Conical inductors--still $10!...

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[Phil Hobbs]

On 2020-07-15 19:42, Phil Hobbs wrote:

On 2020-07-15 19:25, John Larkin wrote:
On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda.  He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels.  I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too.  Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB).  That helps control the effects of the pads in
between the beads.  I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base.  Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup.  But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband.  Especially at 17 cents in reels.

Oh, and 0.08 pF C_CB.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[Phil Hobbs]

On 2020-07-15 19:25, John Larkin wrote:

On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda. He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels. I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too. Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB). That helps control the effects of the pads in
between the beads. I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base. Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup. But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband. Especially at 17 cents in reels.

I guess a 5 ohm bead is no big deal.

Not at 100 MHz. The peak goes much higher--the Murata BLM1xBB beads are
pretty amazing actually.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[John Larkin]

On Wed, 15 Jul 2020 19:53:51 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 19:42, Phil Hobbs wrote:
On 2020-07-15 19:25, John Larkin wrote:
On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda.  He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels.  I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too.  Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB).  That helps control the effects of the pads in
between the beads.  I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base.  Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup.  But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband.  Especially at 17 cents in reels.

Oh, and 0.08 pF C_CB.

Cheers

Phil Hobbs

I recently replaced a couple of BFT25s with BFS17s in a 120 MHz
Colpitts oscillator. The \'25s were just too hot. BFS17 is a nice
stable part.

I might try your combo transistor and bead, just for fun.

 

[John Larkin]

On Wed, 15 Jul 2020 19:53:51 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 19:42, Phil Hobbs wrote:
On 2020-07-15 19:25, John Larkin wrote:
On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda.  He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels.  I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too.  Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB).  That helps control the effects of the pads in
between the beads.  I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base.  Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup.  But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband.  Especially at 17 cents in reels.

Oh, and 0.08 pF C_CB.

Cheers

Phil Hobbs

I recently replaced a couple of BFT25s with BFS17s in a 120 MHz
Colpitts oscillator. The \'25s were just too hot. BFS17 is a nice
stable part.

I might try your combo transistor and bead, just for fun.

 

[Phil Hobbs]

On 2020-07-15 20:16, John Larkin wrote:

On Wed, 15 Jul 2020 19:53:51 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 19:42, Phil Hobbs wrote:
On 2020-07-15 19:25, John Larkin wrote:
On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda.  He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels.  I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too.  Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB).  That helps control the effects of the pads in
between the beads.  I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base.  Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup.  But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband.  Especially at 17 cents in reels.

Oh, and 0.08 pF C_CB.


I recently replaced a couple of BFT25s with BFS17s in a 120 MHz
Colpitts oscillator. The \'25s were just too hot. BFS17 is a nice
stable part.

Plus you can still get them.

I might try your combo transistor and bead, just for fun.

I\'d be interested in hearing about the difference in the low-frequency
jitter.

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[Phil Hobbs]

On 2020-07-15 20:16, John Larkin wrote:

On Wed, 15 Jul 2020 19:53:51 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 19:42, Phil Hobbs wrote:
On 2020-07-15 19:25, John Larkin wrote:
On Wed, 15 Jul 2020 18:43:26 -0400, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:

On 2020-07-15 15:38, Simon S Aysdie wrote:
On Tuesday, July 14, 2020 at 6:01:54 AM UTC-7, Phil Hobbs wrote:
So I was chatting with my local Mini Circuits rep, who also
handles Gowanda.  He asked if I was interested in conical
inductors, which I certainly am, and how much I wanted to pay for
them.

Remembering that JL had said that the Coilcraft patent had expired,
I said \"forty cents in reels\".

Turns out that Gowanda won\'t go below $10 apiece in reels.  I
pointed out that I mostly wanted to use it with BFP640s and really
wasn\'t going to use a $10 inductor to decouple a 20-cent
transistor--especially since I can use series-connected
0201/0402/0603 inductors and beads to do almost as good a job, for
$0.12 total.

Those things are just ordinary ferrite or powdered iron, wound
with ordinary copper, and can\'t be that hard to make, so once the
patent(s) expire, it\'s hard to imagine how they can maintain that
pricing level.

What gives, do you suppose?

I suppose they are harder to make than we\'d like, although I don\'t
know why..

I have used Gowanda and Piconics. Yep--still pricy even though the
patents are out.

My latest idea is to emulate a conical with a series of 2-4 \"stepped
sizes\" of CCI ferrite core 0201,0402, 0603 inductors. I haven\'t had
time to develop a library of \"favorite combinations.\" Some people are
hesitant to use these coils above the first self resonance, but it is
fine to do so.


