[HBR] 75khz slug tuned coil question

[ke9xq at charter.net]

I was thinking I heard these will work if you select a frequency
such as 75, or 85 or 100, you have to reconsider the specifics, but
should work...
73
Bill



On Thu, May 24, 2012 at 7:39 PM, Bill Cromwell wrote:

> Hi Bill,
>
> The I.F. cans are made to operate a specific frequency with a 
> specified
> Q which directly affects the bandwidth in your radio. Some of the cans
> have variable caps in them for tuning instead of slugs in the 
> inductor.
> Most of them can probably be stretched the amount you are talking 
> about
> but the performance might be degraded. That won't matter much if the
> radio has an xtal filter for selectivity but the one you are building
> relies on those I.F. cans for selectivity.
>
> If you have 75 kc cans coming I'll hold onto the 85 kc ones I was 
> going
> to send. I don't have a 85 kc BFO coil I can spare so you will be 
> better
> off if the 75 kc set includes that. Good luck with your project.
>
> 73,
>
> Bill  KU8H
>
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