[sdiy] uA726, heated pairs (slightly OT)

[Magnus Danielson]

From: Edu Silva <bahi0387 at terra.com.br>
Subject: Re: [sdiy] uA726, heated pairs (slightly OT)
Date: Sun, 10 Aug 2003 16:10:32 -0300

> Paul Higgins wrote:
> > 
> > ... but why the heck do you need a thermostated matched pair in a
> > missile?  I really found that kind of bizarre.
> 
> 
> 
> They were part of all kinds of basic modules (multipliers, square roots
> extractors, expo converters, etc) on analog computers, used in automatic
> flght control.

Yes, but how did they synthesize that cracking sound they make when they go
off into the air?

Cheers,
Magnus - who also wonders how come laser-canons can make sounds through vacuum