|
Flashing Light Circuit 1 - (electronic circuit added 4/05) |
|
Flashing Light Circuit 2 - (electronic circuit added 4/05) |
|
Flashing Light Circuit 3 - (electronic circuit added 4/05) |
|
Flashing Lights for Planes and Helicopters - ….must register on this
site.... [Published in Elecktor July/August 2010] |
|
Flashing neon christmas lights - This flashing set of neon Christmas lights
will make an attractive decoration for any time of year. Bl is made up of ten 9-V
transistor radio batteries in series. The battery life can be measured in
months….(electronic design added 6/07) |
|
Flashing Neons NE 2/NE 51 - In this circuit, one, two or three neon
indicator bulbs can be made to flash in sequence at rates determined by the R and C
values. In the single stage circuit, using one lamp, the capacitor charges through the
resistor until the ionization potential of the neon is reached (about 70 volts)
and..... [Bill Bowden's circuit] |
|
Flashing Railroad Lights - This circuit flashes two red LEDs for a model
railway crossing. |
|
Flashing Rear-End Device For DCC Systems - This circuit is for a "F.R.E.D."
that is designed to be used with DCC control systems. The circuit is based on the
LM555 timer chip. [from Rob Paisley's Model Train web site] |
|
Flashing Road Barricade - This design has a low duty cycle to preserve
battery life and underdrives the cold filament to extend bulb life (added 2/05)
[Reverse engineered schematic by Stepan Novotill] |
|
Flashing/Pulsing third Brake lite for cars - Several years ago these
flashers were introduced in the automotive industry as part of the third brake light
and contained strobe lights (and strobing continuously for the duration of pressing
the break pedal) but got abandoned almost immediately sometime later because of the
'strobe' effect it has on some people. This circuit has become obsolet since
much better circuits are available these days without the 'lag' in between brakes
caused by R4 and C3. One of the circuits is listed below.…. [Tony van Roon's circuit] |
|
Flashing-Cum-Running Light - ..... |
|
Flashlight Timer - A nice design which even turns off if the pushbutton is
held depressed or jammed a long time. Not re-triggerable while the light is still on
though (added 2/05) [Reverse engineered schematic by Stepan Novotill] |
|
Flashy Christmas Lights - .... |
|
Fleapower flasher draws less than 50 µA - 23-Jan-03 Issue of EDN Some
applications require a circuit to indicate that a battery's voltage has fallen below a
certain value. However, if you don't frequently check the indicator, the low-battery
indicator itself can easily discharge the battery. The circuit in Figure 1 indicates
when the battery voltage has dropped below a preset value..... [Design Idea by Gary
Butterfield, IEC Electronics Technology Center, Newark, NY] |
|
Flicker Lamp - Having bought a cute little ‘paraffin lamp’ from a cut price
shop, I decided to make it a little more interesting. Its battery powered of course
but its continuous shine and simple on / off ‘wick control’ did not make for anything
like a close simulation of the real thing. So, I replaced the on / off control with a
variable potentiometer and I added flicker!.....(added 04/04/04) |
|
Flickering Fire Effect - This simple circuit uses four low-Wattage colored
bulbs and four fluorescent lamp starters to make nice flickering flame effect. (added
4/02) |
|
Flickering Fire Light - This may well be the world's only discreet logic
circuit to generate truly random output. It makes an excellent candle flicker light
for your Halloween pumpkin, and looks much more authentic than a shimmer light
wherever a good a simulated flame effect is required. I do not guarantee the accuracy
or safety of any information herein..... [Circuit by Stepan Novotill] |
|
Flickering Lights - Halloween flickering lights (electronic circuits
added 11/06) |
|
Flip Flop Circuit - In this project we examine one of the most valuable
circuits to be invented, the flip flop. Originally it was designed with VALVES, along
with its simpler version (without the two capacitors, called a bi-stable
Multivibrator), it was realised it …(circuits added 04/09) |
|
Flip Flop Flashers Buzzers Etc - Several circuits here. The familiar
astable flip-flop circuit is a handy configuration for making flashers or generating
squarewaves. Here is a typical alternating LED flasher with the LEDs in the emitters
instead of collectors as is normally done. The bias resistors are directly
connected.....(added 04/05/06) |
|
|