Yup, that\'s my trick too.  Starting with the 0402 they\'re actually beads
(Murata BLM15BA/BLM18BB).  That helps control the effects of the pads in
between the beads.  I haven\'t spent enough time on it to optimize them,
but they\'re pretty good medicine.

For stabilizing BFP640s, I like to use a single BLM15BB050SN1 in the
base.  Works like the bomb--I mostly use them for their studly beta,
Early voltage, and low noise--the Infineon model has BF=450, VAF=1000,
and RB=3 ohms, and the 1/f noise corner is pretty low considering it\'s a
40-GHz transistor.

Cheers

Phil Hobbs


The Murata datasheet is 277 pages long!

Surely a bead in the base kills Ft, which is why it\'s there. But does
it also add HF noise? Seems like it would.

Yup.  But there are a lot, a lot of good uses for a BFS17 equivalent
with a beta of 500, no Early effect to speak of, and 0.3 nV 1-Hz noise
in the flatband.  Especially at 17 cents in reels.

Oh, and 0.08 pF C_CB.


I recently replaced a couple of BFT25s with BFS17s in a 120 MHz
Colpitts oscillator. The \'25s were just too hot. BFS17 is a nice
stable part.

Plus you can still get them.

I might try your combo transistor and bead, just for fun.

I\'d be interested in hearing about the difference in the low-frequency
jitter.

Cheers

Phil Hobbs


--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510

http://electrooptical.net
http://hobbs-eo.com

 

[whit3rd]

On Wednesday, July 15, 2020 at 1:05:13 AM UTC-7, Pimpom wrote:

When I need to light-proof some part, I just use adhesive
aluminium foil. Easy. Paint and electrical tape are not
completely opaque.

There\'s a black crepe paper tape that used to be the standby for
light blockage. The crepe has the advantage of allowing
it to stretch slightly to make a good seal against uneven
surfaces.

I first used Al foil a long time ago when I needed to use several
IR receiver modules outdoors. The modules needed to receive only
radiation coming at a narrow angle from the front but the boxes
housing them were not light-proof.

 

[Bob Engelhardt]

On 7/15/2020 12:16 AM, Bill Sloman wrote:

...
It probably won\'t work on John Larkin who ...

This is getting really old. Why don\'t you give it a rest?

 

[server]

On Tuesday, July 14, 2020 at 7:19:45 PM UTC-4, david eather wrote:

On 14/07/2020 11:22 am, bloggs.fredbloggs.fred@gmail.com wrote:

Maybe we can ask some foreign royalty to come and run the place like they did back in the day when they had absolutely no confidence in self-government.

Largest monthly deficit of all time: $864B for the month of June alone. This statistic is going to look good compared to what\'s coming.

https://www.cnbc.com/2020/07/13/us-budget-deficit-hits-all-time-high-of-864-billion-in-june.html

World\'s fifth largest economy goes into total shutdown:

https://www.youtube.com/watch?v=WkyV54xf-yc

WHO executive director criticizes U.S. for weak and incompetent leadership, and who could possibly disagree:

https://www.youtube.com/watch?v=R-fFY5qbh8w







Not really fair to criticize Trump on running a deficit in the time of
covid19. It might be valid if it clearly did not address covid.

Of course it\'s fair if the money is used to ameliorate the damage resulting from his mismanagement of the pandemic. To this day he continues to exacerbate the situation by being an example of going against his own public health agencies and their advice to avoid infection.

 

[legg]

On Tue, 14 Jul 2020 21:25:19 -0700 (PDT), Bill Sloman
<bill.sloman@ieee.org> wrote:

From today\'s Proceedings of the (US) National Academy of Sciences.

https://www.pnas.org/content/pnas/early/2020/06/16/1918455117.full.pdf

Currently being a smoker is the best single predictor, albeit not a very good one.

The article lists 57 others, which are all even weaker. Having been a smoker doesn\'t help - it is third, behind \"a history of divorce\".

It\'s a prediction of mortality (ie being dead), not of
suicide.

Smokers may be wondering . . . . promises, promises . . .

RL

 

[legg]

On Tue, 14 Jul 2020 21:25:19 -0700 (PDT), Bill Sloman
<bill.sloman@ieee.org> wrote:

From today\'s Proceedings of the (US) National Academy of Sciences.

https://www.pnas.org/content/pnas/early/2020/06/16/1918455117.full.pdf

Currently being a smoker is the best single predictor, albeit not a very good one.

The article lists 57 others, which are all even weaker. Having been a smoker doesn\'t help - it is third, behind \"a history of divorce\".

It\'s a prediction of mortality (ie being dead), not of
suicide.

