audio recording on IC -help wanted

Ultrasonic Cleaner U7820A Clean Discs, Jewelry and Watches, Eye Care,
Daily Personal Care


Advancements
Significant product advancement based on previous model CD-2800
and CD-3800
Tightened lid design for effective noise reduction
Improved products durability and safety by water resistance
capability enhancement



Features
Cleans discs such as CDs, VCDs, DVDs, etc.
Use only plain tap water to clean
Remove dirts effectively; results can be seen with bare eyes!
Clean articles to shine just like new


Applications
Discs Cleaning
CDs, DVDs, VCDs, etc.
Jewelry and Watches
Necklaces, Earrings, Rings, Bracelets, Coins, Watches Straps and
Bands etc.
Eye Care
Glasses, Sunglasses, Contact Lens Accessories
Daily Personal Care
Dentures, Combs, Toothbrushes, Table-wares

 

[Winfield Hill]

Joerg wrote:

Didi wrote:
Pretty darn good, I just wonder why it levels off below 30Hz or so,
Anyhow, seems there is hope here ...

It gets better than that. They also make the 2N5566, which is a dual
2N4393 or so - have used them as well.

They still make those in the TO-71 can? Haven't seen them in a long,
long time.

At low frequencies - and being reasonably fast for you - there is
nothing better to find. The 2N4416 is a known low-noise FET, but
at higher frequencies, not where you need it to be (it is the choice
of Ge detector manufacturers, works cooled down to apr. -90 C to
achieve lowest noise... - but at much higher speeds of interest).

Yep, the 4416 ain't too bad but seems higher:
http://www.vishay.com/docs/70242/70242.pdf

Just wondering why the 2N4391 levels off for lower frequencies
(somehow doesn't make sense) and the others don't. I bet
Winfield Hill would know the answer. Win?

--
Regards, Joerg

What, me? I dunno, something to do with a draftsman?

 

[Gary L. Woodruff]

Howdy all,
I am trying to track down a replacement for a transistor(?) with
the following #'s:

D829 (K)
6J2

I would like to replace it with one able to handle a higher current as I
am told they are a frequent replacement item in the circuit. Any info
would be helpful.

Thanks, Gary

 

[Joerg]

Spehro Pefhany wrote:

On Wed, 02 Jan 2008 11:20:44 -0800, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 12:23:18 -0500, Fred Bloggs <nospam@nospam.com
wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:



Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.
The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.
Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF


Best regards,
Spehro Pefhany
Hmmmm, would not want that low threshold 0.65V thing around bipolar TTL,
may burn up on turn-off.
Around bipolar TTL? <checks calendar> whew, 2008, not 1982.. ;-)

Don't know if this ever made it to America: Siemens had artificially
slowed logic chips, called "langsame stoersichere Logik" or slow and
interference-insensitive logic devices. Those could make for some
spectacular SOA burn-outs. Seriously, I had to debug designs where they
drove transistors directly. Phsssst ... BANG.


Was that like HNIL? Power-hungry, 15V (?), very tough devices.

Yeah, 15V, threshold brought to 6V or thereabouts via zener, like this one:

http://pdf1.alldatasheet.com/datasheet-pdf/view/158177/ETC/FZH215S.html

--
Regards, Joerg

http://www.analogconsultants.com/

 

[Spehro Pefhany]

On Wed, 02 Jan 2008 22:50:20 GMT, the renowned Joerg
<notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 11:20:44 -0800, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 12:23:18 -0500, Fred Bloggs <nospam@nospam.com
wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:



Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.
The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.
Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF


Best regards,
Spehro Pefhany
Hmmmm, would not want that low threshold 0.65V thing around bipolar TTL,
may burn up on turn-off.
Around bipolar TTL? <checks calendar> whew, 2008, not 1982.. ;-)

Don't know if this ever made it to America: Siemens had artificially
slowed logic chips, called "langsame stoersichere Logik" or slow and
interference-insensitive logic devices. Those could make for some
spectacular SOA burn-outs. Seriously, I had to debug designs where they
drove transistors directly. Phsssst ... BANG.


Was that like HNIL? Power-hungry, 15V (?), very tough devices.


Yeah, 15V, threshold brought to 6V or thereabouts via zener, like this one:

http://pdf1.alldatasheet.com/datasheet-pdf/view/158177/ETC/FZH215S.html

Here's Motorola's family.. I don't think it was ever very popular.
Slow, expensive etc., but would have saved more than a few industrial
products from flaky-ness.

http://pdf1.alldatasheet.com/datasheet-pdf/view/107778/ETC/MC663/datasheet.pdf



Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[Joerg]

Spehro Pefhany wrote:

On Wed, 02 Jan 2008 22:50:20 GMT, the renowned Joerg
notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 11:20:44 -0800, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 12:23:18 -0500, Fred Bloggs <nospam@nospam.com
wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:



Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.
The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.
Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF


Best regards,
Spehro Pefhany
Hmmmm, would not want that low threshold 0.65V thing around bipolar TTL,
may burn up on turn-off.
Around bipolar TTL? <checks calendar> whew, 2008, not 1982.. ;-)

Don't know if this ever made it to America: Siemens had artificially
slowed logic chips, called "langsame stoersichere Logik" or slow and
interference-insensitive logic devices. Those could make for some
spectacular SOA burn-outs. Seriously, I had to debug designs where they
drove transistors directly. Phsssst ... BANG.

