Wind Generators and Wind Speed Meters

Using ultrasonic techniques, this solid-state design has no moving parts.

Are there some healthful positive benefits caused by being in an environment that contains negative or positive ions? Some reports suggest a wide range of benefits. This generator can be set up to generate either negative or positive ions; the builder's c

Features a telephone ring generators, phone line in-use indicators and an audio interface circuit.

Our low cost stereo encoder is the perfect way to transform your radio statio into stereo sound with a low budget.

Our low cost stereo encoder is the perfect way to transform your radio statio into stereo sound with a low budget.