[Hallicrafters] Re: SR400A on CW

[Mark Shaum]

Don,

I don't have a SR400 or 400A here (wish I did!) but perhaps the RIT was to 
be utilized to provide the desired CW carrier offset?  Is there anything 
about this in the operation manual?

73! - Mark K9TR


>The SR-400A I've been working on is slowly coming to life
>and operates fine on SSB (at least LSB) but on CW it transmits
>about 880 Hz below the frequency it receives on.

>I've looked at the schematic and, as far as I can tell, this
>is normal. There seems to be no provision for producing a
>proper CW signal. There is no CW carrier crystal and the
>sidetone is not fed into the modulator.