[time-nuts] Small DMTD project PCBs Group Buy Update, boards are here !

[Stanley Reynolds]

Bob,

No parts list except this one which you can use to get started : 
http://n4iqt.com/BillRiley/DMTDMixerModulePartsList.xls
Spreadsheet file

or down load the free PCB express software and generate a parts list with them 
and files here :

http://n4iqt.com/BillRiley/MixerModule_7.sch
http://n4iqt.com/BillRiley/DDSModule.sch

DDS board has the option for 4 distribution amps only 2 are used normally.

PICTIC II board is used without the op amps and 7.5 volt regulator notes:
http://n4iqt.com/BillRiley/No-interpolator.txt
page 3 of this file has full parts list
http://n4iqt.com/picticii/circuit-pcb.pdf
If you install the interpolator it can be turned off with a software command.

R25 a 10 K resistor only used with the TTL computer interface option, not used 
with the RS232 chip, is listed twice as 1% or 5% either will work but you don't 
need both.

Stanley

 


----- Original Message ----
From: Robert Darlington <rdarlington at gmail.com>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Tue, September 7, 2010 5:16:46 PM
Subject: Re: [time-nuts] Small DMTD project PCBs Group Buy Update, boards are 
here !

Cool.  Is there a parts list?  I definitely want to build one.  Looks like
a really interesting project and a great opportunity for me to learn.  I've
been meaning to tinker with those AD DDS chips for a while.  I have a dev
kit for one of the models around here somewhere that I picked up for an
ultrasound focusing project (sound radiation pressure was used to push blood
cells to the center of a capillary tube) but all I really did was layout.
No software for me on that one.

-Bob

On Tue, Sep 7, 2010 at 11:40 AM, Stanley Reynolds <
stanley_reynolds at yahoo.com> wrote:

> Yes this file:
>
> http://www.n4iqt.com/BillRiley/A-Small-DMTD-System.pdf
>
> Stanley
>
>
>
> ----- Original Message ----
> From: Robert Darlington <rdarlington at gmail.com>
> To: Discussion of precise time and frequency measurement <
> time-nuts at febo.com>
> Sent: Tue, September 7, 2010 11:54:56 AM
> Subject: Re: [time-nuts] Small DMTD project PCBs Group Buy Update, boards
> are
> here !
>
> Hi Stanley,
>
> I'm very interested in building this project.  Do you have documentation
> online?  I'd like to read through it then send you the $47 for the boards.
>
> Thanks,
> Bob
>
> On Sat, Sep 4, 2010 at 1:28 PM, Stanley Reynolds <
> stanley_reynolds at yahoo.com
> > wrote:
>
> > Packing them up to take to the PO.
> > Paypal to stanley_reynolds at yahoo.com
> > $9.50 per board $47.50 for the set of 5.
> > If you mail your payment to:
> > Stanley Reynolds
> > 225 Alpine Street
> > Birmingham, AL 35210
> > then $9 per board $45 for the set of 5.
> > Yes I have plenty of extra boards.
> >
> > Notice arrow has a good price on the DDS chip.
> > I have no plans to provide parts except if someone is unable to complete
> > the
> > project otherwise.
> >
> > Stanley
> >
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at febo.com
> > To unsubscribe, go to
> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
> >
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.