Electronic Schematics (alt.binaries.schematics.electronic) A place to show and share your electronics schematic drawings.

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Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are nearly
all politics that don't belong in either group.

I guess there isn't much here anymore...

--

Rick
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On Fri, 31 Jul 2015 02:20:19 -0400, rickman wrote:

Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are nearly
all politics that don't belong in either group.

I guess there isn't much here anymore...


You won't be missed :-}

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
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On 7/31/2015 2:20 AM, rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are nearly
all politics that don't belong in either group.

I guess there isn't much here anymore...


Can't even have a discussion about this group being dead... I guess I'm
dumping it.

--

Rick
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rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are
nearly all politics that don't belong in either group.

I guess there isn't much here anymore...


Ever since LTSpice came out people have been posting netlists instead of
schematics.

--


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On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso"
wrote:

rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are
nearly all politics that don't belong in either group.

I guess there isn't much here anymore...


Ever since LTSpice came out people have been posting netlists instead of
schematics.


..ASC files aren't "netlists", they're text-based graphical
descriptions of schematics.

When you select "Run" from within LTspice, LTspice creates a netlist
internally, then uses that netlist to do the simulation.

...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| San Tan Valley, AZ 85142 Skype: skypeanalog | |
| Voice480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.


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"rickman" wrote in message
...
On 7/31/2015 2:20 AM, rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are nearly
all politics that don't belong in either group.

I guess there isn't much here anymore...


Can't even have a discussion about this group being dead... I guess I'm
dumping it.


Soon the notorious spammer will be spouting his warped political rants at
thin air.

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Jim Thompson wrote:
On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso"
wrote:

rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are
nearly all politics that don't belong in either group.

I guess there isn't much here anymore...


Ever since LTSpice came out people have been posting netlists
instead of schematics.


.ASC files aren't "netlists", they're text-based graphical
descriptions of schematics.

When you select "Run" from within LTspice, LTspice creates a netlist
internally, then uses that netlist to do the simulation.


OK, then ever since LTSpice came out people have been posting
proto-netlists instead of schematics.

--


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"Tom Del Rosso" wrote in
message ...
Jim Thompson wrote:
On Mon, 10 Aug 2015 12:15:22 -0400, "Tom Del Rosso"
wrote:

rickman wrote:
Is there any reason to subscribe to this group? I only see one in
twenty posts that aren't cross posted to s.e.d. The other 19 are
nearly all politics that don't belong in either group.

I guess there isn't much here anymore...

Ever since LTSpice came out people have been posting netlists
instead of schematics.


.ASC files aren't "netlists", they're text-based graphical
descriptions of schematics.

When you select "Run" from within LTspice, LTspice creates a netlist
internally, then uses that netlist to do the simulation.


OK, then ever since LTSpice came out people have been posting
proto-netlists instead of schematics.


And political rants - its got so bad, even I've taken the attitude; "when in
Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the past few
years its been dragged down into the sludge.

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Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.


And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

--


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Tom Del Rosso wrote:
Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.


And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

There are a number of free/cheap schematic drawing programs: Eagle
and Express PCB for example.
Nothing wrong with ASCII art.
Here is an example copied from years ago:
James Arthur wrote:
Robert Baer wrote:

Robert Baer wrote:




150K 120K
+-----/\/\----+-----/\/\--+---
| | |
| | |/------+
--- +--------+---| 2N2369A
- | | |\
| C1 --- V
| 330p --- |
| | |
Cld --- +-----+
22p --- | |
| C2 --- \
o 250p --- / 4.3K
Xtal | \
o | |
| | |
| | |
+--------+-----+
|
---
-


With C2 at 330pF, only the 200Khz tuning-fork crystal oscillates,

and only with a supply voltage near 2.5V; At 3V to 20V supply,
2Mhz-10Mhx crystals work and the 12Mhz does not.
With C2 at 250pF, no tuning-fork crystal will oscillate, and

those from 2Mhz to 12Mhz does.
However, the higher frequency crystals oscillate at a lower

amplitude with a given supply voltage.
This circuit gave me a surprise; it is clear at 2Mhz, that it

operates as a class C circuit from about 5V up.
Put a 50 ohm resistor in the collector and pick off the signal

with virtually zero disturbance of the oscillator.

I have done some fiddling with C1 and C2 and have been unable to

get the other tuning-fork crystals to work.
Any suggestions?




Crystal properties vary widely depending on cut, frequency,
and mode, which is why there are so many different circuits.

Those tuning fork crystals have big ESRs, like 30-50k
@ 32KHz, dropping as frequency rises.

