Running LED from Mains power

[default]

On Sat, 18 Jul 2009 07:38:44 +1000, David Eather <eather@tpg.com.au>
wrote:

Rich Grise wrote:
On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht
Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative
--
So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich


I bet the iron losses in the transformer were still around 10ma. i.e. no
improvement on driving the led direct from the mains

From the data sheet:
• Primary Exciting Current: 20mA (max.)
--

 

[John Fields]

On Sat, 18 Jul 2009 09:23:09 -0400, default <default@defaulter.net>
wrote:

On Fri, 17 Jul 2009 18:08:14 GMT, Rich Grise <richgrise@example.net
wrote:

On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht

Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative
--

So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich
see the description?

Heavy Duty Power Transformers XFMR FIL

Under that the word "big"

"do to size or weight, this product disqualifies the order for
discounted shipping rates outside . . . "

How big is that thumb of yours anyhow?

---
From the data sheet:

L = 1.85"
W = 1.02"
H = 1.05"

The length of the core, excluding the mounting ears, is 1.18". making
the volume of the core about 1.26 cubic inches.

Do you call that "big"?

JF

 

[default]

On Sat, 18 Jul 2009 09:14:16 -0500, John Fields
<jfields@austininstruments.com> wrote:

On Sat, 18 Jul 2009 09:23:09 -0400, default <default@defaulter.net
wrote:

On Fri, 17 Jul 2009 18:08:14 GMT, Rich Grise <richgrise@example.net
wrote:

On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht

Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative
--

So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich
see the description?

Heavy Duty Power Transformers XFMR FIL

Under that the word "big"

"do to size or weight, this product disqualifies the order for
discounted shipping rates outside . . . "

How big is that thumb of yours anyhow?

---
From the data sheet:

L = 1.85"
W = 1.02"
H = 1.05"

The length of the core, excluding the mounting ears, is 1.18". making
the volume of the core about 1.26 cubic inches.

Do you call that "big"?

JF
No. I wouldn't call that big. Not for a 60 HZ power transformer.

That's what has me wonder about the shipping comment on the Mouser
site. Hovering the curser over the word "big" gives the shipping
restriction message.
--

 

[John Fields]

On Sat, 18 Jul 2009 10:36:30 -0400, default <default@defaulter.net>
wrote:

On Sat, 18 Jul 2009 09:14:16 -0500, John Fields
jfields@austininstruments.com> wrote:

On Sat, 18 Jul 2009 09:23:09 -0400, default <default@defaulter.net
wrote:

On Fri, 17 Jul 2009 18:08:14 GMT, Rich Grise <richgrise@example.net
wrote:

On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht

Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative
--

So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich
see the description?

Heavy Duty Power Transformers XFMR FIL

Under that the word "big"

"do to size or weight, this product disqualifies the order for
discounted shipping rates outside . . . "

How big is that thumb of yours anyhow?

---
From the data sheet:

L = 1.85"
W = 1.02"
H = 1.05"

The length of the core, excluding the mounting ears, is 1.18". making
the volume of the core about 1.26 cubic inches.

Do you call that "big"?

JF
No. I wouldn't call that big. Not for a 60 HZ power transformer.

That's what has me wonder about the shipping comment on the Mouser
site. Hovering the curser over the word "big" gives the shipping
restriction message.

---
I think it's a Mouser error since: "Heavy duty power transformer"
conjures up an image of something big and heavy.

JF

 

[Don Klipstein]

In article <2bn3659pfgip10kntb71gnbvmgf0no510h@4ax.com>, default wrote:

On Sat, 18 Jul 2009 09:14:16 -0500, John Fields
jfields@austininstruments.com> wrote:

On Sat, 18 Jul 2009 09:23:09 -0400, default <default@defaulter.net
wrote:

On Fri, 17 Jul 2009 18:08:14 GMT, Rich Grise <richgrise@example.net
wrote:

<SNIP schematic, etc.>

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

see the description?

