Sentinel Radio Corp. 180XL Schematic

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Product Information:
Model:180XL
Manufacturer:Sentinel Radio Corp.

Schematics Content:

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Page 1:

SENTINEL 1'AGE ll-13
/, |0111 (117 D - gqgizgp?g 5 E _ 0 gag
= ? T = 'g 959 ? ' ' >~ I, g? use =)? `? ??*5 N mu
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I II O BLUE
[B likiilll #I >.4 -l RED WHEN oven- I ; O
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#_ on sAn\_v moons as un counts) _ PLus. o \? 0 LAMP
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1*??~ ma? can B Desai mm nm No. Na. nesaxpzion Price 226 v_ gpEgA1'?|g3R _ _
2 wma ch e puery .,._._____ .._.,.._____ s _:sn 15 1147 Condemer Tubular .os Mid. zoo v<>>1?.,.. .19 |0562 (38) ? ? m
on mm .___ ,,,_____ _,,.._,...._ _ e 5 ls lass cmdemer Tubular .ana 1/In-1. 4ou v?\? 17 mu: P 1 ?
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5 10857 cfs? o';?il:;rCOmpl9\9 Wllh }'1n'm9 Lg I5 S453 Condeluar Mica Moulded .DODZS MId.,... .21 Ohm 2 Wm! ..,,.. 8 .22 E
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M11 'sn Vout 1 In 22 2705 Hespior Carbon 2 Meqohm I/3 WGN.. .IS 32 108-Sl Hellslol line Cord E Plug .......,.. .,. ~9U
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14 2131 cnndenw 'rubuxm ,s 1vu?L zno v<>1?.__, .ss ?"'?' P'?'"1'l? 25 Oh" 1 W?" ---~~>> J' aa masz n ' nmmiun Line cmx zzn vnu. .,.,... . 11541 Q
(C)John F. Rider, Publisher

Page 2:

PAGE 11-M SENTINEL
MODEL 18OX.L
S??k9t>>T1'L"\II191'3 SF NTINEL RADIO CORP
PORTABLE - BATTERY OR 110 VOLTS, DC-AC 50-60 CYCLES
Balkan View oiCh1|s
Top vi O* CI wmnvml m
Eff I' ~? ' .,
nun
ALIGNMENT PROCEDURE
Follow procedure carefully and In the order given-read labulatlons from left to :ight II more tho-n one adyustmant xs requrred on
any one band make the adjustment marked (1) Ilrsi. (Z) next (3) third
Before startlnq ahqnment cheek tuning :hal adlustment by tum qcmq condenser untxl plates touch muxtmum cupumty stop (completely
rn mesh) at which point the dial Indicator must be exactly even with the -last Ilne at the low frequency end of the drrxl caltbratton II
dial needle does not point exactly to lust line move needle to correct posxiion
Use an accurately calibrated test oscrllator with some type of output measuring device
BEFORE ALIGNING PLACE LOOP ANTENNA AND THE A AND B BATTERY PACK IN THE SAME APPROXIMATE POSITION IN
TI-IE BACK Ol-` GIASSIS THAT THEY WILL BE IN WHEN THE SEP IS IN THE CABINET AND THE CABTNEI' BACK CLOSED
When cdlultlnq 1730 ldlocyelo osclllalor trimmer cmd 1400 Hlocydl mhnnu trlmmn do not connect hit olclllnlof to terminal! on botlom
Couple Isnt oscillator to receiver loop by
a) Make u loop mnslstmq at itve to ten tums el No 20 to 30 size wire wound on a three Inch (om and attach across output ot test osctllator
b) Place test oeclllcxtor loop near set loop-BE SURE THAT NHT!-II-IR MOVES WHILE ALIGNTNG
sau metvu Lama me U" dummy fmmnu
aml me "anew In lerlu with mlm"
|,,q",n?' W ot tad udllnbf
Aim!!! WWII J bl(
oadllabr tot
Rah: lo pmt: layout diagram
kr location ci klmmon
mentioned below-and:
Any point where no
condenser
High side Io gud
Iomllnul ol IA7G tube
I/Jw side to chassis
DO NOT REMOVE CAP
Adaust the second I F t1-ans>>
former trunmers for mcrxlmum out
putdlhen Lrdiust each of the first
I F Irlmmers for maxlrnum output
(1) Exactly Exactly
None
Use small loop to
couple test osdllator
to reoelver loop
Adjust 1730 K. C. oscillator
Approx. Exactly
None
Use small loop to
couple test oscillator
to receiver loop
Adiust 1400 K. C. antenna trim-
mer for maximum output.
(C)John F. Rider, Publisher

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