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For blind ham radio operators <[log in to unmask]>
Date:
Tue, 13 Oct 2015 16:47:07 +1300
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Dave Allen <[log in to unmask]>
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Hi Ed!

12 VDC is easy enough to find even around my shack.

A fellow is hoping to start up a CW class in this area soon. I've passed on
some resources for him to review and use if he can see the practicality.
Offered to help in person if he gets anything going.

Still, I know it's easier to lead a horse to water than make it drink, hi
hi.

73,
Dave

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Ed Malmgren
Sent: Tuesday, 13 October 2015 4:38 p.m.
To: [log in to unmask]
Subject: Fw: TW-1

Dave, not any that I know of.  I wish there were for others but many people
don't like c w and turn their nose up at this kind. Also I forgot to mention
it runs on 12 volts which is nice also.  73



ED K7UC
-----Original Message-----
From: Dave Allen
Sent: Monday, October 12, 2015 9:20 PM
To: [log in to unmask]
Subject: Re: TW-1

Hi!

That was a great price, and I could even use that at the club without much
hastle.

Too bad they don't make them any more.

Anything else around with CW output?

73,
Dave

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Ed Malmgren
Sent: Tuesday, 13 October 2015 4:12 p.m.
To: [log in to unmask]
Subject: Re: TW-1

I have a P 2000 c w meter built by RF Applications which reads all out in C
W up to 2000 wats and I could ask for nothing better.  It has for tuning, c
w dits which get closer together when you near the lower s w r and then when
reaching 1 to 1  the tone is a solid tone.  It reads s w r,power and holds
the highest peaks on modulation.  The speed goes from 5 to 50 or 60 I forget
which and alerts you when the s w r goes to 3 to 1 which is adjustable.  It
has two cables running to the, forgot the name of the unit where the coax
screws on so all you have on the desk is the control box about 8 by 4 by
inches with two buttons and two pots, one for speed, the other for volume.
I think if remembering right I paid 250 bucks a few years ago and would not
trade for any other kind.  I  would think it would be much cheaper than a
talking type. Your mileage may   very however. Sadly they quit making them.
73  ED K7UC
-----Original Message-----
From: Tom Fowle
Sent: Monday, October 12, 2015 8:10 PM
To: [log in to unmask]
Subject: Re: TW-1

Actually there have been audible meter readers of various types since the
1920s.

If the watt meter has a computer interface then a microcontroller can be
programmed to read that.

Actual speech synthesizers are still too expensive for such a project,
however systems like the Arduino boards can do digitized words in
applications like this where the number of words required is smallish.

Tom Fowle WA6IVG

On Mon, Oct 12, 2015 at 06:06:04AM -0500, howard kaufman wrote:
> Not boring, but I disagree.
> The VCO across the meter of a SWR meeter, has given that information 
> since the 60's.  The lower the pitch on reflected power, the lower the 
> reflected power.
> Can you get a didgital output off of a didgital watt meter, that can 
> drive a synthesizer, or a screen reader?
> If accureate PEP readings were available, that would be great!
>
>
> -----Original Message-----
> From: For blind ham radio operators
> [mailto:[log in to unmask]]
> On Behalf Of Tom Fowle
> Sent: Sunday, October 11, 2015 10:14 PM
> To: [log in to unmask]
> Subject: Re: TW-1
>
> Well Ron took care of asking LDG for help. actually most small 
> business people, and big ones too, are pretty paranoid about their 
> products even those they never plan to make again.  Darned Lawyers!
>
> However, I shouldn't think it very difficult to reproduce a similar 
> unit, it mostly depends on who has what connections with what kind of 
> manufacturing setups.
>
> Should those of us with some experience in trying this task get 
> together, perhaps in a seperate list, and see what we can thrash out?
>
> As long as nobody has proprietary feelings about sharing work, we 
> might be able to put together various ideas and maybe even, <gasp!> 
> get something done?
>
> Here's my thinking on what is actually needed. Skip rest if you're bored!
>
> We don't really need a talking watt meter unless running legal limit 
> and need to be sure not going overboard.
>
> What is really basically needed is an audible accessible vSWR meter.
> All you really need to know is that the rig is seeing an swr that 
> makes it happy.
> Even with a manual tuner, that's all you need.
>
>
> so a simple audio VCO design based on a cheap swr meter with an 
> indication of 2/1 or less VSWR will do for most purposes.
>
> Look back at April 2013 QST for Bill Gerrey's article showing how to 
> add such a simple circuit to an MFJ meter.
>
> It's simple, easy to reproduce, cheap in common parts  and does the job.
>
> You'll hate it of course, cause everything just has to talk! <GRIN>
>
> Have I stirred up a hornets nest? Or bored you to delete?
> BTW, I believe Rob Santello of Hampods is working on a talking watt meter.
>
>
> tom Fowle
> WA6IVG
>
> On Sun, Oct 11, 2015 at 08:24:58PM -0500, Dr. Ronald E. Milliman wrote:
> > Brian, I have one of the TW-1 talking SWR/power meters, and have 
> > tried to obtain the schematic from LDG, and they will not provide it 
> > to anyone. We have reverse engineered it and are still working on 
> > this project. We are investigating several different circuits and
options.
> > The most expensive component is the voice module or chip, which can 
> > be pretty expensive, depending upon your objectives.
> >
> >
> >
> > Ron, K8HSY
> >
> > President, Millitronics, Inc.
> >
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> >
> > From: For blind ham radio operators
> > [mailto:[log in to unmask]]
> > On Behalf Of kd8ase
> >
> > Sent: Sunday, October 11, 2015 6:06 PM
> >
> > To: [log in to unmask]
> >
> > Subject: TW-1
> >
> >
> >
> > Hello, all, This question is for anyone who owns the tw-1. I am 
> > looking for= a schematic/partslist for this device.
> >
> > I am talking to a couple engineer/technician friends and we are 
> > going to tr= y reproducing this device.
> >
> > TNX, Brian McFadden, KD8ASE
> >
> >
> >
> > ---
> >
> > This email has been checked for viruses by Avast antivirus software.
> >
> > https://www.avast.com/antivirus
> >
> >
> >
> >
> >
> > Dr. Ronald E. Milliman
> >
> > Retired Professor of Marketing
> >
> >
> >
> > President: Millitronics, Inc. (millitronics.biz)
> >
> > President: A3 Business Solutions (a3businesssolutions.com)
> >
> > President: M&M Properties
> >
> > President: South Central Kentucky Council of the Blind (SCKCB.ORG)
> >
> >
> >
> > 

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