[Premium-Rx] Collins Filter Information?

[Edward Knobloch]

Hi,

The seller's description is in error.
That's a 3 KHz bandwidth filter, type F455B-3,
which could be used with the Collins 75A-3 receiver (early 1950's design).

I've been unable to find it in the usual on-line lists of Collins filters,
but I found reference to one sold with a 75A-3 receiver on the Collins 
reflector.

73,
Ed Knobloch

Tracey Gardner wrote:

> Would anyone on the list have any information on or be able to point 
> me to a source of information on the following Collins mechanical 
> filter, which is currently up on that well known auction site.
>
> Collins Mechanical Filter 75-a3 3 hz f455b-3
>
> The seller claims that it has a 3Hz bandwidth but I'f like o know more 
> about it.
>
> Many thanks
>
> Tracey
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