EMRFD Message Archive 7255
Message Date From Subject 7255 2012-02-16 05:02:37 ALAN MELIA re VCO You could get maybe twice the range by mixing two vcos and tuning one up and the other down with the same control. This gives you much more shift, and its is probably best at the highest frequency you can get. Otherwise a "Huff anf Puff" might be the easiest way of stabilising a tunable osc.
It all depends what you are trying to achieve?