Armed with this piece of the puzzle at

http://flashlightreviews.home.att.net/mods/prbulbs.html


What LED and resister will give great light time for the battery juice?

Thanks


"Jennie" wrote in message
...
http://flashlightreviews.home.att.net/mods/prbulbs.html



"Jennie" wrote in message
news
Reply from eton tech support about a led replacement for fr200...


If your unit draws excess current, it has a bulb, not a LED. The bulb can
be replaced with a LED. Most competent repair shops can do this. If you
can't find one in your area, the shops below can do it.

NON-WARRANTY SERVICE FOR ETON/GRUNDIG PRODUCTS:
From time to time we are asked to provide names of companies that perform
out of warranty work on various Grundig and Eton branded products.
Although we cannot recommend one repair facility over another, we
understand that the companies below specialize in repair and restoration
of out-of-warranty and older products. We cannot comment on their
customary fees. We recommend that you get in touch with them and
determine for yourself whether the fees they charge are reasonable for
the work you wish to have performed. We are providing this information
as an accommodation to our customers. Please note that these are
private, independent companies, and not part of our company, Eton
Corporation, and that we bear no responsibility for work performed by
these companies or for warranties, guarantees or promises made by them
with respect to repairs, repair costs, or repair time frames. Below is
their contact information.
* ACT Electronics in Hawaiian Gardens, near Long Beach, CA; Mr. Adrian
Ilie, owner; 562-809-0263 or 1-800-824-7094; .
* Bavarian Radio Works in Massachusetts; contact Mr. Ross Hochstrasser,
owner, at 781-447-4299 or .
* EBM Electronics, 80 Acorn Place, Unit 50, Mississauga, Ontario L4Z 4E1;
905-755-9527; . The owner is Mr. Edvard Mahnic.
Will also do repairs from U.S. customers.


Please include this email in any subsequent response.

Walter Hess, Technical Support Manager
Eton Corporation, 1015 Corporation Way, Palo Alto, CA 94303; phones
active 8:30-4 Pacific Time; 1-800-872-2228 (from the U.S.);
1-800-637-1648 (from Canada); 650-903-3866 (from any location); FAX
650-903-3867; ; http://www.etoncorp.com/


-----Original Message-----
From: Bill N. ]
Sent: Thursday, September 23, 2004 4:57 PM
To: Scott Inman
Subject: led

Fr200 do they make an led to keep the light from using so much energy?
Thanks




"Telamon" wrote in message
...
In article ,
"Jennie" wrote:

Here is some more replacement bulbs to LED...


http://www.ledcorp.com/catalog.html



"Telamon" wrote in message
..
.
In article ,
(Mark Zenier) wrote:

In article ,
Jennie wrote:
what is the bulb number in the fr200? If it is the 1157, a common
bulb,
the
bulb at aerostich has a LED replacement...


http://www.aerostich.com/riderwearhouse.store


search for 2542 for led replacements for 1157 bulbs....15 Ma vs.
590 Ma
for
regular bulbs


HUH? An 1157 is a 12 volt automotive turn signal lamp. It's an S8
envelope and is over an inch across and runs 7 watts or so.

The lamp in a FR200 is a 5 mm long grain of wheat incandescent with
wire leads. There is some sort of circuit to drive it, because the
lamp
is running on about 2.5 volts, with about 2 volts difference between
the the + side of the AA batteries. (The lamp runs on either/both
the
AA cells and the rechargeable NiMH pack).

BTW, there's a spare lamp in there behind the pop off lamp holder,
in a
little recess in the radio case.

But that 7 watts will really light things up.

Someone was talking about using LED's for incandescent bulbs. If you
want to do this the forward drop on them is typically around 1.3 to
1.8
volts. You just need a series resistor to limit the current usually
around 12 to 18 mA. Digi-key will list them with there typical
voltage
and current ratings so you can find one for your situation.


I'll make the brash assumption the that the lower voltage units put out
less light and require less current to operate.

The lumens or light output is not part of the specifications so you will
have to guess.

One other thing to keep in mind about any LED is that they decrease
their output over their lifetime.

They look pretty pricey.

http://www.ledcorp.com/catalog.html

--
Telamon
Ventura, California