"Paul Burridge" wrote in message
...
Hi,

They look worryingly inductive on visual inspection (there are metal
foils rolled up in thar by the look of it.) And yet the CPC catalogue
says that their properties make them ideal for use in filters. Has
anyone any remarks (favourable or otherwise) to make about the use of
this type of cap in filter apps?

They are OK for LF filters, the inductance won't make any appreciable
difference and they are available with 1% tolerance. They are getting
difficult to find. They are also useful for RF oscillators.

Leon