[CW] Book on keys

[D.J.J. Ring, Jr.]

NP3CW the author of this book is on 18088.0 kHz right now

73

David N1EA

On Sat, May 13, 2023, 8:15 AM John <johnk5mo at gmail.com> wrote:

> I just picked that up recently and have enjoyed the info on all of the
> obscure early electronic keyers.
>
> 73
> John K5MO
>
> On Sat, May 13, 2023 at 1:58 AM D.J.J. Ring, Jr. <n1ea at arrl.net> wrote:
>
>> I found this one and it is full of good info
>>
>>
>> 73
>>
>> John Paul Keon
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