I DO NOT SUPPLY
In this section I've recorded what I have had to do so far in refurbishing the soundboxes on my gramophones. An HMV No.4 refurbishment I've detailed from start to finish of almost everything with the exception of replacing the diaphragm which, as I remove the existing diaphragm as part of the procedure would just be a case of re assembling with the new diaphragm instead of the original I used. In addition a Columbia No 15 soundbox is shown.
Other pages cover odds and ends such as making No. 4 gaskets, a tonearm insulator for an HMV 5 series. etc. All is based purely on my personal endeavours to solve soundbox problems and do not represent any more expert opinion. All I can say is they have worked for me.