Search results

  1. bigkim100

    4017 Different LED count

    Any way to get a 4017 (Driven by a 555) to count down rather than up. can this be switchable from counting up, to counting down LEDS?, or will I have to use something different than a 4017? Thanks in advance for any help
  2. bigkim100

    Adding Frequency Scanning to any AM/FM/SW Radio

    I need a circuit that can be added to any recent AM/FM/SW Radio. It should allow the scanning speed to be variable, as well as reversing the scanning (highest to lowest/lowest to highest). Any ideas? Thanks in advance:confused:
  3. bigkim100

    Video over laser

    I would like to send video over a short length (12 inches). Is there any way to do this inexpensively? I was thinking of using the laser/receiver units of a dvd p[layer, but then I thought that the DVD player may not respond without seeing an actual dvd, and its regional data in its proper...
  4. bigkim100

    9014 Direct Replacement???

    Ok, simple question, I have a 9v circuit that flashes a led. The output of the LM358 is a 9014 transistor. I want to add more LEDs but the 9014 gets a little warm....is there a power transistor that can directly replace it????
  5. bigkim100

    CHARGING OF EVIL FUTABA BATTERY PACK

    I have a Futaba Battery Pack that is a plastic-wrapped cabal of 8-AA batteries, marked Ni-Cad 9.6V 700Ma. I would like a cheap and easy schematic for a charger for this. Thanks in advance Kim
  6. bigkim100

    SERVO POSITIONING??

    I would like to attempt to simulate a Tank Barrel Kick Back, using a servo. While I know that this can be done simply using a microcontroller, I have no knowledge of doing so, so I would like to do so with standard components. Is it possible to use a basic 555 servo driver circuit, along with...
  7. bigkim100

    Any help on id of this semiconductor?

    I get 2N170...whatcha think??
  8. bigkim100

    These transistors needed

    I need a quantity of 30 of each of the following transistors: 2sa945- Possibly a 2n2222 could be a replacement 2sd467- Possible replacements You can replace 2SD467 with 2SC1383, 2SC1384, 2SC2235, 2SC2383, 2SC2655, 2SC3228, 2SC3243, 2SC3328, 2SC3940, 2SC3940A, 2SD438, 2SD468, 2SD592, 2SD592A...
  9. bigkim100

    Squawk Box

    I have a little "SQUAWK BOX" in a toy from the 70's. Its supposed to make R2D2 type noises, and does, the only thing is that the volume is really low. Battery is ok, speaker is ok, so what should I be looking for. Yes it has NO ICs, just regular analogue components. Any ideas??? Thanks in advance
  10. bigkim100

    Water-Tight Connector ???!!!

    I haave a radio control submarine that is faaar too complicated and faar too many screws to take apart every time I have to charge the battery pack. Is there some sort of waterproof dc connector that I can use to charge , that I can hide in the conning tower?? Thanks a lot, in advance:D
View older results
Top