Ah-HAH! Dick Cappels has been holding back Info!

[Watson A.Name \"Watt Sun]

Last Dec. over the holidays I was thinking that all these LED V boost
circuits that I see are three terminal black boxes. It would sure be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED would
just drop in place of the lamp. I toyed around mentally with the idea,
but I never came up with some circuit design ideas.

But now I found it. Dick Cappels did this one last month, and it's
essentially what I was thinking about. The only diff is that I had
intended for everything to be in the lamp itself, not in the second
battery. But either way, it's what makes retrofitting a regular 'torch'
or flashlight easy because it's a drop-in replacement.

http://www.elecdesign.com/Articles/ArticleID/7539/7539.html

If that doesn't work, google for LED V boost circuit, it's the third one
down. I like that: Flying Inductor! Like.. ^L^

 

[Myron Samila]

"Watson A.Name "Watt Sun - the Dark Remover"" <NOSPAM@dslextreme.com> wrote in message
news:c5mos4$6nhar$1@hades.csu.net...

Last Dec. over the holidays I was thinking that all these LED V boost
circuits that I see are three terminal black boxes. It would sure be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED would
just drop in place of the lamp. I toyed around mentally with the idea,
but I never came up with some circuit design ideas.

But now I found it. Dick Cappels did this one last month, and it's
essentially what I was thinking about. The only diff is that I had
intended for everything to be in the lamp itself, not in the second
battery. But either way, it's what makes retrofitting a regular 'torch'
or flashlight easy because it's a drop-in replacement.

http://www.elecdesign.com/Articles/ArticleID/7539/7539.html

If that doesn't work, google for LED V boost circuit, it's the third one
down. I like that: Flying Inductor! Like.. ^L^

I suppose MAG lites use those drop in lamps on the small units, right? (2 pin)

--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19

 

[the Wiz]

"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote:

"Watson A.Name "Watt Sun - the Dark Remover"" <NOSPAM@dslextreme.com> wrote in message
news:c5mos4$6nhar$1@hades.csu.net...
Last Dec. over the holidays I was thinking that all these LED V boost
circuits that I see are three terminal black boxes. It would sure be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED would
just drop in place of the lamp. I toyed around mentally with the idea,
but I never came up with some circuit design ideas.

But now I found it. Dick Cappels did this one last month, and it's
essentially what I was thinking about. The only diff is that I had
intended for everything to be in the lamp itself, not in the second
battery. But either way, it's what makes retrofitting a regular 'torch'
or flashlight easy because it's a drop-in replacement.

http://www.elecdesign.com/Articles/ArticleID/7539/7539.html

If that doesn't work, google for LED V boost circuit, it's the third one
down. I like that: Flying Inductor! Like.. ^L^


I suppose MAG lites use those drop in lamps on the small units, right? (2 pin)

Technology Associates www.techass.com has a white LED drop-in (MagmaLED to
replace the bi-pin bulb in the 2 AA MagLite. It's $16US (free shipping in the
US) and the electronics are sandwiched in a tiny round board that's about the
thickness of a paper match and the diameter of the MagLite barrel. It uses a
VERY bright bluish-white LED (they list it as half the light output of the
original bulb) and the MagLite retains its focus capability.

More info on the MagmaLED here (including a picture of the circuit board and
surface mount components):
http://www.techass.com/el/versalux/magmaled/magmaled.php?techass=ac76afe4dadb12ffb140cbb0459ff8ac

My only connection with the company is as a satisfied customer - my MagLite now
can run continuously for hours.

More about me: http://www.jecarter.com/
VB3/VB6/C/PowerBasic source code: http://www.jecarter.com/programs.html
Freeware for the Palm with NS Basic source code: http://nsb.jecarter.com
Drivers for Pablo graphics tablet and JamCam cameras: http://home.earthlink.net/~mwbt/
johnecarter at@at mindspring dot.dot com. Fix the obvious to reply by email.

