View Single Post
Old 18th Feb 2014, 8:56 pm   #7
Join Date: Jan 2014
Location: Woking & Kingswood S.Glos. UK.
Posts: 27
Default Re: HMV and Columbia soundbox identification

Further to Barry's information, there are 2 versions of the Columbia No.9. One with a domed front and one with a truncated cone front, the latter were also fitted to the plano-reflex tonearm in portables at least.

I have also added photos of a couple of diaphragms. An HMV No.5b and a Columbia/HMV No.15.
Attached Thumbnails
Click image for larger version

Name:	SAM_0049 copy.jpg
Views:	550
Size:	110.9 KB
ID:	89213   Click image for larger version

Name:	SAM_0050 copy.jpg
Views:	641
Size:	118.3 KB
ID:	89214  
knightley is offline