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[hippo]

2 diodes will drop it and so will a LED after the forward voltage of 1.7 for red. Best bet is the strip board version and usb power. Radio shack only has voltage regulators down to 5v last I checked.

[animex2]

I dont get what the things i circled are, the orange, grey and orange thing...

[networkBoy]

QUOTE (hippo @ Feb 12 2004, 12:37 PM)

2 diodes will drop it and so will a LED after the forward voltage of 1.7 for red. Best bet is the strip board version and usb power. Radio shack only has voltage regulators down to 5v last I checked.

They do have LM317T's which are adjustable down to 1.2 volts.

QUOTE

I dont get what the things i circled are, the orange, grey and orange thing...

the purple and orange thing are capacitors to smooth any ripple present and to provide stability in the regulator (grey) this is common (and good) design practice.

[animex2]

so i need to get 2x volt capasitators (different number for x im assuming) and a LM317T? what would the X be for each one? (orange and purple)

[networkBoy]

generally you would use a 1µF (micro-farad) 16V cap where the purple one was and a .1µF monolithic cap for the orange one.  You should be able to get these darn near anywhere.  If not you have my e-mail, cover postage and paypal fees and I'll hook you up (only prob there is that the mail is so much slower than running out to radio shack)
-nB

[animex2]

now, if anyone can make anything from that Diagram i modifyed, does that look right?

assuming all the lines are insulated wire and such...

also, ignore the part at the bottem that says socket....

[networkBoy]

anyway I'll make up a schematic over the holiday weekend and post it both here and on my site.
-nB

[animex2]

QUOTE (animex2 @ Feb 13 2004, 04:33 PM)

now, if anyone can make anything from that Diagram i modifyed, does that look right? assuming all the lines are insulated wire and such... also, ignore the part at the bottem that says socket....

ya, i updated the picture if its easier to understand...

[networkBoy]

I know what parts these are but I still cant make out your connextions.... Also which CAP is which?  Schematic up by tonight (maybe late)
-nB

[animex2]

I just ran out to Radio Shack... They didnt have Exactly what you said.... But im hoping this will do...

I got the LM317T (lucky me, the last one they had)
a 0.1µF Ceramic Capacitor (50WVDC Max)
and 1.0µF Tantalim Capacitor (35WVDC Max)

will those work?

and on the schematic i made.... The one on the top is the 0.1.µF, the middle is the LM317T, and the bottem is 1µF

[greengiant]

Alright, those are 2 capacitors and 1 voltage regulator.

I dont know WHY ppl have been suggesting the LM317T, thats a variable voltage regulator, where you need extra resistors to select the output voltage. WASTE.

You just need 1 3.3v Regulator, a common part number is 78l033


The parts you asked about..
1 - 0.1uf Ceramic Capacitor (Stabilizing output)
1 - 10uf Polarized Radial Capacitor (Stabalizing input)
1 - ZR78L033

Good Luck.

[animex2]

so using the LM317R, 0.1uf Ceramic cap, and 1.0uf Tantalum Cap will not work?

If not, will it work with the right kind of resistors?

If so, what ohm resistors?

btw

i searched google for ZR78L033 and 78l033 but didnt find anything or any place i could buy them....

[networkBoy]

your missing 2 components ( a pairt of resistors) if I forgot to tell you that, then my bad.  I'm feeling quite under the weather at the moment so the schematic I promised will be up tommorow (hopefully).
-nB

[animex2]

by any chance do you know what ohm resistors?

::EDIT::

BTW NB....

Im assuming 1uf (35WVCD) Tantalum Capacitor and 0.1uf (50WVDC)Ceramic Capacitor are acceptible to use?

[networkBoy]

caps are fine. and here is the schematic:


The caps are as you already have (100nF is .1 µF) the resistors are:
R1 = 240 OHMS
R2 = 400 OHMS

sorry about the lag in answering.
-nB