The Swedish Scientist

The forum would probably benefit from allowing users to attach small files to the posts.

If you have your own server simply adding another hard drive for these files would not be very costly. However, if you are renting server space it may become a bit expensive.

Where do you buy pyro tubes?

I have searched the internet and the forum to no avail. All tips you have are welcome.

I was looking for a remote firing system, and was shocked when I saw the prices on these things.

The principle is very simple; a transmitter, a receiver and an amplifier. For the transmitter there are very many alternatives out on the market. For example circuits from ordinary RC toys could be used safely, as long as a few modifications are made. By adding an oscillator circuit and buttons to the transmitter and appropriate circuit wired to the receiver circuit should do.

Another alternative is a cell phone. By wiring a circuit to the loudspeaker's wires you could use the keys of any other phone to trigger the circuit. Using a walkie talkie is of corse also an option.

As for the amplifier, something reliable is needed. I think that something that does not trigger the output until the input reaches 2/3 of the power source. By connecting the amplifier's input to the ground via a resistance you'd avoid static buildup triggering the pyrotechnis.

Are there any blueprints available, or does anybody have ideas about how to build this?

A couple of months ago, I saw a fireworks display on TV at which they used red and blue Weeping Willow Shells!

I got very curious, and am now desperately searching for compositions to achieve this. Just imagine how impressive a barrage of blue Willows would be in the winter moonlight!

Do YOU know any recipes for making a colourful Weeping Willow, in any colour other than the standard charcoal?

Edit: Just to clarify; there was NO charcoal tracer.

Hi, I am looking for coloured firefly star compositions, please post anything you have. (I'm keeping it short cause nobody really reads the full-screen posts.)