Hello- I'm looking for a cheap soundbox. I have a British-made Columbia Viva-Tonal portable- at least that's what it SAYS under the lid. It looks like a re-branded and somewhat stripped down HMV 101. The case is in rough shape but the arm and motor are fine- when it was working it sounded super. Problem is, the reproducer is shot- the aluminum diaphragm went bad years ago, not helped by my tinkering (forgive me- 30 years ago before the internet I couldn't find anyone to fix it) and it has pot metal problems now. I tried a new diaphragm, but it's too stiff. It has a fitting slightly larger than the US standard, so nothing will interchange. Does anyone have a replacement? Eric Stott, Albany NY