[Boatanchors] HRO-50T, odd response

[J. Forster]

Is something in the generator clipping? It sounds like the AM modulation
might be square wave.

FWIW,

-John

=================


> Restoring one from the ground up.
>
> With the BFO off, selectivity off (xtal filter out of circuit), DC coupled
> probe at detector o/p:
>   - CW input gives single peak of reasonable width
>   - 1kHz AM input gives two peaks with a pronounced null between them
>
> There are only 3 IFTs (counting the xtal filter unit) in the IF strip. I
> don't understand how
> anything can be narrow-band enough to do this, unless perhaps an IF stage
> is
> at the
> edge of regeneration. What's going on?
>
> 73, ian K3IMW
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