PSpice simulation of phase-shift oscillator doesn't work
Now that you have it working.

Is the sine wave distorted?
Will it work over a 3:1 range in hFE?

Or a range in Vcc from 3.3V to 24V?



By adding some DC bias to pulldown the base or use more negative feedback to reduce distortion but that also reduces gain.  So the ratio of Feedback and Base to ground ought to be around 10:1 while the Rfb can now be reduced to 25x Rc.
The trick I added here is some positive feedback to raise the base impedance and reduce sensitivity to hFE, Vdd.  Although this is much more linear, the amplitude is not well controlled which requires a soft limiter which then introduces some distortion.
The innovation I added with a couple of resistors is to maintain a feedback R ratio but add an emitter resistor that is &lt;= 10% of Rc which makes it has some negative and positive feedback &quot;bootstrap&quot; effects to raise input impedance and keep the Collector current &lt; 10:1 range for full-scale signal.  This is the trick to make it linear, rather than saturate at Imax and starve at low gain at Imin with &gt;&gt; 10:1 max:min ratio.  By raising the input impedance, I was trying to get input impedance near 10k which before, was much lower with Vbe to ground,

The Resistor values are not too critical, HOWEVER, the ratios are important for the biasing, gain, stability and linearity. Notice the R ratios from Vcc to collector to base to ground.  The 3 stage HPF uses the same R values as the collector here but could be changed.