[ARC5] Converters for Q5-ers (PS hum)

[Kenneth G. Gordon]

On 20 Jan 2015 at 12:59, Leslie Smith wrote:

> (4) The result is quite different when I use (modern) headphones.
> 
> The sound quality is quite good (except for the point below)
> considering the narrow I.F. (The I.F. 'slugs' are pushed 'in'.)

If the slugs are pushed IN, the bandwidth is at its WIDEST, not its narrowest.

At its widest, the IF passband has a "double-hump" in its shape.

It also sounds to me as though the IFs are not all aligned at the same center 
frequency. 

Ken W7EKB