Smokers may be wondering . . . . promises, promises . . .

RL

 

[server]

On Tuesday, July 14, 2020 at 6:16:34 PM UTC-4, Ricketty C wrote:

On Tuesday, July 14, 2020 at 3:54:23 PM UTC-4, bloggs.fre...@gmail.com wrote:
On Tuesday, July 14, 2020 at 2:25:18 PM UTC-4, Ricketty C wrote:
On Tuesday, July 14, 2020 at 8:52:24 AM UTC-4, bloggs.fre...@gmail.com wrote:
On Monday, July 13, 2020 at 11:45:01 PM UTC-4, Ricketty C wrote:
On Monday, July 13, 2020 at 9:22:44 PM UTC-4, bloggs.fre...@gmail..com wrote:
Maybe we can ask some foreign royalty to come and run the place like they did back in the day when they had absolutely no confidence in self-government.

Largest monthly deficit of all time: $864B for the month of June alone. This statistic is going to look good compared to what\'s coming.

https://www.cnbc.com/2020/07/13/us-budget-deficit-hits-all-time-high-of-864-billion-in-june.html

World\'s fifth largest economy goes into total shutdown:

https://www.youtube.com/watch?v=WkyV54xf-yc

WHO executive director criticizes U.S. for weak and incompetent leadership, and who could possibly disagree:

https://www.youtube.com/watch?v=R-fFY5qbh8w

I\'m no Trump fan, but we have to acknowledge reality. The deficit from the stimulus packages is no more Trump\'s fault than the deficits from Obama era stimulus packages were his fault. Both Presidents made the decision to save the economy with massive spending. One difference is that Obama walked into the crisis that had already started with limited action by the government. Trump walked into a well functioning economy with a dropping deficit and managed to run it up each year.

But the really massive blast from the coronavirus will make the prior years look like chump change. This may be the final straw that breaks the camel\'s back. I really don\'t know how we can continue to run up the debt without paying on the principal year after year. It\'s going to be really ugly by the time the Democrats are in power next year.

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

Insofar as he mismanaged the pandemic, everything is directly his fault. Then this latest idiocy of going against the established science of the requirement to wear a mask in public, and going ever further to disparage one of the top infectious disease experts in the world, are grounds for impeachment. The only way GOP can salvage this situation is to run a different candidate because this joke is going to lose. He trails Biden by something like 25 points in Arizona, Texas and Florida. If he\'s a loser in those hellholes, he\'s a loser everywhere.

Nothing can be grounds for Impeachment and removal from office because the Republicans control the Senate. Trump was right in that he could shoot someone in Times Square and not get removed from office.

All this will change in January.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

This one is sound, and you can see the data tracking the pandemic and economic downturn in time. If GOP had any sense, they would pull Trump\'s candidacy and run someone real. Otherwise it will be one of their worst defeats in history.

https://projects.economist.com/us-2020-forecast/president

Just like with Tesla stock at 1500 I won\'t buy it and I won\'t go short either, I won\'t take a bet on Trump losing the election with four months to go yet. If a vaccine for the virus is found and millions of doses distributed in a way that allows him to take credit (which will happen even if there is no way) he could regain enough of his not quite as loyal followers. Or some other national crisis where he strong talk makes it look like he has an impact... anything can happen yet. It\'s not like he is accused of grabbing women by the pussy!

That\'s one thing that amazes me. Trump literally can say anything he wants and a huge following finds some way to rationalize it.

Amazing.

I will say there are a lot more ways for him to lose this election than win it. The Supreme Court just did him a favor by NOT hearing an Obamacare case. If he is successful in causing the repeal of Obamacare I guarantee that would be the final nail in his coffin. The US pretty much loves having health insurance and the Republicans are doing themselves a disservice by trying to do away with it rather than making it more universal. We should find ways to improve things rather than just tearing down.

--

Rick C.

-- Get 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209

The Obamacare case is a distraction for the mASSES, it has no chance of invalidating the law. What is going to finish him is the permanent loss of some big players in the American business sector, and millions of jobs. Global warming isn\'t far enough along to cause the kind of catastrophe the mASSES will notice- not yet anyway. The massive heat waves are good for only a few hundred thousand deaths which are mostly silent. It\'s going to take something really big with people dropping dead in the streets by the millions to get any attention.

