Simple, low distortion 1kHz oscillator

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For anyone in search of a low distortion oscillator, this is the section from the Krohn-Hite 6900B Distortion Analyzer. THD measures 0.002% on both the KH and my HP339b Disto Analyzers.

For a nice simple circuit it compares favorably with the analyzer in the HP339b which is 0.0018% (although the latter is adjustable).
 

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Hi,

Thanx for that circuit! I'm actually busy designing something very similar after a JLH (p. 193 (?) of his book 'audio elec.') circuit which also uses a doubleT-notch filter but a BJT for the feedback signal.

I'm going to try to use a light-bulb for the amplitude stabilisation.

Any suggestions how to do that?

Thanks and greetz,
Thijs
 
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