testing of LVR on M6-R - scope shots ...

[wquiles]

I am almost done with my own M6-R pack, so I decided to do some bench testing with a few incandecent lights:






Here is an H3, 6V, 55W bulb, clearly showing the soft-start feature on the LVR's, first at 10mS/div and then at 40mS/div. The scope's built-in RMS voltage reading for a longer sweep (100mS) was 6.36Volts.






I know these next pictures are much harder to see (underexposed!), but this is for the MN21, first at 4mS/div, 10mS/div, and then at 20mS/div. The scope's built-in RMS voltage reading for a longer sweep (100mS) was 6.02Volts.








I then tested the MN20 (the only MN20 bulb that I have with me at the moment!): first at 10mS/div and then at 100mS/div. The scope's built-in RMS voltage reading for a longer sweep (100mS) was 6.25Volts (which to me it makes sense since the loaded voltage for the pack when using the MN20 is higher given the 2.5A draw vs. the MN21's 4.8A draw).





Then came the N2, first at 10mS/div and then at 100mS/div. The scope's built-in RMS voltage reading for a longer sweep (100mS) was 6.35Volts, the peak voltage of the pack, instead of 11.3Volts as with the MN20, was higher at 11.5Volts.





and finally, the MN15. The scope's built-in RMS voltage reading for a longer sweep (100mS) was 6.33Volts, the peak voltage of the pack, instead of 11.3Volts as with the MN20, was higher at 11.5Volts.





Now that I know that these lower current bulbs will not blow up in the KT4, I can try them one by one . That is all for now, except that I have an MN15 running in my M6 right now, which should have a VERY long runtime

Will

[HarryN]

Nice scope shots Will. That has got to be painfully bright working with those bulbs. I have a hard time seeing after working with Lux Vs.

Now, if I read your post a few more times, I will certainly have some questions.

[albino]

That is all for now, except that I have an MN15 running in my M6 right now, which should have a VERY long runtime

is it easy to change the mn20 to the mn15?
-dos it have 125lumens then?
-would runntime be 4 hours ore more?

can i also use mn16 ?
- would that have 225 lumens?
- could i gain 2 hours runtime?

is it so simple? or would i have problems with to mutch energy, or lifetime, or what ever i do not know?

[wquiles]

Nice scope shots Will. That has got to be painfully bright working with those bulbs. I have a hard time seeing after working with Lux Vs.

Now, if I read your post a few more times, I will certainly have some questions.

Thanks Harry . Yes, they we bright, but to the side of me, and of course I try not looking much in that general direction

is it easy to change the mn20 to the mn15?
-dos it have 125lumens then?
-would runntime be 4 hours ore more?

can i also use mn16 ?
- would that have 225 lumens?
- could i gain 2 hours runtime?

is it so simple? or would i have problems with to mutch energy, or lifetime, or what ever i do not know?

WARNING: If you have an M6, and if you are using the stock battery holder and cells, DO NOT USE ANYTHING BUT THE MN21 and MN20

WARNING #2: The recommended bulbs with this pack are the MN16 for the LOLA and the MN21 for the HOLA. Anything outside these recommendations could be dangerous to the pack, flashlight, or you

With this regulated pack, I can run the other bulbs I tested here, but as js has pointed in the past, they are not as bright as they should since they are underdriven. If there were a way to change the LVR to run at a higher CD-equivalent voltage, then these bulbs might be driven at their "rated" lumens, and would therefore also run for a longer time.

Will

[wptski]

Nice scope but what you need is PC software like this:WaveForm Manager Pro

[TheSteve]

Nice scope shots!
I always wanted to scope my M6 pack but never got around to it. When I do scope something and want to save pictures I use a little program called tek.exe(not written by Tektronix) It grabs screen shots from my THS720 very nicely and saves them to a .bmp file.

[wptski]

Nice scope shots!
I always wanted to scope my M6 pack but never got around to it. When I do scope something and want to save a pictures I use a little program called tek.exe(not written by Tektronix) It grabs screens shots from my THS720 very nicely and saves them to a .bmp file.

The author of the above software that I linked to did work for Tektronix at one time. Him plus others designed some aotomotive testing products for OTC/SPX too.