[hpsdr] PennyWhistle Connection Diagram

[John Westmoreland]

Graham,

Yes - I was going to report today that I used PennyWhistle last night, did
some testing, and if there's any damage, I can't find it or it isn't
apparent -
so - all is well regarding that.

Also - yes - if we can get 1.2 posted universally that would be great.

73's,
John
AJ6BC
PS - I had it in the back of my mind somewhere that I'd seen a correct
diagram before - but I'd put the project aside for awhile due to other
issues and then came back to it.
As long as we get it straightened out - then everything is OK.

On Wed, Mar 7, 2012 at 7:59 AM, Graham / KE9H <KE9H at austin.rr.com> wrote:

>  John & All:
>
> The parts are rated for operation up to heat sink temperatures of 80
> degrees C,
> so a heat sink temperature of 120 degrees F or about 50 degrees C is not
> a damage issue.
>
> I will work with Phil to get the manual revised this weekend.
>
> Are there any other errors or changes needed to the PennyWhistle
> manual, as long as we are going to release a new revision?
>
> --- Graham / KE9H
>
> ==
>
>
>
> On 3/6/2012 4:25 PM, John Westmoreland wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
>
>
>
>
> 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
>>
>>
>>
>>
>
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