 

[server]

On Tuesday, July 14, 2020 at 6:16:34 PM UTC-4, Ricketty C wrote:

On Tuesday, July 14, 2020 at 3:54:23 PM UTC-4, bloggs.fre...@gmail.com wrote:
On Tuesday, July 14, 2020 at 2:25:18 PM UTC-4, Ricketty C wrote:
On Tuesday, July 14, 2020 at 8:52:24 AM UTC-4, bloggs.fre...@gmail.com wrote:
On Monday, July 13, 2020 at 11:45:01 PM UTC-4, Ricketty C wrote:
On Monday, July 13, 2020 at 9:22:44 PM UTC-4, bloggs.fre...@gmail..com wrote:
Maybe we can ask some foreign royalty to come and run the place like they did back in the day when they had absolutely no confidence in self-government.

Largest monthly deficit of all time: $864B for the month of June alone. This statistic is going to look good compared to what\'s coming.

https://www.cnbc.com/2020/07/13/us-budget-deficit-hits-all-time-high-of-864-billion-in-june.html

World\'s fifth largest economy goes into total shutdown:

https://www.youtube.com/watch?v=WkyV54xf-yc

WHO executive director criticizes U.S. for weak and incompetent leadership, and who could possibly disagree:

https://www.youtube.com/watch?v=R-fFY5qbh8w

I\'m no Trump fan, but we have to acknowledge reality. The deficit from the stimulus packages is no more Trump\'s fault than the deficits from Obama era stimulus packages were his fault. Both Presidents made the decision to save the economy with massive spending. One difference is that Obama walked into the crisis that had already started with limited action by the government. Trump walked into a well functioning economy with a dropping deficit and managed to run it up each year.

But the really massive blast from the coronavirus will make the prior years look like chump change. This may be the final straw that breaks the camel\'s back. I really don\'t know how we can continue to run up the debt without paying on the principal year after year. It\'s going to be really ugly by the time the Democrats are in power next year.

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

Insofar as he mismanaged the pandemic, everything is directly his fault. Then this latest idiocy of going against the established science of the requirement to wear a mask in public, and going ever further to disparage one of the top infectious disease experts in the world, are grounds for impeachment. The only way GOP can salvage this situation is to run a different candidate because this joke is going to lose. He trails Biden by something like 25 points in Arizona, Texas and Florida. If he\'s a loser in those hellholes, he\'s a loser everywhere.

Nothing can be grounds for Impeachment and removal from office because the Republicans control the Senate. Trump was right in that he could shoot someone in Times Square and not get removed from office.

All this will change in January.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

This one is sound, and you can see the data tracking the pandemic and economic downturn in time. If GOP had any sense, they would pull Trump\'s candidacy and run someone real. Otherwise it will be one of their worst defeats in history.

https://projects.economist.com/us-2020-forecast/president

Just like with Tesla stock at 1500 I won\'t buy it and I won\'t go short either, I won\'t take a bet on Trump losing the election with four months to go yet. If a vaccine for the virus is found and millions of doses distributed in a way that allows him to take credit (which will happen even if there is no way) he could regain enough of his not quite as loyal followers. Or some other national crisis where he strong talk makes it look like he has an impact... anything can happen yet. It\'s not like he is accused of grabbing women by the pussy!

That\'s one thing that amazes me. Trump literally can say anything he wants and a huge following finds some way to rationalize it.

Amazing.

I will say there are a lot more ways for him to lose this election than win it. The Supreme Court just did him a favor by NOT hearing an Obamacare case. If he is successful in causing the repeal of Obamacare I guarantee that would be the final nail in his coffin. The US pretty much loves having health insurance and the Republicans are doing themselves a disservice by trying to do away with it rather than making it more universal. We should find ways to improve things rather than just tearing down.

--

Rick C.

-- Get 1,000 miles of free Supercharging
-- Tesla referral code - https://ts.la/richard11209

The Obamacare case is a distraction for the mASSES, it has no chance of invalidating the law. What is going to finish him is the permanent loss of some big players in the American business sector, and millions of jobs. Global warming isn\'t far enough along to cause the kind of catastrophe the mASSES will notice- not yet anyway. The massive heat waves are good for only a few hundred thousand deaths which are mostly silent. It\'s going to take something really big with people dropping dead in the streets by the millions to get any attention.

 

[mpm]

On Wednesday, July 15, 2020 at 12:36:26 AM UTC-4, Ricketty C wrote:
> I was thinking of using a green LED to limit a measured voltage on the ADC of an MCU.

In the distant past, I have NOT had much success with using diodes to clamp ADC inputs. (Unless you can afford to jettison 4 or 5 bits, or more, of resolution?) The last time I tried it, I found that the diodes (Zener\'s) really affected the voltage much too early in the curve and I couldn\'t calibrate it out with reasonable effort. I ended up just taking them out, for the much improved response.

But maybe that\'s not what you\'re doing here. (?)
And I don\'t think it is, so just mentioning the above.

