On Wed, 10 Dec 2003 00:07:59 +0000, Paul Burridge
wrote:


Hi,

I'm currently working on this VCXO that achieves frequency shift by
applying DC bias to two varactor diodes connected cathode to cathode
(bias applied to the junction between them). If I can't get enough
shift with the available bias voltage, is there any problem with just
putting another pair of the same diodes in parallel with the existing
ones?
This is a ceramic resonator oscillator, BTW, so will stand a lot more
'pulling' than a xtal would, so don't worry about that aspect of it.

p.

Sure. Is this a coaxial ceramic resonator, or one of the low-freq
piezo things? What's the frequency, Kenneth? [1]

John

[1] old Dan Rather joke, sorry.