechamsm One
end of the sprmg rs fastened to the cam stud
'the other end to the brass front plate stud
I A """"' Rear mew of clock mzchamsm
m General Electnc Model:
*Q _Q of banner :pr-mg
f>> r not no v nrt sm
General Electnc B0 62 64 65 56 67
The stock rtem RAB 054 Cabmet back and
loop rs no longer avarlable and Stock No
RAB 097 Cabrnet back and loop rs substx
tuted rn lts place For those recenvers pro
duced employmg RAB 054 wrth connecnons
made to the pnmary antenna wmdmg the
black ware to chassrs ground rs removed when
RAB 097 rs substrtuted for replacement
General Electric 123 124 125
A self tappmg screw #4 x Mt mch Cat
No RHS 044 Shakerproof type 25, has been
added to the Parts Lxst for the above models
Cabinets of later productxon recewers were
tapped lor these screws to mount the loud
speaker rn hen of the 'lmnerman chp
RHM 061 used rn earher speaker mountmgs
General Electru: 140
longu stocked rrvetul to a \\\ouutn\g hr rcket
lhe new rettlher may he screw moullted tu
the url mul rectthcr btacket as lollows
remo\e mres at the connectmg lugs of tl\e
old rcctrher usmg screwdr wer blade hetween
plates of rectther to be removed pry plates
ol? from rectxher mountmg bracket assemble
meh long screw through rectrher and bracket
hole and tastcn using lock \va~hcr and nut
leplntt nrre tunntcnons tn new rectrher
General Electnc 143
In late productron receivers C5 was changed
to 025 pf 200 volts Cat No UCC 050 Thrs
change was made to reduce regeneratxon >>wh\cl1
restrlted rn unstable operat\on
General Electnc 165
A tube shreld has been added m late pro
ductron reeervers to the ISS tube rmprovmg
nts stabrhty This rtem ls carrred rn parts
replacement stock at RHS 010
General Electnc 218 2181-1
A 15 000 ohm % watt resrstor R33 has been
added between the hxgh srde of the volume
control and the arm of the band swrtch S1D
`I`hrs improves recerver stabxlnty The follow
mg changes should be made m the Parts Lrsts
for these models
Delete swek No RLI 084 Add RLI oss
Choke f m antenna (LZ) used ln 218 only
Add URD 077 Resistor 15000 ohms % w
Stock No RLI 088 has been deleted from
the Parts List and Stock No R1 I 084 Coal
im antenna choke 1.2 added m :ts place
General Elecmc 402
R2 shown connected to B+ should cross
ogr the vertrcal B+ lead to pm 6 of V2 and
a. dot connectlon should be drawn at the ver
trcal B lead to om 2
General Electric 595 503 507 508
Catalogue :tems RWL 009 and RWL 015
should be deleted from the Parts Lrst and re
placed by the iollowmg stems RWL 025
Cord power cord and plug (brown, heavy
duty type) for Models 505 507, 503 RWL
026 Cord power cord and plug (ivory heavy
duty type) for Model 506
Model 43>>8129A_ Models 94RA4-43-8130A The accompanyingmustr?don of the four new rectiher to bracket, using a #6-32 x 1
? John F. Rider

Page 3:

:_ use
UNIT K67.lB36
, C11, C12 and C13 are identified from the
vu_u? o ALL cane vans
PIN 5 OF 35L6
Tubs and T Imml Loca on
?John F. Rider

Page 4:

o John F. Rider
UCC 03 (llteruta rzpluemxtnt for ,
<?1??m??? mllnemem for ncwfl- ons)
an-me L1 czlnulm mc:-wnh mmm- may I-2 15
ner-on c1A,n, cAx>Acrro -rn-mann mum cn- 0 o 111 0 .5
IHC-017 ClEUR;'-MounLin( clip lor oscillator coil 'BSZSGT G BSLGGT I2
lu-11-ous sxinqni-spngu lmmn for mun?in| g 0 D 8 7 .9 il) ? 75 9 Q0 '2
aux-149 sr-:Arr Ann susnxrm-nm; -ma
md mend# bun '
rm.-nas 'rs 1-|;.Ansronmz-:n~s>>?>>>>a a-f mm- ,,?,_-,AGES MEASURED BETWEEN BOTT O M V I E W OF C SSI U
gwmm p0J?"??RD A_?,,,,,,,,,,, ,,,,,,,,,l zo,ooo onus Pen von versa.
vowus cou'moL ummum Fig; s. swim vmagu N

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