As for green LED currents, we recently started using one that is amazingly bright at only 330 microamps. I\'ll send you the part# when I get to the office.

 

[mpm]

On Wednesday, July 15, 2020 at 12:36:26 AM UTC-4, Ricketty C wrote:
> I was thinking of using a green LED to limit a measured voltage on the ADC of an MCU.

In the distant past, I have NOT had much success with using diodes to clamp ADC inputs. (Unless you can afford to jettison 4 or 5 bits, or more, of resolution?) The last time I tried it, I found that the diodes (Zener\'s) really affected the voltage much too early in the curve and I couldn\'t calibrate it out with reasonable effort. I ended up just taking them out, for the much improved response.

But maybe that\'s not what you\'re doing here. (?)
And I don\'t think it is, so just mentioning the above.

As for green LED currents, we recently started using one that is amazingly bright at only 330 microamps. I\'ll send you the part# when I get to the office.

 

[Bill Sloman]

On Wednesday, July 15, 2020 at 10:05:22 PM UTC+10, legg wrote:

On Tue, 14 Jul 2020 21:25:19 -0700 (PDT), Bill Sloman
bill.sloman@ieee.org> wrote:

From today\'s Proceedings of the (US) National Academy of Sciences.

https://www.pnas.org/content/pnas/early/2020/06/16/1918455117.full.pdf

Currently being a smoker is the best single predictor, albeit not a very good one.

The article lists 57 others, which are all even weaker. Having been a smoker doesn\'t help - it is third, behind \"a history of divorce\".

It\'s a prediction of mortality (ie being dead), not of
suicide.

Oops. I didn\'t read it carefully enough. thanks for the correction.

<snip>

--
Bill Sloman, Sydney

 

[Bill Sloman]

On Wednesday, July 15, 2020 at 10:05:22 PM UTC+10, legg wrote:

On Tue, 14 Jul 2020 21:25:19 -0700 (PDT), Bill Sloman
bill.sloman@ieee.org> wrote:

From today\'s Proceedings of the (US) National Academy of Sciences.

https://www.pnas.org/content/pnas/early/2020/06/16/1918455117.full.pdf

Currently being a smoker is the best single predictor, albeit not a very good one.

The article lists 57 others, which are all even weaker. Having been a smoker doesn\'t help - it is third, behind \"a history of divorce\".

It\'s a prediction of mortality (ie being dead), not of
suicide.

Oops. I didn\'t read it carefully enough. thanks for the correction.

<snip>

--
Bill Sloman, Sydney

 

[Bill Sloman]

On Wednesday, July 15, 2020 at 10:01:28 PM UTC+10, Bob Engelhardt wrote:

On 7/15/2020 12:16 AM, Bill Sloman wrote:
...
It probably won\'t work on John Larkin who ...

This is getting really old. Why don\'t you give it a rest?

John Larkin has been having a lot of trouble reading Covid-19 statistics correctly over the past few months.

I\'ve been amazed by conclusions he has managed to draw from numbers that means something very different to me. Rick C has noticed this too. In this particular case the we had a prize example of the problem in-house.

--
Bill Sloman, Sydney

 

[server]

On Wed, 15 Jul 2020 06:11:08 -0700 (PDT), mpm <mpmillard@aol.com>
wrote:

On Wednesday, July 15, 2020 at 12:36:26 AM UTC-4, Ricketty C wrote:
I was thinking of using a green LED to limit a measured voltage on the ADC of an MCU.

In the distant past, I have NOT had much success with using diodes to clamp ADC inputs. (Unless you can afford to jettison 4 or 5 bits, or more, of resolution?) The last time I tried it, I found that the diodes (Zener\'s) really affected the voltage much too early in the curve and I couldn\'t calibrate it out with reasonable effort. I ended up just taking them out, for the much improved response.

But maybe that\'s not what you\'re doing here. (?)
And I don\'t think it is, so just mentioning the above.

As for green LED currents, we recently started using one that is amazingly bright at only 330 microamps. I\'ll send you the part# when I get to the office.

I have some green LEDs that are visible in average room light at 1 uA,
and visible to a dark-adapted eye, up close, at 1 nA. Had to get out
of bed at 2AM in Truckee to measure that.

A fun experiment would be to use a PMT and some signal averaging to
see if any photons are emitted at, say, 1 pA.

One of my most common causes of writing ECOs against new designs is
that the LEDs are too bright. Gotta do that again today.

There are many better ways to clamp an ADC input than using one diode
to ground.

I wonder why Ricky doesn\'t measure an LED himself.



--

John Larkin Highland Technology, Inc

Science teaches us to doubt.

Claude Bernard