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Old 09-13-2011, 07:20 AM #1
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Default O-Like 350 green modification

Ok i want to modify my o-like laser so i can turn the power down , the little potmeter inside is what i need to make external with a on-off pot meter.
Does anyone have eany suggestions ?
Did anyone modified his laser like my idea?
If i turn the pot down the laser mode hops in TEM02 but that doesn't really matter
Or maybe... someone did modded his O-like

I want to take the risk to do this but for now i wait for any suggestions.


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Old 09-13-2011, 11:14 AM #2
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Default Re: O-Like 350 green modification

remove the pot and resistor (s) and add your own? It might take long but the results will be pleasing
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Old 09-13-2011, 11:22 AM #3
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Default Re: O-Like 350 green modification

They are tiny as hell shitty job
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Old 09-13-2011, 12:06 PM #4
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Default Re: O-Like 350 green modification

If you use thru-hole resistors and a pot like this one for my bench PSU:

(blue one in top middle of pic)

then you shouldn't have too much of a problem
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Old 09-14-2011, 01:23 AM #5
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Default Re: O-Like 350 green modification

You basically want to replace the internal pot by some exteral power dial? Electronically that seems very simple, although i'm not sure how you are planning on fitting it to the host.
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Old 09-14-2011, 02:40 AM #6
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Default Re: O-Like 350 green modification

i want to replace the click tail button for a turn on off pot
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Old 09-15-2011, 12:03 AM #7
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Default Re: O-Like 350 green modification

I don't think there are such things as turn on/off pot... what you will end up doing is always having it on slightly (ever so slightly) but it's just really dim. You can't STOP current flow with a potentiometer, just resist it.
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Old 09-15-2011, 05:58 AM #8
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Default Re: O-Like 350 green modification

Yes i have 1 that turns on before making contact with the actual ohm slide
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200mw 650nm < gave it away
1mw 632.8 nm HeNe
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COHERENT INNOVA 90-5 GOD's power
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Old 09-15-2011, 06:17 AM #9
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Default Re: O-Like 350 green modification

Oh, that's neat :O Where did you get that?
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Old 09-15-2011, 07:54 AM #10
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Default Re: O-Like 350 green modification

local electronics store , the owner even sold me a spectra physics HeNe tube + power supply for 15 euro's ( 21 USD ) cause he didn't know what it was laughing my ass off
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cute 5mw 532nm < my cat ate it
200mw 650nm < gave it away
1mw 632.8 nm HeNe
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COHERENT INNOVA 90-5 GOD's power
MELLES GRIOT HeNe 75 mW max , 632.8 nm ( 38 mW )
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Old 09-15-2011, 07:56 AM #11
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Default Re: O-Like 350 green modification

why a turn on-off potentiomer?

You could still be able to mount a clicky switch, which would be IMO be easier to use due to the fact that you dont have to turn the pot every single time you want the laser to turn on. You could also leave the pot set to a certain current and turn it on at that point every time.
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Old 09-15-2011, 08:00 AM #12
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Default Re: O-Like 350 green modification

yes but i am not going to drill a hole in the host to mount a pot meter + there's no space for that so i only can use the tail cap for a pot meter ,really there's no space, even a thin wire can't even pass next to the batt it's all a super tight package
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Working lasers are.
400mw 532nm < dead
cute 5mw 532nm < my cat ate it
200mw 650nm < gave it away
1mw 632.8 nm HeNe
1.2-1.4watt 445nm

COHERENT INNOVA 90-5 GOD's power
MELLES GRIOT HeNe 75 mW max , 632.8 nm ( 38 mW )

Last edited by weeba2kv; 09-15-2011 at 08:02 AM.
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