[R-390] R-390A Mechanical Filter replacement

[Roy Morgan]

At 05:05 PM 6/11/03 -0700, Bob wrote:
>Also waaaa-aay cheaper than a new stagger-tuned L/C retro-fit into an A I.F.
>deck.
>
>The early mech filters were much more peaky in the passband than what was
>later considered good in the late 75A's and 75S's. As much as 6dB!

Bob,

Do you mean either or both of the following..???

1) Pass band ripple in the R-390A filters can be as much as 6 db.

2) Pass band ripple in the filters used in the 75A and 75S receivers is 
much less than 6db.

Thanks,
Roy


- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
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