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  1. C

    Solar Camping Light

    Wow Illum - As always your replies are great. I thought about going down the Buckpuck route (especially as I have a spare 1A unit that i'm able to dim down quite low.) Doing some tests I have anywhere between 8-9 hours of sun...on average. I'm going to be using for tests this setup. ONE...
  2. C

    Solar Camping Light

    Well It looks like the 3.6V battery pack is going to be the winner. I'm looking to see if I can acquire a second pack and run them in series to the two leds. Current stays the same so the C10 for the two will be around 450Ma...which will put me right around a 3OHM resistor. Although I'm still...
  3. C

    Solar Camping Light

    Well I looked into the 9v...Defently not suited for this project. With only 200MaH of juice, I can't expect full power for very long... Battery options anyone?
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    Solar Camping Light

    Some ideas I have been trying to sort through. I'm looking to construct a small solar light for when we go camping. As much spread as possible. I have selected a few components already - more so because it's what I have on hand. -12v 2W solar panel (used to trickle charge a car battery- 2...
  5. C

    Shift Light - How To?

    Well that didn't work so I think I'll try the speed switch circuit the LM2917 came with and replace the tacho with a led/ you guys see any problems with that?
  6. C

    Shift Light - How To?

    well I tryed the circuit and I think something is wrong. Theres a short between the diode and ground. I dont connect the diode to ground and everything allright.. the circuit doesnt work, but an led in the device location does light up if the pot is turned all the way down.
  7. C

    Shift Light - How To?

    Well it looks like i'm going to try this circuit out. It seems the most basic for me to understand and all the parts im able to obtain locally (and for under 10$:)) http://forum.teamfc3s.org/attachment.php?attachmentid=14577&d=1066659821 Here is my version Less the output from pin 5 to my...
  8. C

    Shift Light - How To?

    anyone?
  9. C

    Shift Light - How To?

    So for the PIC List Circuit: Pin 1 = The input from the (-)negative of the coil Pin 5 = 12V Switch power. Pin 4 = Power to the led? (connected to (+) of LED then to ground?) Pin 8 = Ground Pin 3/2/7/6 = Resistor/Cap then to Ground My question is in regards to where (and what size watt) of a...
  10. C

    Shift Light - How To?

    I'll spend the extra cash. It will be a fun project for me aswell. So I would have to get the hz at say 3000rmp and at 9000rpm and then which resistor would I use a pot for to control the varible rpm
  11. C

    Shift Light - How To?

    Wow I might be in over my head here. I just started working with IC's a couple days ago so a lot of this doesn't make to much sense right now. There on sale at my local shop for 40$ right now I just wanted a nice winter project to keep me busy:) M2917N based Frequency to Voltage Tachometer...
  12. C

    Shift Light - How To?

    Curious if anyone knew a schematic for a shift light powered off your distributor. I know it uses a 12+/0 Type signal so a Freq>Voltage Transistor would be needed; something like this: Lm2907~ http://www.national.com/mpf/LM/LM2907.html#Overview Let me know if anyone has a link or a drawing...
  13. C

    LM 338 Driver Problems

    Success!!! I ran the LEDs for 30min straight. I used a 120mm Computer fan I had kicking around propped up on two tissue boxes (high tech:)) There were 3 LEDS running in series putting out 455ish mA. There was no heatsink on the back of the LEDs but the fan was directly blowing on them...
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    LM 338 Driver Problems

    Well i'm glad i'll be running them more stable. Ill do a bench test today with 3 meters (perks of working at a mechanic shop I guess) -one measuring voltage at the PS -one measuring voltage at an LED -one measuring amps in the chain of three -I'll also check the temps of the LEDs (with a IR...
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    LM 338 Driver Problems

    Tested the PS and its around 12.1V... This is REALLY odd. I mean I had the LEDS running for around 1min and they started to get warm, but not hot so with the heatsinking they are getting, i'm sure they will be more then good. The 7W resistors are 1.24Ohms. They also have a 2%Tol, Good stuff...
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