I do not have any data on temperature drift, but I can say that most YIG oscillators I have used, with the exception of the Stellex-mini models, have required a tuning current to oscillate. The Stellex-mini models have a strong bias magnet which allows the tuning current to be zero at mid tuning range.

John  WA4WDL

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From: <[email protected]>
Sent: Saturday, December 08, 2012 9:17 AM
To: <[email protected]>
Subject: [time-nuts] YIG oscillator drift question

Does anybody have direct experience on playing with YIG oscillators? I have read some specs on drift, but I know they are usually worst cases. I would like to get a raw idea about real measured drifts in reasonably stable temperature for a free running YIG with no tuning current. Yes, of course this depends on make, model etc, but any advise would be appreciated.Thanks in advance,Antonio I8IOV
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