 

[Watson A.Name - \"Watt Su]

"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote in message
news:1vUfc.33168$vF3.1944298@news20.bellglobal.com...

"Watson A.Name "Watt Sun - the Dark Remover"" <NOSPAM@dslextreme.com
wrote in message
news:c5mos4$6nhar$1@hades.csu.net...
Last Dec. over the holidays I was thinking that all these LED V
boost
circuits that I see are three terminal black boxes. It would sure
be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED
would
just drop in place of the lamp. I toyed around mentally with the
idea,
but I never came up with some circuit design ideas.

But now I found it. Dick Cappels did this one last month, and it's
essentially what I was thinking about. The only diff is that I had
intended for everything to be in the lamp itself, not in the second
battery. But either way, it's what makes retrofitting a regular
'torch'
or flashlight easy because it's a drop-in replacement.

http://www.elecdesign.com/Articles/ArticleID/7539/7539.html

If that doesn't work, google for LED V boost circuit, it's the third
one
down. I like that: Flying Inductor! Like.. ^L^


I suppose MAG lites use those drop in lamps on the small units, right?
(2 pin)

Actually I made a misteak. There are drop-in replacements already
available for the Mini-Mag, one of them being the one I have, the Opalec
New-Beam. There's another that uses a single LED, and doesn't need to
have the reflector removed.

What I should have said is that the LEDs would drop in where the lamp
is, and the V boost circuit would go in between the negative terminal of
the battery and the spring of the battery holder. No changes have to be
made to the light itself, just drop in the parts and go. And if in the
future you want to go back to the original bulb, no problem, just put
them back in.

--
Myron Samila
Toronto, ON Canada
Samila Racing
http://204.101.251.229/myronx19

 

[Watson A.Name - \"Watt Su]

"the Wiz" <look@message.body> wrote in message
news:uis0805t2mr3qve59p6v87lvkhiej90bsa@4ax.com...

"Myron Samila" <myronx19@no.spam.sympatico.ca> wrote:

"Watson A.Name "Watt Sun - the Dark Remover"" <NOSPAM@dslextreme.com
wrote in message
news:c5mos4$6nhar$1@hades.csu.net...
Last Dec. over the holidays I was thinking that all these LED V
boost
circuits that I see are three terminal black boxes. It would sure
be a
lot easier to put one in a flashlight if it was a two terminal box.
That way, no common or ground would have to be used, and the LED
would
just drop in place of the lamp. I toyed around mentally with the
idea,
but I never came up with some circuit design ideas.

But now I found it. Dick Cappels did this one last month, and it's
essentially what I was thinking about. The only diff is that I had
intended for everything to be in the lamp itself, not in the second
battery. But either way, it's what makes retrofitting a regular
'torch'
or flashlight easy because it's a drop-in replacement.

http://www.elecdesign.com/Articles/ArticleID/7539/7539.html

If that doesn't work, google for LED V boost circuit, it's the
third one
down. I like that: Flying Inductor! Like.. ^L^

I suppose MAG lites use those drop in lamps on the small units,
right? (2 pin)

Technology Associates www.techass.com has a white LED drop-in
(MagmaLED to

Yeah, that's the one I was trying to think of in my other followup. But
I don't believe this is anywhere near as bright as an Opalec NewBeam.
Opalec says their NewBeam puts out 41,000 mCd, see URL
http://www.opalec.com/support.html for more info. I wish this company
would give a beam intensity in their specs. They say,
"TA Peak Light Output Rating : 15" but what's that mean? I don't know
how to compare that with 1000's of mCds or Cds.

For kicks, I ordered a couple. I'll try them out with my Opalecs,
side-by-side. My guess is the Opalec will be brighter.

[snip]

My only connection with the company is as a satisfied customer - my
MagLite now
can run continuously for hours.

johnecarter at@at mindspring dot.dot com. Fix the obvious to reply by
email.