PS Magazine - MARCH 1978
PS, The Preventative Maintenance Monthly
ISSUE 304
MARCH 1978
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A ired-up AN/PRC-74 rad10 set 1s
Never use the AS-±887 at or below
µ
½¾
¿ÀTÁ
'²I
²
Eadmg for a burn when the antenna 3.5 MHz or yoU can wInd up wIth a
¿1ÀYÁÂÃ Ä
,
is Loose or not hooked up³´
daµ¶gED output stage· ¸se only thE
1
³´-
So, ¹ake sure your ASº±88» (),sLant
¼
slant w½rE or d½polE a¾tEnna In thIs
wIre or dIpole antenna ¿s tIed Into your frEquE¾cy r¶¾gE·
set bef
O
re turn¿ng the ÀFFºÀN-
Át's a good Idea fOr the antenna to be
TÂNà swItch to T¸Nó
connected bEfore you even turn your
set ÀN sInce a sl¿ght fLIck of the swItch
can go past ÀN to T¸NÃÄ ThIs'll zap
power aµplIfIer transIstorsÅ
Æo lIke ¿t says ¿n TM ±±-582Ç-59Ç-
±2 (Mar 66) wIth changes and ȱ2-±
(Mar 67) wIth changes for ¹ak¿ng the
antenna connectIÉnÄ
You never want to force knobs
when they are hard to turn or won't
turn at all, especIally the ANT TÂNÊ
Ë
Ì:
ÍÎ
knobÅ ForcIng It can cause bIg da¹age
-±.·²³
where a lIttLe rEpaIr job ¿s needed³
Chances are the tunIng wafers are
³
hung up and need so¹E expert ÏeLp, so
µ_¶
¸
¹º:»¼l!½L£¾¿
ÀÁÂÃÄ
2ÅÆÇÈ
get a repa¿r¹anÄ
5É
You can get a cLIp f
Or tÐe cotton
duck bag wh¿ch carr¿es your AN /PÑC-
77 radIo sEt accEssorIEs· ÒhIÓ ExpEnDÔ
ablE clIp, NSN 534Ç-ÇÇÕ753-558Ç, Is
author¿Zed In footnote 2, AppeÖdIx A,
CTA 5Çº×»Ç ØÙl 74)Å Th½s cLIp fastens
thE bag to your harness ³
53
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