Heavy Duty Power Transformers XFMR FIL

Under that the word "big"

"do to size or weight, this product disqualifies the order for
discounted shipping rates outside . . . "

How big is that thumb of yours anyhow?

From the data sheet:

L = 1.85"
W = 1.02"
H = 1.05"

The length of the core, excluding the mounting ears, is 1.18". making
the volume of the core about 1.26 cubic inches.

Do you call that "big"?

JF
No. I wouldn't call that big. Not for a 60 HZ power transformer.

That's what has me wonder about the shipping comment on the Mouser
site. Hovering the curser over the word "big" gives the shipping
restriction message.

Probably mentioned as "big" and disqualified from lower shipping rates
on basis of category, despite being a small item in its category.

- Don Klipstein (don@misty.com)

 

[Don Klipstein]

In article <7c5pbcF26aspfU1@mid.individual.net>, greg wrote:

What is this LED going to be used for?

If it's just a power indicator for a piece of mains
equipment, it may be easier and safer to use a
neon bulb and series resistor. You can get these as
a pre-made unit designed for exactly that application.

Should anyone else here want specifically an LED to go across the mains
for use as an indicator light, then (for 120VAC use):

Get a nice, decent green, blue-green or blue LED made with InGaN
chemistry.

(Those are those usual bright blue ones and bright non-yellowish green
ones. Green ones often have nominal wavelengths in the 520's or 530's of
nm, sometimes 510's or 505 for bluish green ones.)

Get a bridge rectifier and a 100K 1/2 watt resistor. Put the resistor
on the AC side of the bridge rectifier. The resistor should be
flameproof, UL recognized or the like unless all of this is enclosed in
something that can safely contain a resistor mishandling a severe line
voltage surge and/or a production flaw. The enclosure should be flame
retardant or otherwise suitable for this anyway.

If you use one of the above green LEDs, you have a fair chance of
getting more light than you would with an NE-2H lamp at 2 mA.

If you want bright at low current - how about using Nichia's NSPG520AS?
I have some of those on hand remaining from a project. With 120 VAC, a
100K resistor and a bridge rectifier, the LED gets average current
slightly over a milliamp. The NSPG-520AS, despite having a nominally 45
degree viewing angle (and in practice even wider), gets so bright at 1
milliamp in my experience as to mildly put spots in my eyes and to be
visible in direct sunlight. I find looking into that LED running on 1 mA
like looking at the spot produced when a 533 nm laser beam of 2-2.5
milliwatts is shone at a white surface.

- Don Klipstein (don@misty.com)

 

[David Eather]

default wrote:

On Sat, 18 Jul 2009 07:38:44 +1000, David Eather <eather@tpg.com.au
wrote:

Rich Grise wrote:
On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht
Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative
--
So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.
I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich

I bet the iron losses in the transformer were still around 10ma. i.e. no
improvement on driving the led direct from the mains

From the data sheet:
• Primary Exciting Current: 20mA (max.)

So it's even worse than a LED at 20ma (rather than the 10ma I suggested
above).

 

[Phil Allison]

"David Eather"
Rich Grise wrote:

BTW. This capacitors are relatively big and expensive. I'd not be
astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)


I bet the iron losses in the transformer were still around 10ma.

** Magnetising current is not the same as "iron loss"- dickhead.

Plus the current is largely 90 degrees out of phase with the voltage,
making the PF circa 0.2

i.e. no improvement on driving the led direct from the mains

** A capacitor has virtually no power loss, so hard to beat for efficiency.

But using a baby size transformer is ENORMOUSLY safer and still a cheap
component.



..... Phil

 

[Phil Allison]

"David Eather Total FUCKWIT "

From the data sheet:

• Primary Exciting Current: 20mA (max.)

So it's even worse than a LED at 20ma (rather than the 10ma I suggested
above).

** The maker gives a "worst case" figure and that means it is for the
no-load condition.

Only a total FUCKWIT would worry over less than one watt of heat loss in
order to prevent an electrocution.

