Thanks Pudsey, I know I already said that and thought you must have missed it. However that is what it is (printed on the board), but it seems to be non existent now. There are 185s and 285s and the write-ups I have read say that replacing 85 with 185 or any of the others, of which there are many similar, is very tricky so it is best to have the 85 refurbished. If I can find an expert refurbish-er I will take it off and send it. Do you know of one?, Harry