Back then radio's  were known as wireless receiving sets.  These were quite large and heavy compared with today's models.

Programmes were made especially for schools but you had to listen to them as they were broadcast.  There were no tape recorders in those days.

This is the entry My Barrett, the head teacher, added to the school logbook:

1935

November 6th "A wireless receiving set (Echo) has now been fixed in the school…”