IMBECILE !!!



...... Phil

 

[Don Klipstein]

In <I8WdnQdRvI37yf_XnZ2dnUVZ_sOdnZ2d@supernews.com>, David Eather wrote:

default wrote:
On 18 Jul 2009 07:38:44 +1000, David Eather <eather@tpg.com.au> wrote:

Rich Grise wrote:

<SNIP to here>

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

I bet the iron losses in the transformer were still around 10ma. i.e. no
improvement on driving the led direct from the mains

From the data sheet:
• Primary Exciting Current: 20mA (max.)

So it's even worse than a LED at 20ma (rather than the 10ma I suggested
above).

Please keep in mind that "exciting current" times primary voltage
overestimates by a significant margin the actual power consumption of an
unloaded transformer. The "exciting current" has significant lagging
component and likely has also some significant "harmonic component" (not
or not-necessarily "leading" nor "lagging" but still "non-real").

- Don Klipstein (don@misty.com)

 

[JIMMIE]

On Jul 16, 11:15 am, "Richardson" <mem...@newsguy.com> wrote:

"Tom Biasi" <tombi...@optonline.net> wrote in messagenews:4a5b7bc8$0$5923$607ed4bc@cv.net...

"Charlie+" <char...@xxx.net> wrote in message
news:f37m55p6cv4dc8jp6com8ie16oma481lnm@4ax.com...
On Mon, 13 Jul 2009 05:20:25 -0400, "Tom Biasi" <tombi...@optonline.net
wrote as underneath my scribble :

"Charlie+" <char...@xxx.net> wrote in message
news1ol55l50rrt1usq529janj5vht8ipp6dv@4ax.com...
Reading the thread on battery power with interest...
Is there a minimal and cheap junk box circuit that anyone can recommend
for
running a (blue 25 to 40mA) LED at near its maximum output but from
mains
power - 230V ac in my case?
Thanks

Problems with AC mains is the voltage varies a lot and spikes are common.
The drop needed is large compared to the LED voltage.
Take a look at this circuit:http://www.turbokeu.com/myprojects/acled.htm

Tom
Thanks Tom!

Just wanted you to see how someone else did it.
I like Don's idea about the wall wart.
Some cell phone chargers have smart circuitry, you just want the voltage.

Tom

http://www.turbokeu.com/myprojects/acled.htm

Hey guys, your circuits above are fucked up, don't be offended.  Most of you designers are technically incompetent, why?

For 230V:

1) Your resistor must be 50+watt to sustain the load (for a 32watt operation)

2) You very likely will blow your LEDs or your Zener.

For 110V (There is no such 110VAC, 120V yes, do your homework):

1) Your resistor must be 25+watt to sustain the load (for a 14.4watt operation)

2) You very likely will blow your LEDs or your Zener.

Next time before you call any one crackpot look at yourselves first.  The falling of your housing market, GM, FORD and Chrysler for example...  They are the result of your hypes....Don't you know?- Hide quoted text -

- Show quoted text -

I used a very similar circuit to power an LED circuit for a well
indicator because I got tired of changing the bulb. The bulbs didnt
last long with all the off and on cycles. Living in Florida at the
time with daily afternoon thundershowers the device was failing almost
monthly. I have also considered the problem may have been from voltage
transients from the motor. My solution was to run the LED from a small
6.3 volt transformer bridge diode and limiting resistor. Its been two
years now and no more failures. Such an indicator could be easily
fashioned from a small wall-wart power supply.



