We are currently in the process of digitising  a series of cassettes recorded in the late 1980’s on the book of Revelation. This will take some time, and the quality of the sound file may be a bit variable because of the age of the cassettes [but so far seem to be reasonable]. The first 8 sermons are now available in the ‘Sermons’ section of the site under ‘Series’ and entitled ‘Revelation’. New messages will be added during the ongoing task of digitising, as they become available. Keep checking.  You can find this series here.