[ARC5] RE-94A/AIC-10

[Scott Johnson]

Keep in mind it was primarily an Air Force system, the Army TM  was probably
several years later.  The C-130B was fitted with the solid state version a
from the beginning (no provision or wiring for the Dynamotor), and those
tails date back to a 1957 contract date, so I would guess 1958 roll out.  I
have an AIC-10 T.O. somewhere, I could probably find the original date, but
I'm not all that motivated!  I have wondered if the solid state AIC-10 amps
might have been one of the earliest use of transistors on a military
aircraft.  What do you think?

 

Scott 

 

From: WA5CAB at cs.com [mailto:WA5CAB at cs.com] 
Sent: Saturday, June 20, 2015 9:14 PM
To: scottjohnson1 at cox.net
Subject: Re: [ARC5] RE-94A/AIC-10

 

Yeah, I noticed that later.  AM-476A is still tube.  But it all happened
about two years later than your timeline because the TM 11-5831-200-35 I was
looking at is dated 1959.

In a message dated 06/20/2015 22:59:09 PM Central Daylight Time,
scottjohnson1 at cox.net writes: 



Robert-
The AIC-10 components were either tube, or later, with a TCTO, all
transistor.  The AM-476 and maybe the A version were tube, and the
subsequent B and C versions were transistorized (the B had 4 plug in
germaniums, and the C had  potted silicon transistor (later IC) circuitry.
This also goes for the cabin speaker, which originally had a booster amp
with 4 sub mini tubes in PP parallel, later had two 2N158s, and even later,
a sealed module.  When the TCTO was accomplished(in the late fifties,
through the early sixties, depending on MDS), the Dynamotor was removed, so
you couldn't have a hybrid system.

The AIC-10 is still flying in the B-52H, The KC-135 had it until Pacer Crag,
then it got a whizzy new digital intercom.

Regards,

Scott W7SVJ



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