Search results

$20 donation here.

Re: Open: Osram PL TB450B 1.6W (Substitute for the M140) Curiosity was killing me. I was able to get into the university lab today and calibrate my meter to a coherent field master that was just certified a month ago. New measurements put the diode, both of mine at 2.36W at 1.8A. Much...

Re: Open: Osram PL TB450B 1.6W (Substitute for the M140) Any other power reports on these. Curious on if my meter might need some calibration. Constant for me 1.8a is 2w.

Re: Open: Osram PL TB450B 1.6W (Substitute for the M140) Sorry to back out of a diode, but I no longer need another. The good news is the diode that tested low power. Is working fine measures the same as the other one making 2w at 1.8a. Turns out it was in a bad host and not seating...

That be great if you don't mind. I am alright with surface mount, but my eyes are starting to get old. Thanks

Thanks guys. Appreciate it. ARG quick question. It appears there are plenty of I/O left available. Is that correct? Thinking about trying to code the firmware to where the scaling can be changed depending on 4 switch settings. As the meter I use voltage out varies with scale. 10W reading...

Can I just modify the LPM version "reading.ino" to match that of the simples? Just removing the "s" that causes the error and adding a ";" after the "2)" where the next error occurs, this then matches that of the simple firmware. This allows it to pass the verify, am I correct that the...

Thanks to both ARG and Trevor for this add on. I have found with the meter I wish to add this I need to multiply the voltage value by 5. Currently 6mv=30mw, 100mv=500mw. I also get an error when checking the code downloaded, I was curious if my attempts at modifying would work, but I...

Re: Open: Osram PL TB450B 1.6W (Substitute for the M140) That batwing is usually caused from the diode not being centered on the lens? Or atleast the fact that it isn't equal on both side. When building modules I use centering mounts that I can adjust the position of the diode. You can then...

Thanks. The resistive network is switched and tied directly to the output pin of the 741, so no matter what I would do I am out of luck unless I'd actually cut the trace, buffer the signal twice feeding one back to the meter and the other to the logger. Easier to just deal with only logging on...

Hello everyone, I am looking at adding logging to this meter. meierlight All logging would be done on the 10w scale. This meter uses a head that is 2 wire, all amplification etc is done in the meter with op07 and 741 opamp, the voltage shifts according to scale resistor network, but for logging...

Wondering if anyone has info on this product. I am most curious how the 2 wire head reads. GK East Optoelectronic Technologies meierlight Trying to figure out if data logging will be able to be added as well to this meter or if I'll just use it with my Ophir head. It appears this maybe...

Re: Open: Osram PL TB450B 1.6W (Not M140) Did you run any secondary correction lens or just the collmenating lens?

Re: Open: Osram PL TB450B 1.6W (Not M140) I'm now questioning how much hurt my LPM head has on it. Perhaps it's time to buy one of the $100 meters to see how off my meter maybe. I know Have smelled the burn when hitting it with nearly 10w, but still assumed it was only off a few mw's.

Also would consider trades for a 300mw 532, set of 30k scanners. Thanks for looking all.

Have a spectra physics 107 for sale with power supply. Doing 28mw on two different meters. Includes brick type power supply. I did rock the coarse mirrors to get it to 28mw. I think spec for these was 35mw often doing more. I believe it needs a good tear down and Brewster mirror cleaning as the...

Re: Open: Osram PL TB450B 1.6W (Not M140) And go ahead and put me down for one in the next buy.

Re: Open: Osram PL TB450B 1.6W (Not M140) I drive it with a Flexmod, always been a module guy, so never really look at voltage. I will check the Vdrop across when I fire it up next. Perhaps tomorrow.

Re: Open: Osram PL TB450B 1.6W (Not M140) These numbers were valid tec or not, I only had a small tec set at 68 degrees, and just turned it on at the end to see if it would maintain the 1.9w it was solid there for 45 minutes. I plan on doing test with it extremely chilled later on.

Re: Open: Osram PL TB450B 1.6W (Not M140) And the picture. Any idea why this forum won't resize my pictures. I don't have issues on other forums but here it hates my pics.