[hpsdr] PennyWhistle Connection Diagram

[John Westmoreland]

Pete,

My amp got pretty hot during this process - I am wondering now if anything
is damaged.

This obviously needs to be fixed - in the documentation.  Maybe we need to
have an errata section where we accumulate these sort of items so no one
else has to experience it.  Got out my infrared gun and was measuring temps
in the 120 degrees Fahrenheit range while the amp was just sitting there -
so I knew something was wrong.

73's,
John
AJ6BC

On Tue, Mar 6, 2012 at 2:21 PM, n3evl <n3evl at townisp.com> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
>  John,
>
> I think you are correct. Below is my e-mail from 11/21/2009.  I was under
> the impression that the documentation had been changed to correct the
> inconsistency back then but apparently not.
>
> Pete, N3EVL
>
> "...***** High Performance Software Defined Radio Discussion List *****
>
> The connection diagram on page 5 of the Pennywhistle Assembly and
> Operating Instructions document shows the 3-pin header numbers with 1
> labeled as Bias Control and 2 labeled as ground.
> This appears to be at odds with the schematic which shows 1 ground and 2
> Bias Control.
>
> Since tests with my ohm meter agree with the schematic, it appears that
> the connection diagram is incorrect.
>
> The last thing I have to do is wire up the control cable to this header
> and the DB25 - want to make sure I have it correct.
>
> Pete, N3EVL
> __________________"
>
>
>
>
>
> On 3/6/2012 4:24 PM, John Westmoreland wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
>
> (resend without the diagram attached)
>
>  HPSDR,
>
>  I did a search of e-mail that I have - not exhaustive by any means - but
> has anyone noticed that the Bias Control and Ground Pin numbers are
> reversed in the below diagram?  (please see PennyWhistle connection diagram
> in the pdf on the web-site)
>
>  I wondered why my amp was starting to heat up when it wasn't doing
> anything.
>
>  73's,
> John
> AJ6BC
>
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at openhpsdr.org
> Subscription help: http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> HPSDR web page: http://openhpsdr.org
> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
>
>
>
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2114/4853 - Release Date: 03/05/12
>
>
>
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at openhpsdr.org
> Subscription help:
> http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
> HPSDR web page: http://openhpsdr.org
> Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20120306/2d594d30/attachment-0004.htm>