Jimmie

 

[Rich Grise]

On Sat, 18 Jul 2009 09:23:09 -0400, default wrote:

On Fri, 17 Jul 2009 18:08:14 GMT, Rich Grise <richgrise@example.net
On Thu, 16 Jul 2009 23:01:19 +0200, petrus bitbyter wrote:
"default" <default@defaulter.net> schreef in bericht

Where is the - on the bridge rectifier, and what does the = mean?
That = should be the negative

So once more:

Ever made a circuit like this:
___
+---|___|--+ +--+----+----+
| 330k| | | | |
| || | ___ | .-. | |
o---+----||----+-|___|---+ | | | | + |
|| 2k2/0.5W | | | | ### V
230V~ 220nF/250V~/X2 | .-----. | '-' --- -LED
+-| ~/ +|--+ |560 |10uF|
o--------------------------| /= |-----+----+----+
'-----'
created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

Which provides about 15mA to the LED. To double the current, replace the
capacitor by a 470nF part and the 2k2 resistor by a 1k/1W type. Be sure to
use an X2 rated type capacitor.

BTW. This capacitors are relatively big and expensive. I'd not be astonished
when a small transformer can compete.

I once bought a batch of ultra-cute little transformers from Mouser:
http://www.mouser.com/Search/Refine.aspx?N=254453&Keyword=41Pg006&FS=True

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

Good Luck!
Rich
see the description?

Heavy Duty Power Transformers XFMR FIL

Under that the word "big"

"do to size or weight, this product disqualifies the order for
discounted shipping rates outside . . . "

How big is that thumb of yours anyhow?

Well, the tranny is about a one-inch cube, with mounting tabs
at about 1.5".

I got a box of five of these and five of the next bigger size,
shipped by UPS ground; there didn't seem to be any problem, except
it took a couple of days for them to get here.

Where did you find that "description"?

Thanks,
Rich

 

[Rich Grise]

On Sun, 19 Jul 2009 06:08:17 +0000, Don Klipstein wrote:

In <I8WdnQdRvI37yf_XnZ2dnUVZ_sOdnZ2d@supernews.com>, David Eather wrote:
On 18 Jul 2009 07:38:44 +1000, David Eather <eather@tpg.com.au> wrote:
Rich Grise wrote:

SNIP to here

12VCT, 60 mA, $2.76 in onesies. about 1.5 cubic inches. (just a little
bigger than my thumb.)

I bet the iron losses in the transformer were still around 10ma. i.e. no
improvement on driving the led direct from the mains

From the data sheet:
• Primary Exciting Current: 20mA (max.)

So it's even worse than a LED at 20ma (rather than the 10ma I suggested
above).

Please keep in mind that "exciting current" times primary voltage
overestimates by a significant margin the actual power consumption of an
unloaded transformer. The "exciting current" has significant lagging
component and likely has also some significant "harmonic component" (not
or not-necessarily "leading" nor "lagging" but still "non-real").

Yeah - I've got one on one of my prototypes, and it runs cool as a

cucumber.

Cheers!
Rich

 

[Rich Grise]

On Sun, 19 Jul 2009 06:15:49 -0700, JIMMIE wrote:

transients from the motor. My solution was to run the LED from a small
6.3 volt transformer bridge diode and limiting resistor. Its been two
years now and no more failures. Such an indicator could be easily
fashioned from a small wall-wart power supply.

Wall warts can be surprisingly cheap - I've seen them for a dollar

at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)

Cheers!
Rich

 

[David Eather]

Rich Grise wrote:

On Sun, 19 Jul 2009 06:15:49 -0700, JIMMIE wrote:

transients from the motor. My solution was to run the LED from a small
6.3 volt transformer bridge diode and limiting resistor. Its been two
years now and no more failures. Such an indicator could be easily
fashioned from a small wall-wart power supply.

Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)

Cheers!
Rich

Umm, are those $1 wall warts energy authority approved. It doesn't make

much sense to avoid using an unapproved capacitor by replacing it with
an unapproved transformer.

 

[Phil Allison]

"David Eather = Utter FUCKWIT

Rich Grise wrote:

Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)



Umm, are those $1 wall warts energy authority approved.

** Ever seen a wall- wart on sale anywhere that was not ?

The way they are made is what makes them safe - not the presence of some
stupid logo.