I'd think a JFET-based Pierce, having a high-Z input,
could be the ticket for the high-ESR types. There's
one in the National FET Applications that went
something like this:

Vdd
-+-
|
|
.-.
| | R1
| |
XTAL '-'
_ C1 |
| | || |
.--|| ||---||--+
| |_| || |
| |
| |-+
| | Q1
+-----------|-+
| |
| |
.-. ===
| | R2 GND
| | 10M
'-'
|
===
GND
(created by AACircuit v1.28.4 beta 13/12/04 www.tech-chat.de)


I once made a very nasty, ugly little 32,768 Hz tuning
fork oscillator like this (it breaks just about all the
rules--for curiosity only!)

+1.5v
-+-
|
|
.-.
.----. | | R2
| | | | 1M(?)
.-. | '-'
R1 | | | |
10M | | '----+
'-' _ |
| | | X1| (R1-2 values are guesses; I don't
+--|| ||--+ remember what I actually used)
| |_| |
| |
| |/ Q1
'-------| MSPA18
|
|
|
===
GND
(created by AACircuit v1.28.4 beta 13/12/04 www.tech-chat.de)

Neither of those shows proper crystal loading--that's
crystal-specific, and up to you.

To adapt your existing circuit use a much higher
gain transistor and increase impedances--the emitter
load resistor, and, especially, the bias resistors
(they're loading the crystal something fierce right now)
--and you might get it to oscillate.

Cheers,
James Arthur




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"Robert Baer" wrote in message
...
Tom Del Rosso wrote:
Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.


And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

There are a number of free/cheap schematic drawing programs: Eagle and
Express PCB for example.
Nothing wrong with ASCII art.


In email and on Usenet, ASCII art usually requires mucking about with fonts
and spacing.

I'm on the lookout for a very simple (possibly portable) schematic app with
output files most others can open, doesn't need comprehensive libraries, I
can give a description and component list in the text.

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Ian Field wrote:

"Robert Baer" wrote in message
...
Tom Del Rosso wrote:
Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.

And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

There are a number of free/cheap schematic drawing programs: Eagle and
Express PCB for example.
Nothing wrong with ASCII art.


In email and on Usenet, ASCII art usually requires mucking about with
fonts and spacing.

I'm on the lookout for a very simple (possibly portable) schematic app
with output files most others can open, doesn't need comprehensive
libraries, I can give a description and component list in the text.

Tall order,,,,Express PCB is closest as it comes with a part library,
and being free, can be downloaded to open its "drawings".
As an example,i have attached such a drawing.


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"Robert Baer" wrote in message
...
Ian Field wrote:

"Robert Baer" wrote in message
...
Tom Del Rosso wrote:
Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.

And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

There are a number of free/cheap schematic drawing programs: Eagle and
Express PCB for example.
Nothing wrong with ASCII art.


In email and on Usenet, ASCII art usually requires mucking about with
fonts and spacing.

I'm on the lookout for a very simple (possibly portable) schematic app
with output files most others can open, doesn't need comprehensive
libraries, I can give a description and component list in the text.

Tall order,,,,Express PCB is closest as it comes with a part library,
and being free, can be downloaded to open its "drawings".
As an example,i have attached such a drawing.


Thanks.

That might be what I had before the last PC rebuild, I tend to only
re-install things when I actually need them.

Sometimes by then, I've forgotten what its called.

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On Tue, 18 Aug 2015 19:05:52 -0700, Robert Baer wrote:

Ian Field wrote:

"Robert Baer" wrote in message
...
Tom Del Rosso wrote:
Ian Field wrote:

And political rants - its got so bad, even I've taken the attitude;
"when in Rome do as Romans" once or twice.

A binaries group dedicated to schematics should be something really
special - I don't think it ever fully lived up to that, but in the
past few years its been dragged down into the sludge.

And when you started a political thing it wasn't a bad thing. I like
them for the view into UK politics. It doesn't matter if I agree.

It was never very convenient to make gifs of schematics. Most people
don't seem to have CAD readily at hand.

There are a number of free/cheap schematic drawing programs: Eagle and
Express PCB for example.
Nothing wrong with ASCII art.


In email and on Usenet, ASCII art usually requires mucking about with
fonts and spacing.

I'm on the lookout for a very simple (possibly portable) schematic app
with output files most others can open, doesn't need comprehensive
libraries, I can give a description and component list in the text.

Tall order,,,,Express PCB is closest as it comes with a part library,
and being free, can be downloaded to open its "drawings".
As an example,i have attached such a drawing.


It looks fine on my computer. I use Linux and run Express PCB under Wine.

--
Jim Mueller

To get my real email address, replace wrongname with dadoheadman.
Then replace nospam with fastmail. Lastly, replace com with us.
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