Was that like HNIL? Power-hungry, 15V (?), very tough devices.

Yeah, 15V, threshold brought to 6V or thereabouts via zener, like this one:

http://pdf1.alldatasheet.com/datasheet-pdf/view/158177/ETC/FZH215S.html


Here's Motorola's family.. I don't think it was ever very popular.
Slow, expensive etc., but would have saved more than a few industrial
products from flaky-ness.

http://pdf1.alldatasheet.com/datasheet-pdf/view/107778/ETC/MC663/datasheet.pdf

That page errors. But yes, these slow chips were often muffling flaws in
truly horrible designs. Anything that collapses when using faster chips
is IMHO shoddy design.

--
Regards, Joerg

http://www.analogconsultants.com/

 

On 13 Jan, 08:47, Franc Zabkar <fzab...@iinternode.on.net> wrote:

On Mon, 12 Jan 2009 06:30:35 -0800 (PST), te...@hotmail.com put finger
to keyboard and composed:





Hi,
Just to fill you in.....

I’m using the resistors as a heating pad to warm a QFP 64 processor. I
believe this chip is approx 14mm x 14mm.
This chip controls the dashboard gauges & warning lights in my car.
When the chip is cold the gauges don’t work properly…once the chip has
warmed up a little everything works fine.
If the ambient temperature is below approx 10 degrees C the chip has
this fault condition, if the temperature is more than 10 everything is
fine.
The problem is definitely with the processor & not anything else. I’m
very limited by space as obviously the processor is inside the
dashpod.

The resistor  heating pad will be bonded to the processor & will have
trailing leads to come out of the dashpod.
The heater will only be in use for a few seconds (to warm the
processor enough to work), I will control this via a switch initially
so I can see how long the heater has to be on before the chip starts
to work, obviously this will vary depending on ambient temperature.
Eventually I could use a timing circuit to do this.
I suppose if I knew what I was doing I could build some form of
temperature control into the timer circuit so if the temperature was
over 10 degrees the heater wouldn’t operate.

Regards.

IIRC, you wrote that the bidirectional reset pin was cycling low when
an internal watchdog timer timed out. Maybe you could set up an
external timer for your heater which runs for 3 seconds, say, and use
the reset pulse to retrigger this timer. Once the uP is up and
running, the reset output will be inactive, and the heater timer will
time out.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.- Hide quoted text -

- Show quoted text -

Hi,
Your idea sounds excellent, but as I'm learning as I go with
electronics a manual switch will have to do until I figure out how to
build a simple timer circuit.

Thanks for the suggestion though.

Regards.

 

[Joerg]

Spehro Pefhany wrote:

On Wed, 02 Jan 2008 12:23:18 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Spehro Pefhany wrote:
On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:



Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.

The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.

Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF


Best regards,
Spehro Pefhany
Hmmmm, would not want that low threshold 0.65V thing around bipolar TTL,
may burn up on turn-off.

Around bipolar TTL? <checks calendar> whew, 2008, not 1982.. ;-)

Don't know if this ever made it to America: Siemens had artificially
slowed logic chips, called "langsame stoersichere Logik" or slow and
interference-insensitive logic devices. Those could make for some
spectacular SOA burn-outs. Seriously, I had to debug designs where they
drove transistors directly. Phsssst ... BANG.

--
Regards, Joerg

http://www.analogconsultants.com/

 

[Spehro Pefhany]

On Wed, 02 Jan 2008 11:20:44 -0800, Joerg
<notthisjoergsch@removethispacbell.net> wrote:

Spehro Pefhany wrote:
On Wed, 02 Jan 2008 12:23:18 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Spehro Pefhany wrote:
On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:



Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.

The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.

Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF


Best regards,
Spehro Pefhany
Hmmmm, would not want that low threshold 0.65V thing around bipolar TTL,
may burn up on turn-off.

Around bipolar TTL? <checks calendar> whew, 2008, not 1982.. ;-)


Don't know if this ever made it to America: Siemens had artificially
slowed logic chips, called "langsame stoersichere Logik" or slow and
interference-insensitive logic devices. Those could make for some
spectacular SOA burn-outs. Seriously, I had to debug designs where they
drove transistors directly. Phsssst ... BANG.

