Paul Burridge wrote:
Thanks, Don. I'm aware this is a daft way of doing it, but I don't
have much choice. The IF stages of this rx are not accessable and no
schematic is available, either. The makers have declined to make them
available and threatened any service personel who do so with
termination of their contracts.

Please tell us the name of this incredibly awful company so that we may
avoid buying their products.

--
All relevant people are pertinent.
All rude people are impertinent.
Therefore, no rude people are relevant.
-- Solomon W. Golomb