Hans have several devices for sound recording, but lacks a small microphone. This one seem to have decent specification and price according to the manufacurer: "a broadcast-grade omni-directional lavaliere microphone designed for mobile use".
Hans buys the microphone 2017-03-05 from Scandinavian Photo for 316 SEK.
Hans has a nice sound recorder already, the Zoom H2n, but it is a little bit too complicated to operate and bulky. Therefore Hans wants a compact, easy to use recorder. Olympus has exactly what he wants and he buys the DP-311 from Dustin 2016-05-31 for xxx SEK.
Hans purchased the recorder in London 1983. It was not available on the Swedish market.
This standard type of tape recorder was used to record Klas first noise.
This was a very small tape recorder at that time. No recordings from this time is left.
In the end the recorder was dismounted into pieces. With this recorder Hans learned how a tape recorder was designed. The erasing "head" was a permanent magnet that was moved towards the moving tape.