Was that like HNIL? Power-hungry, 15V (?), very tough devices.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[www.interfacebus.com]

http://www.interfacebus.com/

A listing of Electronic Engineering Component and OEM Equipment
Manufactures.
http://www.interfacebus.com/Components.html
http://www.interfacebus.com/OEM_Equipment.html

Providing detailed electronic design information regarding computer
Interfaces
http://www.interfacebus.com/Interface_Bus_Types.html

 

DF13-5S-1.25V datasheet and pdf http://www.chinaicmart.com/series-DF1/DF13-5S-1.25V.html

Features
1. Miniature Size
Designed in the low profile at mounting height 5.8mm.(SMT mounting
straight type)(For DIP type, the mounting height is to 5.3mm to the
straight and 3.6mm at the right angle)
2. Multi-contact
The double row type achieves the multi-contact up to 40 contacts, and
secures 30% higher density in the mounting area, compared with the
single row type.
3. Correspond to Automatic Mounting
The header provides the grade with the vacuum absorption area, and
secures automatic mounting by the embossed
tape packaging. In addition, the tube packaging can be selected.
4. Integral Basic Function Despite Miniature Size
The header is designed in a scoop-proof box structure, and completely
prevents mis-insertion. In addition, the surface mounting (SMT) header
is equipped with the metal fitting to prevent solder peeling.
Applications
Note PC, mobile terminal, miniature type business equipment,and other
various consumer equipment, including video camera

 

[Kevin Criqui]

Quick follow up. I never did find 27.12MHz oscillators, but Mouser has
27.12MHz crystals in stock right now. It says NON STANDARD VALUE so I'm
guessing they won't get more when the current stock runs out.

http://www.mouser.com/Search/ProductDetail.aspx?qs=v0cjL%2fPx3nwYb72W1t17Ag%3d%3d

Kevin

 

[Joerg]

Spehro Pefhany wrote:

On Wed, 02 Jan 2008 10:26:53 -0500, Fred Bloggs <nospam@nospam.com
wrote:


Dave Platt wrote:
In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:


Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.

The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.

Or, if your nostalgia for the eighties is limited, use something like
this modern 37-cent part:

http://www.onsemi.com/pub/Collateral/NTR4501N-D.PDF

Can be had for under 15c and is even 3.3V logic compliant. Nice part.

--
Regards, Joerg

http://www.analogconsultants.com/

 

[Fred Bloggs]

Dave Platt wrote:

In article <13nm4rtdmbl0l5d@corp.supernews.com>,
Robert Baer <robertbaer@localnet.com> wrote:


Those datashits are crap the way eveyone seems to misuse them.
The original 2N2222 was made for *small* signal work, and a practical
max current of about 100mA.
And even at that current, there is a large Vce drop.
Forcing a beta of five or less to get a "low" Vce is not a reasonable
way to use a transistor.


The OP might look into the 2N2222's big brother, the 2N2219
(preferably the 2N2219A). According to a gent I know who did a lot of
solid-state design for GE some years back, the 2N2219 uses a die
similar to the 2N2222, but it's spec'ed as a medium-current switch and
as it's in a TO-39 can it has better heat dissipation capability than
the 2N2222. He described it as a "brutal" part - very useful for
driving lamps and relays.

One data sheet I have on it states an absolute-max of 800 mA collector
current, 800 mW with Tamb=25C (and absolute-max of 3 watts if you can
hold the case temperature to 25C), beta in the 150 mA collector-
current range is between 100 and 300, Vce saturates at around .3 volts
(all for the 2N2219A part).

Not modern, not elegant, but it has a long and honorable service
record. Dunno how easy they are to find these days... I bought a
whole bagful from a surplus dealer a couple of years ago.

Makes no sense to use a pricey TO-39, there are now things like TIP30 in
TO-220, with specified SOA to handle his lamp turn-on surge, and the
bigger package means no heatsink required. Also, that one has Hfe nearly
100 typically at 250mA steady state, meaning he can drive it with any
TTL gate.

 

[mc]

"JeffM" <jeffm_@email.com> wrote in message
news:1181523118.516200.51310@p47g2000hsd.googlegroups.com...

mc wrote:
Speaking of which, has the Pasadena C&H store actually closed yet?

Still barely hanging on, last I heard.
http://www.google.com/search?q=cache:as6dLnrn_sAJ:www.candhsales.biz/cgi-bin/shop991/shop.pl/page%3Dstart_shopping.htm+Store.Hours+phone.orders+Wednesdays.Saturdays+CLOSED

Now that's a rep--when somebody down in Athens
knows about a place on the Left Coast.

I used to live on Rosemead Boulevard. (24 years ago!) Revisited the old
neighborhood in January and found C&H shutting down.

