"Jo" wrote in message
...
In ,
harrogate2 typed:
"Jo" wrote in message
...
In ,
harrogate2 typed:

At a guess they may be 10" Super RSDD (that's roll surround
doped
diaphragm)


They are actually 12" units...did they do a 12" Super RSDD around
1975 ?

Wharfedale (please observe the H) is now part of the IAG group
based
in Huntingdon and IMSMC still repair old original kit - you can
but
ask.


Thanks, I would expect Wharfedale (with the 'h' ) to insist on
doing
the repairs rather than sending out parts. I will try them. I'll
check them out. They may, at least, have some info on the driver
specs.

Otherwise try Castle Acoustics in Skipton. The Co. was set up -
again IMSMC - by a chap called Cliff Collinson who worked for
Gilbert Briggs at Wharfedale at about the time it was taken over
by
Rank and I think had much to do with the design of the 8" and
10"
RSDD drive units. As Castle build their own units they may be
able
to help.

Again. thanks for the lead.

Jo




The size was that of the cone, and as you stated your cone was
247mm
across I would make that a 10"?

I see, I'm used to the more conventional sizing, that of the frame.
FYI, my
spakers may well be RS DD units, since I just saw them described as
"with
square magnets", which mine have.

Jo


Actually, thinking about it you may be right. I don't remember a 12"
RSDD......


--
Woody

harrogate3 at ntlworld dot com