LDRs for Phaseur Fleur

[mlabbee]

Does anyone know a currently available source for suitabe LDRs for the Phaseur Fleur?  Mouser no longer stocks them, Small Bear stocks some with different Mouseer stock nos which appear to have different ranges, I can't find anything at Jameco or Digikey searching for CdS or LDR.  Any suggestions?  Is there any way to make Silonex NS-32s work in this circuit?

BTW - I have searched the forum.  The only suggestions I could find (Jameco, Digikey and Alrtonics ) all came up with zip.

[The Tone God]

Digikey does sell LDRs now. Do a search for "photocell".

Andrew

[mlabbee]

Found them - none there seem to have anything close to a 5k-500k range . . .

[mlabbee]

Aha - found some on Jameco that look good - searching for "photocell" did it.

http://jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=120577

[moisho]

Hi guys... my second post!!!
Once solved my problems and finished my Neutron, and my AD, I'm going to start with a more complex one... you can imagine. :wink:

OK. I've found a source to get the LDR's:

http://www.banzaieffects.com/europe/parts/photocells.htm

but it seems the values don't exactly match.

There is a LDR like this:

On 16k-33k;   Off  500k

What do you think?. Can I use them or will I have to add a 20k resistor?

[moisho]

OK... let's say LDR's are OK... I will put the 20k resistor... but I have another question: What about the rect. LEDs... must they be rectangular? Could I use any replacement???

[80k]

OK... let's say LDR's are OK... I will put the 20k resistor... but I have another question: What about the rect. LEDs... must they be rectangular? Could I use any replacement???

they don't have to be rectangular, but it makes it a lot easier to put the cell flat up against the rectangular LED, which makes it easier to tape up, and the closer they are together, the better the light will transfer.  Really, anything with a similar voltage drop should work.  If you end up using a high-brightness LED, you will have to tweak the resistors a bit.

[80k]

see how nicely the cells go flat up against both sides of the rectangular LED?

[RCZ53]

Hey 80k
What circuit is that? Did you etch the PCB's? looks very cool ....how does it sound? regards, Roger

[moisho]

OK... let's say LDR's are OK... I will put the 20k resistor... but I have another question: What about the rect. LEDs... must they be rectangular? Could I use any replacement???

they don't have to be rectangular, but it makes it a lot easier to put the cell flat up against the rectangular LED, which makes it easier to tape up, and the closer they are together, the better the light will transfer.  Really, anything with a similar voltage drop should work.  If you end up using a high-brightness LED, you will have to tweak the resistors a bit.

Hey 80k!!! Thanks!! (and sorry 'cause the delay) In fact I didn't know how the hell do the mounting of the leds and LDR's... I got rectangular leds and I have all the LDR's...
The pictures are perfect!!! Thanks again. This week I'm going to start with this project