Preliminary Gemini 4 Crew Debriefing, Part II, 1965

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to it .
If you really listened, you could hear.
That's right . If you were very close to going to
sleep and something went on that was interesting,
you could hear just enough to wake you up and
pull your interest to it. It made sleeping
rather difficult .
We didn ' t want to disconnect
ourselves from the system altogether.
We ' d like
to have a way to actually tum the volume all
the way down and provide the astronaut· that ' s
awake the capability of controlling the voice
c~ntrol ccnter' R volume so that he can turn the
sleeping astronaut ' s volume up and talk to him
anytime .
That ' s right .
I think what we really need in
there is an ON-OFF switch for each half of the
vcc.
So you can effectively cut him off and turn him
back on .
That ' s right. You just reach over there and you
break t he communications with a simple ON-OFF
switch. Then if you 've got to get to it in a
hurry, you just f l i p the thing back on and then