![](https://coimages.sciencemuseumgroup.org.uk/41/177/large_thumbnail_1975_0359__0001_.jpg)
![Telesonic Lorgnette, made by A&M Hearing Aids Ltd](https://coimages.sciencemuseumgroup.org.uk/349/880/small_thumbnail_smg00074513.jpg)
![Telesonic Lorgnette, made by A&M Hearing Aids Ltd](https://coimages.sciencemuseumgroup.org.uk/60/90/small_thumbnail_2004_0098__0002_.jpg)
![Telesonic Lorgnette, made by A&M Hearing Aids Ltd](https://coimages.sciencemuseumgroup.org.uk/60/92/small_thumbnail_2004_0098__0004_.jpg)
![Telesonic Lorgnette, made by A&M Hearing Aids Ltd](https://coimages.sciencemuseumgroup.org.uk/60/89/small_thumbnail_2004_0098__0001_.jpg)
![Telesonic Lorgnette, made by A&M Hearing Aids Ltd](https://coimages.sciencemuseumgroup.org.uk/60/91/small_thumbnail_2004_0098__0003_.jpg)
Telesonic Lorgnette, made by A&M Hearing Aids Ltd
In the 1950s transistors and miniaturised circuits made possible the manufacture of compact radio receivers light enough to be portable. The telesonic lorgnette was a device for receiving personal audio commentaries in museums and galleries from low-power radio transmitters with a very short range. Examples of this design were used experimentally in a few Science Museum galleries in 1961. The lorgnettes were returned at the end of the experiment, but this specimen, obtained from BT in 2004, enables the Museum to recall a pioneering test of a now widespread facility.