[R-390] Repairing mechanical filters

[Graham Baxter]

Hi All,

Some of you may have been following my accounts of the restoration of
an EAC R390A. Thank you to all who have helped and encouraged me. The
receiver is now working pretty well, and it is quite clean.

I was plagued by 'iffy' mechanical filters, so I decided to take the
bull by the horns.

Since this is a long winded story which needed pictures I have put a
draft copy of an account of my experiences on:

http://www.delphelectronics.co.uk/filter390a/

I would welcome your comments and suggestions for improvements. Think
of this as a work in progress.

By the way, I am still looking for an audio output transformer that
won't look out of place in a 67 EAC. PayPal waiting!

Thank you

Graham Baxter
G8OAD