WOW, so this is a BRIGHT dynamo light

Handlobraesing · Nov 20, 2006

Made in Soviet Russia. I bought one from Good Will. It does not have an energy reserve and the energy is provided by repeatedly squeezing the trigger. The output is AC and power and frequency is a function of how fast you pull the trigger, but it can direct drive an Luxeon LED just fine and a cyan LED is blinding bright powered on this thing.

Christoph · Nov 20, 2006

How did you hook it up any pics?I have one of those I bought a few years ago.

C

Erasmus · Nov 20, 2006

Handlobraesing said:
Made in Soviet Russia.

Must be an old flashlight then, Soviet Russia doesn't exist anymore since 1991.

Handlobraesing · Nov 20, 2006

Christoph said:
How did you hook it up any pics?I have one of those I bought a few years ago.

C

Since this was only a test phase, I just crammed it into the bulb socket, so one end touches the bottom, the other end the side. Polarity does not matter since the output is AC. You could use a bridge, but since the output has to go through two additional diodes, it will reduce output at the reward of less strobe effect.

macforsale · Nov 20, 2006

Chucula · Nov 20, 2006

cool i have one of those! I never used it seriously but it was a neat toy. Show us some pics of the led

Spordin · Nov 20, 2006

I have 2 of them and with the incan it's just barely better than not having it. I would like to hear more as well.

Handlobraesing · Nov 23, 2006

I simply crammed the emitter in there for the prototype. It should probably be attached to something for heatsink. Instead of using diodes, I would connect two Luxeons back to back, so they light up alternatingly at ~200Hz. You could use a small bridge to make one luxeon light up on both cycles, but the fwd drop on them is around 1.2v, so (1.2v/total voltage) = quite a high percentage lost in rectifier.

If you use two emitters back to back, the perceived brightness should double.

WOW, so this is a BRIGHT dynamo light

Handlobraesing

Banned

Christoph

Flashlight Enthusiast

Erasmus

Flashlight Enthusiast

Handlobraesing

Banned

macforsale

Enlightened

Chucula

Newly Enlightened

Spordin

Enlightened

Handlobraesing

Banned

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