This kit (IPC-4805-W) offers both a transmitter and receiver for measurement of the velocity of sound by a modification of Hebb’s method. The kit itself consists of a separate loudspeaker and microphone, both mounted in plastic cases and fitted with a pair of 4mm connection sockets.
The loudspeaker can be driven directly by a signal generator, while the electret condenser type microphone comes supplied with a battery and can be fed directly into an oscilloscope.
A full set of operating instructions comes supplied with the kit and can also be downloaded – see below.
Replacement Units
Microphone (IPC-4220-W)
Loudspeaker (IPC-4678-W)