[RTTY] New call with no numbers

[Doug Hall]

The CK722 was one of the first commercially available transistors.
Germanium, I believe. I have a 1957 QST with a construction article for a
receiver using CK722 transistors. The author mentions that he had to try a
number of CK722s before he found one that would work at 14 MHz.

73,
Doug K4DSP

On Fri, Dec 3, 2010 at 9:12 AM, <Ktfrog007 at aol.com> wrote:

> ??  I'm one of those in the dark about CK722.  Enlighten  me.
>
> Thanks,
> Kermit, AB1J
>
>
> In a message dated 12/3/2010 12:55:33 P.M. GMT Standard Time,
> dezrat1242 at yahoo.com writes:
>
> On Wed,  01 Dec 2010 14:02:14 -0800, Kok Chen <chen at mac.com>  wrote:
>
> >Can Canadians pick CK722 as a call sign?  :-P
>
> REPLY:
>
> You're really mining the archives now, Chen. I wonder  how many hams
> recognize the signiifiance of CK722?
>
> 73, Bill  W6WRT
>
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