开云体育

Yes, the low Q of the Wien bridge is not good for low distortion. I intend to try out that MFB circuit when I get a chance.

Perhaps you'd entertain a non-Wien Bridge oscillator: MFB_Oscillator. A working example sine wave oscillator schematic using an MFB (multiple feedback) topology. It uses no more parts than the usual Wien bridge and offers significantly better (distortion) performance.
?

--
Regards,
Tony

On 17/03/2025 20:33, Bell, Dave via groups.io wrote:

I was trying for the “classical” hardware implementation (cf. HP201C, e.g.)

?

I got a LTspice model working well, using a diode and filter feedback to adjust a behavioral resistor, but that’s cheating.