[sdiy] Black Magic oscillator cans

[Glen]

At 02:43 PM 7/20/03 , John L Marshall wrote:
>Crystals can be trimmed to an exact frequency with a small variable
>capacitor, either in series or parallel.

I'm aware of that, but the tuning range is fairly limited. The amount of
tuning range is also affected by the oscillator circuit design, as well as
the crystal itself. Some circuits and crystals are more "tunable" than others.

Do you happen to know if a "typical" 2 MHz crystal oscillator could be
tuned this way to a frequency of 2.00024 MHz? I don't have much "hands-on"
experience with the limits of a crystal's tuning range.


later,
Glen Berry