david76cz, there is information at 44bx.com/tannoy/index.html that indicates the manufacturing period for the re-vamped HPD 385 speaker is between the years 1975 and 1977. Tannoy stopped supply of the factory assembled replacement 7900 0008 cones some time ago and if you can actually locate someone who has hoarded spares and wishes to sell them, they will be expensive . Lockwoods have gone to a great deal of trouble to manufacture replacements and Tannoy enthusiasts should be grateful that speakers in need of a complete service can still be repaired.
