PS Magazine - MAY 1973
PS, The Preventative Maintenance Monthly
1973 SERIES, ISSUE 246
MAY 1973
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DE-ICER iS NiCER OUTSiDE
Dear Hal-Mast.
We've
got a fap
g
oin' over where to put the moisture shieLd on the H±60
handset oF our
ĀāĂ3ă2
teLephones²
Some say it
goes inside the mouthpiece. which is screwed down over it³
Some say it stays on the outside´ What
g
ives?
ĄąĆćĈĉ GĊćĄ
Ċċ Čąć
ĊčČĄĆĉć
ĎďĐ JđĒ
ē
Ĕđ
Dear Sergeant J.D±O±,
The shield (or de-icer), FSN 5805-392²
7628, stays outside³
You press the metal rim in place with a
knife or screwdriver, being careful not to
puncture a hole in the screen´ There's a
bevelled edge the shield fits under, with a
recess so you can pRy it up´
Screwing the mouthpiece down over the
shield cuts down on its effectiveµess±
Hafit
GeL YOur GMM±1
Silica gel now has the nod for use in the
AN
/gmmĕĖ
radiosonde baseline check set¶
It controls humidity levels±
The gel is cheaper than calcium chloride,
can Be re²used, and is available with FSN
6850²263²8640± This gets you a can of 50
8²uniC packages´
4ė
ĘčČ GćĈ
Ćċ ęĚěĜ
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