[CW] RE: [MorseCode] Help answering a question... please

[David J. Ring, Jr.]

Alan,

These messages are going through multiple email lists and I just responded
to you about this, but George here in this one speaks of the arrangement
that is most typical of what I know.

There was a separate switch for the dynamotor which was only applied when
there was anticipation of transmission.

The reasons the dynamotor was switched in and out only when transmitting
were:

1)    No of that loud noise when the dynamotor was off.
2)    No receiver hash from the brushes and motor of the dynamotor.
3)    Conservation of battery power.
4)    Reduction of strain on the motor-generator bearings of the dynamotor
and wear of the brushes.

The whine of a dynamotor is something near the whine of an infant who is
both soiled and wet his diaper and is hungry at all the same time.

73

David Ring
N1EA

----- Original Message -----
From: "George, W5YR" <w5yr@att.net>
To: "Doug Seneker" <dougseneker@centurytel.net>; <nw7us@hfradio.org>; "'CW'"
<cw@mailman.qth.net>; "'MorseCode'" <morsecode@mailman.qth.net>
Cc: <acaldwell@aol.com>
Sent: Monday, November 10, 2003 1:20 PM
Subject: Re: [CW] RE: [MorseCode] Help answering a question... please


> Many radios of that era had a Send/Receive switch. In Send, the dynamotor
> was started and possibly the transmitter tube filaments were lighted but
> they usually stayed on unless the transmitter was large and drew a lot of
> filament current.
>
> The mike key merely connected the mic into the circuit so that current
could
> flow through its carbon element and a switch was actuated that operated
the
> changeover transmit/receive relays.
>
> So, based on that common arrangement in the 30's, I see that it is
entirely
> feasible to send CW by keying the mic button. Since the rig was AM, the
> carrier would be keyed on and off and whenever the button was up the
> receiver would be activated - real QSK!   <:}
>
> As to speed, when times get rough and your life is on the line, you can
> really bang out the code on a T-17 mic button (WW2 mic - not what Amelia
> had)!
>
> 73/72, George
> Amateur Radio W5YR -  the Yellow Rose of Texas
> Fairview, TX 30 mi NE of Dallas in Collin county EM13QE
> "Starting the 58th year and it just keeps getting better!"
> w5yr@att.net
>
>
>
>
>
> ----- Original Message -----
> From: "Doug Seneker" <dougseneker@centurytel.net>
> To: <nw7us@hfradio.org>; "'CW'" <cw@mailman.qth.net>; "'MorseCode'"
> <morsecode@mailman.qth.net>
> Cc: <acaldwell@aol.com>
> Sent: Monday, November 10, 2003 10:19 AM
> Subject: [CW] RE: [MorseCode] Help answering a question... please
>
>
> > Ref. Earhart sending CW with a mike button;  When I started as a cop in
> > the KC area some cars still used the old Motorola 30-D "twin coffin"
> > radios with a dynamotor.  To get a message out you had to "press, wait,
> > then talk" because they simply wouldn't transmit until the dynamotor
> > revved-up.  The first word or two would be lost if you didn't wait.  It
> > was a practice to "click" or double-click the mike button as a greeting
> > to a buddy, or as an informal comment or acknowledgement of some air
> > traffic.  You simply couldn't do the "clicks" if you were stuck with a
> > dynamotor unit.  I don't see how one could send CW with the mike button
> > unless it was SUPER, SUPER slow, maybe 1 or 2 WPM?   Doug Seneker, n0wan
>
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