What is the circuit to use a LM318 for an N64?

ssnik992 · Post by **ssnik992** » Mon Jul 31, 2006 5:28 pm

I am currently making an N64 portable-ish thing, and am wondering how to wire up a battery. I know you need a battery around 7-9 volts, and a voltage regulator (LM318) for the 3.3v line, but how do you wire it?

Post by **Skyone** » Mon Jul 31, 2006 5:52 pm

LM318 is a OP-AMP, I think. LM317 is what you're looking for.

http://skytroniks.com/317.htm

For the R1 box, punch in 390 (ohms) and you'll see you get 3.28v output. Throw a 390 ohm resistor in that circuit for R1 and you'll get 3.28v.

Tips:
-The capacitors are recommended but not needed
-Use a large heatsink, the LM317 will dissapate a TON of heat.

joevennix · Post by **joevennix** » Mon Jul 31, 2006 7:58 pm

Use a TI dcdc unless you absolutely cannot get your hands on one. LM317's are less efficient.

LHoT · Post by **LHoT** » Thu Aug 10, 2006 8:21 pm

Sorry for the bump, but for resistor one, I can't find 240, or a 390, can I just string some resistors together so it adds up to 240, and 390?

EDIT::: Can the PSone screen take only 6.98 volts? I found a configuration of resistors I have that gives that. Also, a 220(r2) and 360(r1) will give 3.3

Post by **Skyone** » Thu Aug 10, 2006 9:02 pm

Uh, yes you can, but there's the same exact topic below this topic. Why did you bump this one?

ShockSlayer · Post by **ShockSlayer** » Fri Aug 11, 2006 11:05 am

LHoT wrote:Sorry for the bump, but for resistor one, I can't find 240, or a 390, can I just string some resistors together so it adds up to 240, and 390?

I can send you some resistors of 390 and 240. I also have a LM317t, and the heatsink for it. I can wire it all up, and get the ground, input, and output wires correct, as well if I find the resistors, I can wire those. I'll do It for free.

SS