 

[Tom Potter]

"Dear Leader" <spamless@spamless.com> wrote in message
news:46ce148f$0$97218$892e7fe2@authen.yellow.readfreenews.net...

"Tom Potter" <tdp1001@yahoo.com> wrote in message
news:46cc5dd6$0$8173$88260bb3@free.teranews.com...

"Dear Leader" <spamless@spamless.com> wrote in message
news:46cc3b78$0$97274$892e7fe2@authen.yellow.readfreenews.net...

"Tom Potter" <tdp1001@yahoo.com> wrote in message
news:46cc26cc$0$16357$88260bb3@free.teranews.com...

A high resolution, handheld, RADAR system can be made

already done. google for it.
you should get out more, read books and mags.

I assume that "Dear Leader" is talking about
hand-held, police RADAR
used to determine the speed of cars.

If not, hopefully he will provide references to where
a hand-held RADAR is used to plot one's position
and the positions of moving targets
on a Goggle-like map.

There is a world of difference between what I propose,
and a hand held Doppler RADAR.

what do you think a police radar is, dummy?

It is interesting to see that "Dear Leader"
thinks [sic] that police RADAR has a PPI, GoogleMaps-like display,
and can be used to navigate much like a GPS Receiver.

I suggest that she do a Google search on "police RADAR"
and GPS so she can learn the difference.

Although it appears to be too sophisticated for her,
she might also do Google searches on "Gold Codes",
"Barker code", "cross-correlation", "digital communications",
"GPS and quasi-random" and "Doppler RADAR"
so she can begin to comprehend the difference.

--
Tom Potter

*** Time Magazine Person of the Year 2006 ***
*** May 2007 Anti-Bigot Award ***
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http://tom-potter.blogspot.com




--
Posted via a free Usenet account from http://www.teranews.com

 

[Sjouke Burry]

Don Pearce wrote:

On Sun, 01 Jul 2007 10:26:04 GMT, "Arfa Daily"
arfa.daily@ntlworld.com> wrote:

"Mr.T" <MrT@home> wrote in message
news:46874146$0$14825$afc38c87@news.optusnet.com.au...
"Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
news:cPuhi.7368$nE2.4160@newsfe3-win.ntli.net...
There seems to be a point being missed here though. Governments are
trying
to force these things on us. So they are now appearing in shops at very
cheap prices. That includes both 'reputable' makes, which must be being
subsidised by the manufacturers or somebody in the supply chain, as well
as
'no names' that probably are Chinese manufactured shit. How is Joe Public
to
know which he is buying, when they are all the same price?
In Australia the "reputable makes" are simply rebadged Chinese shit as
well.
Are you sure you are not simply being fooled as well?

MrT.


That's very possible, and illustrates the point that if we, as people 'in
the know' can't tell if we are being sold genuine 'good' ones at a
subsidised price, badged Chinese shit at what *looks* like a good price, or
genuine Chinese shit at what's probably a realistic price, then how is Joe
Public going to stand any chance ?

We can all be fooled. Our governments do it to us all the time ...

Arfa


well, here in the UK the country of origin must be marked on the pack.

d

And what if they are repacked in a remote corner

of your country.
We have had that done to real DUTCH apples, from
Italy ect.
And your supplying country from the east is quite
willing to put any text on the device and package......

 

[Lostgallifreyan]

"Mr.T" <MrT@home> wrote in
news:4695f472$0$19339$afc38c87@news.optusnet.com.au:

Moonlight's color temperature at its highest is about 4000.

I haven't seen a reference for this, but even assuming it is so, it's
still higher than many people here prefer it would seem.

Nice way to test: Take a camera and tripod, do a long exposure shot of a
moonlit scene. Then view the phtot on a monitor in a context you know. I
haven't done this but I think it will bear out the claim that the moon's
light is brownish, as it looks when you look directly at it. The blue comes
from a combination of scattered light and scotopic sensitivity to the blue
part of its spectrum.

 

[Aurel]

I am looking for an article that appeared in the ETI June 1983 issue.
The article is about a Bipolar Prom Burner (#688).
Does anyone have this article (or wiring diagram) available as I would
like
to build that project.
Thanks

 

[Jon Elson]

Hello, all,

I just got a really nice servo motor on eBay, and it has
military bayonet connectors on it, PT02E-14-18P and
PT02E-14-5P. I dug through my junk box and couldn't find a mate
to these. (I did have some 14-19, but no 14-18.)

Does anyone know if there is a plastic or low-cost version of
these connectors? I looked up the mating part in Digi-Key and
Mouser, and they run about $30 each, in the real military-grade
metal shell version. I know the AMP CPC connectors are quite
affordable. The parts I need would be PT06A-14-18S and
PT06A-14-5S (could be PT06E but those would be more expensive,
I'd guess.)

Thanks,

Jon