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From: Robert Baer on 8 Jul 2010 13:34
Robert Baer wrote:
> langwadt(a)fonz.dk wrote:
>> http://upload.wikimedia.org/wikipedia/commons/3/37/Dolby_SR_breadboard.jpg
>>
>>
>>
>>
>> -Lasse
> Must be analog, and have some problems as-is: a) go up one "add-on"
> board on the right and notice one IC half-way plugged in; b) go above
> the second "add-on" board on the right and see a BAER wire shaped like a
* Sorry; meant LEFT---------------^^^^^

> lower-case "e"; that is the you-know-what worst browser that
> Monstor$tomper (or any other "programmer") made.
From: Robert Baer on 8 Jul 2010 14:06
Cydrome Leader wrote:
> langwadt(a)fonz.dk <langwadt(a)fonz.dk> wrote:
>> http://upload.wikimedia.org/wikipedia/commons/3/37/Dolby_SR_breadboard.jpg
>>
>>
>>
>> -Lasse
>
> the left board looks strange to me.
>
> it doesn't appear to have copper traces except on the edges. Am I seeing
> this wrong? I can see drilled out spots where traces would have been cut,
> but I don't see the traces.
>
> The right side except for being surface mounted makes more sense. The
> soldering is pretty need. Is there some 1980s technique to keep solder
> from flowing down the trace?
>
>
You need to look rather carefully, enlarge by a factor of two and
look here and there.
The traces are BAERly visible due to the light angle being a bit
different.
From: Robert Baer on 8 Jul 2010 14:10
Jan Panteltje wrote:
> On a sunny day (Wed, 7 Jul 2010 18:24:25 -0700 (PDT)) it happened
> "langwadt(a)fonz.dk" <langwadt(a)fonz.dk> wrote in
> <ed6abd35-6586-4594-8408-efc8d58b64c8(a)j8g2000yqd.googlegroups.com>:
>
>> http://upload.wikimedia.org/wikipedia/commons/3/37/Dolby_SR_breadboard.jpg
>>
>>
>>
>> -Lasse
>
> At least somebody had patience...
> Wonder what the bottom side looks like...
>
> Here one of mine:
> ftp://panteltje.com/pub/z80/graphics_card_top.jpg
> ftp://panteltje.com/pub/z80/graphics_card_bottom.jpg
Did Ma Bell give you a thousand feet of 50-pair cable?
Isn't there a lot of ringing and cross-talk, or is the clock rate low
for a slow-scan system (FAX or weather)?
From: Robert Baer on 8 Jul 2010 14:24
Jan Panteltje wrote:
> On a sunny day (Wed, 7 Jul 2010 18:24:25 -0700 (PDT)) it happened
> "langwadt(a)fonz.dk" <langwadt(a)fonz.dk> wrote in
> <ed6abd35-6586-4594-8408-efc8d58b64c8(a)j8g2000yqd.googlegroups.com>:
>
>> http://upload.wikimedia.org/wikipedia/commons/3/37/Dolby_SR_breadboard.jpg
>>
>>
>>
>> -Lasse
>
> At least somebody had patience...
> Wonder what the bottom side looks like...
>
> Here one of mine:
> ftp://panteltje.com/pub/z80/graphics_card_top.jpg
> ftp://panteltje.com/pub/z80/graphics_card_bottom.jpg
What did you use for the background?
It seems better than a rug or towel.
From: Jan Panteltje on 8 Jul 2010 14:42
On a sunny day (Thu, 08 Jul 2010 11:24:55 -0700) it happened Robert Baer
<robertbaer(a)localnet.com> wrote in
<Z9udnXdo-qJxiqvRnZ2dnUVZ_o6dnZ2d(a)posted.localnet>:

>Jan Panteltje wrote:
>> On a sunny day (Wed, 7 Jul 2010 18:24:25 -0700 (PDT)) it happened
>> "langwadt(a)fonz.dk" <langwadt(a)fonz.dk> wrote in
>> <ed6abd35-6586-4594-8408-efc8d58b64c8(a)j8g2000yqd.googlegroups.com>:
>>
>>> http://upload.wikimedia.org/wikipedia/commons/3/37/Dolby_SR_breadboard.jpg
>>>
>>>
>>>
>>> -Lasse
>>
>> At least somebody had patience...
>> Wonder what the bottom side looks like...
>>
>> Here one of mine:
>> ftp://panteltje.com/pub/z80/graphics_card_top.jpg
>> ftp://panteltje.com/pub/z80/graphics_card_bottom.jpg
> What did you use for the background?
> It seems better than a rug or towel.

Much better, my desk, 'formica'.

>
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