[AMRadio] Original T.O. Keyer Article When?


Alan Cohen acohen at texas.net
Thu Aug 12 12:57:33 EDT 2004


A detailed construction article about to build a W9TO keyer may be 
found in Bill Orr's "West Coast" handbook on pages 597 - 600.  The unit 
in the handbook seems to have a circuit that is identical to the T.O. 
keyers commercially manufactured by Hallicrafters.

Alan
WA2DZL



On Aug 12, 2004, at 12:22 PM, Jim Wilhite wrote:

> In my 1964 handbook there is a construction article on and electronic 
> keyer
> on page 253.  Not being familiar with the TO circuit, I can't say for 
> sure.
>
> 73  Jim
> de W5JO
>
> ----- Original Message -----
> From: "James M. Walker" <chejmw at acsu.buffalo.edu>
> To: "Discussion of AM Radio" <amradio at mailman.qth.net>; "'Glowbugs 
> (E-mail)"
> <glowbugs at piobaire.mines.uidaho.edu>
> Sent: Thursday, August 12, 2004 10:14 AM
> Subject: Re: [AMRadio] Original T.O. Keyer Article When?
>
>
>> Try the 1964 series, and also the 1964 ARRL handbook.
>> Jim
>> WB2FCN
>>
>> ----- Original Message -----
>> From: "Merz Donald S" <merz.ds at mellon.com>
>> To: "'Amradio (E-mail)" <amradio at mailman.qth.net>; "'Glowbugs 
>> (E-mail)"
>> <glowbugs at piobaire.mines.uidaho.edu>
>> Sent: Thursday, August 12, 2004 10:16 AM
>> Subject: [AMRadio] Original T.O. Keyer Article When?
>>
>>
>> I have a piece of homebrew here that says in Dymo labeling that it is 
>> a
> "TO
>> Keyer". I'd like to look this up. Does anyone happen to know the 
>> ballpark
>> year when the original TO Keyer article was published? In QST I 
>> assume?
>>
>> 73, Don Merz, N3RHT
>>
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