It doesn't make much sense to avoid using an unapproved capacitor by
replacing it with an unapproved transformer.

** Not when an "un-approved" isolation transformer is totally safe to use
and an "approved' capacitor will easily kill you cos it provides no
isolation.

You fucking IMBECILE !!!!



...... Phil

 

[Rich Grise]

On Tue, 21 Jul 2009 09:01:28 +1000, Phil Allison wrote:

"David Eather = Utter FUCKWIT
Rich Grise wrote:

Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)

Umm, are those $1 wall warts energy authority approved.

** Ever seen a wall- wart on sale anywhere that was not ?

The way they are made is what makes them safe - not the presence of some
stupid logo.

It doesn't make much sense to avoid using an unapproved capacitor by
replacing it with an unapproved transformer.

** Not when an "un-approved" isolation transformer is totally safe to use
and an "approved' capacitor will easily kill you cos it provides no
isolation.

Uh, Phil, thanks for the factual info, but is it really necessary to
yell and scream and throw insults at everybody?

Please grow up or get some anger management therapy.

Thanks,
Rich

 

[David Eather]

Rich Grise wrote:

On Tue, 21 Jul 2009 09:01:28 +1000, Phil Allison wrote:
"David Eather = Utter FUCKWIT
Rich Grise wrote:
Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)

Umm, are those $1 wall warts energy authority approved.
** Ever seen a wall- wart on sale anywhere that was not ?

The way they are made is what makes them safe - not the presence of some
stupid logo.

It doesn't make much sense to avoid using an unapproved capacitor by
replacing it with an unapproved transformer.
** Not when an "un-approved" isolation transformer is totally safe to use
and an "approved' capacitor will easily kill you cos it provides no
isolation.

Uh, Phil, thanks for the factual info, but is it really necessary to
yell and scream and throw insults at everybody?

Please grow up or get some anger management therapy.

Thanks,
Rich

I don't mind at all - Phil is in my kill file, but he does raise an
issue that could/should be clarified.

I made the assumption that whoever was assembling this device was smart
enough not to splat themselves across the 230volts and also smart enough
to put the device in a case so that users won't be killed either. If
that assumption is incorrect then the person has NO business touching
the mains.

In what I can see of Phil's comment the only point of sticking I have is
that no-one has any idea at all if an "un-approved isolation
transformer is totally safe" and it is very unlikely to ever be the case.

 

[Phil Allison]

"Rich Grise"
Phil Allison wrote:

"David Eather = Utter FUCKWIT
Rich Grise wrote:

Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)

Umm, are those $1 wall warts energy authority approved.

** Ever seen a wall- wart on sale anywhere that was not ?

The way they are made is what makes them safe - not the presence of some
stupid logo.

It doesn't make much sense to avoid using an unapproved capacitor by
replacing it with an unapproved transformer.

** Not when an "un-approved" isolation transformer is totally safe to use
and an "approved' capacitor will easily kill you cos it provides no
isolation.

Uh, Phil, thanks for the factual info,

** Was not addressed to you at all.

but is it really necessary to
yell and scream and throw insults at everybody?

** Just one person was being addressed - one whom is well known to me.

You do not a clue what you are crapping on about.

Ever.


....... Phil

 

[Phil Allison]

"David Eather = Utter FUCKWIT

Rich Grise wrote:

Wall warts can be surprisingly cheap - I've seen them for a dollar
at thrift stores and liquidators, and I've even rescued a few from
dumpsters, i.e., free! ;-)



Umm, are those $1 wall warts energy authority approved.

** Ever seen a wall- wart on sale anywhere that was not ?

The way they are made is what makes them safe - not the presence of some
stupid logo.

It doesn't make much sense to avoid using an unapproved capacitor by
replacing it with an unapproved transformer.

** Not when an "un-approved" isolation transformer is totally safe to use
and an "approved' capacitor will easily kill you cos it provides no
isolation.

You fucking IMBECILE !!!!


...... Phil