[ARC5] Audio power output and BFO fixed - 10 meter BC-454

[Geoff]

Subject: Re: [ARC5] Audio power output and BFO fixed - 10 meter BC-454


> On 18 Feb 2013 at 17:40, Bob Macklin wrote:
>
>> Ken
>>
>> Would it be practical to use the BFO for a second mixer to convert the
>> 1.4? KHz IF down to 190/550 to feed into a BC-453?
>
> Yes. In fact, there was at least one article in QST magazine in which that
> was done, but for some of the lower bands.
>
> Ken W7EKB

Has anyone taken a regular BC-454 with bandspreading  a step further and 
changed the first IF stage to a mixer to 455kc, added a wide and sharp 
ceramic filter, used a 455kc IF can for the 2nd stage, etc?

Then with external converters it would be a half decent radio to mate to a 
vintage AM/CW transmitter such as a DX-60.

The BC-453 is too sharp for quality AM.

Carl


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