U5 was the programmable power chip (digital resistor
or some such beast). There was a problem with it and
they just stopped supplying it and removed it from the
schematic. The jumper near R8 allowed its selection
but now of course it is not there.
73 de w1mt
--- John Parkins <john@...
> DDS-60 kit arrived today and I'm just about to start
> putting it
> together. However what's happened to U5?
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