[time-nuts] And you thought you were old

Max Robinson max at maxsmusicplace.com
Tue Apr 20 12:26:00 EDT 2010


I once heard a story from a man who burned out half the transistors in the 
world.  He worked at Bell labs and had built an amplifier using three of the 
six transistors that had come out of an initial prototype run.  Something 
shorted and burned out all three.  I briefly exchanged emails with him but I 
don't remember his name.  That was a long time ago.

Regards.

Max.  K 4 O D S.

Email: max at maxsmusicplace.com

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----- Original Message ----- 
From: "J. Forster" <jfor at quik.com>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Tuesday, April 20, 2010 8:56 AM
Subject: Re: [time-nuts] And you thought you were old


> Do you know the story of the CK722?
>
> In the 1950s, Raytheon was making tiny transistors for hearing aids to
> replace the pre-WW II subminiature tubes.
>
> Aside: Those tubes, developed by Norm Krim, were ruggedized and used in
> the WW II Proximity Fuzes, one of THE big inventions of WW II.
>
> Anyway, Raytheon was making piles of these tiny transistors, but many were
> not making hearing aid specs. Norm got the idea of packaging them to sell
> to hams to learn about transistors. If you open up one of the blue ones,
> there is another tiny case inside which is the real transistor.
>
> BTW, Norm is still alive and well in his 90s.
>
> -John
>
> ===============
>
>
>
>> Anyone remember the CK722 transistor? As I remember they were about 
>> $7.50,
>> a
>> considerable sum.
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>
>
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