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What? Mine are made from a thin metal film. Keith.

wrote: Be aware that the power will probably be shorted out if you plug in a stereo 3.5mm type jack while powered up - and power may end up on your signal pin. Keith.

Post a picture - see if anyone recognises it. I have used some Philips 5" ones and may stil have some data. Keith.

Are U working / studying for IETE Srinivas?? I am frm Hyd and U? Basically resistors are made of salt and actually it is supposed to give same current across but there is power loss in trasmisstion

Hi all, I'm looking at a data logging unit and was hoping I could use a stereo connector as the connector for the unit. I need 5V, ground and signal. My second choice is a 5 pin PS2 mouse connector.

I have here a Bang and olufsen beomaster 2400t. what i don't have is 300 dollars to get the damn thing fixed. so far as i can tell the board is being forcee to standby becaseu of a short or a bad

with out a datasheet, its just a paperweight. google is a great way to trace this kind of stuff down. find a datasheet and that will tell you a lot. You may find others that have the same device and

wrote: PCB cost. links software lay I didn't find the low-low cost boards. Olimex does boards for cheap, but shipping is $8.00 and up to 15 days. OK, $29.00 for a board is pretty darn low ! Dave

links software Software of choice ? I like Express PCB for a lot of reasons, find it klunky for other reasons. BUT, as far as I have seen, it is proprietary to their manufacturing the boards. For

I don't think it's an LCD from a laptop because it's only 5". Also, it must be a surplus or something because it didn't come with datasheets, and I had a really hard time finding it online.

thanks scott. It would be ok to get rid of the opamp. I found one line from TI (TSL250/251/252) with integrated amps that looks promising but TI says its obsolete with no recommended replacement. sigh

<upand_at_them@y...> wrote: Also, $62.00 for 3 boards or $105 for two boards when one only wants one board is an expensive proposistion. The guys like myself who charge about $25.00 for single board,

wrote: agree featured ever with

<kensmith52@y...> wrote:

Thanks for the review. I looked at the web site and it looks like the prices are very good for what's offered. I may get some of the SMT kits.

It sounds like you have a good understanding of where to go and what to do. I'd agree that a photodiode is perhaps the best option, given that you'll be using an op-amp anyway. I suggest wrapping the

I'm Allison, I'm an electronics technician in central Illinois. I've decided to take the Journeyman ET certification from Electronics Technician Association this summer, and am looking for study

And it looks like this place is even cheaper: http://www.pcbfabexpress.com/ Mike software charge inch the

express See, now, if you'd only go check out the Commercial Prototypers links in Homebrew PCBs list, you'd see that you can get one double sided plated through holes for $26 in single quantities,

Correct, I'm just a hobbyist doing this for my own projects and experiments. Thanks to everyone for all the great info. Mike