New downloads

TT-1 User Guide.pdf

 

ES-1 User Guide.pdf

Pioneers(R2).pdf

These notes include construction details for an electroscope, and use the ES-1 to measure the voltage across, and capacitance of, the electroscope.

 

The new Tilt-Torch (kit TT-1)

The Tilt-Torch is the result of a request by Rod Hunter of LeFevre High School for an entry-level project with a maritime application. To give the torch wide appeal, it can be assembled as:

TT-1(250px)

A simple push-button torch

A simple tilt-activated torch

A tilt and low-light activated torch

A tilt and low-light activated torch or flashing beacon (link selectable)

The downloadable User Guide overviews TT-1 operation, and provides assembly suggestions and a test procedure for the completed assembly. It also includes basic calculations of supply current and hence battery life.

The future Design Guide will detail the decisions made and calculations used in the design process.

 

Electrostatic Sensor (kit ES-1) now availableES-1&meter

The ES-1 connects with a basic digital multimeter to create a low-cost electrostatic voltmeter.

With a probe voltage range of +/- 4kV, an extremely high input resistance and low input capacitance, the ES-1 can measure the voltage across simple devices like aluminium foil electroscopes and capacitors (see the User Guide and Pioneers notes for ideas).