[HBR] Regenative receiver question - audio choke

[Stan Wilson]

My basic question is why such larger audio chokes.  I note on the
designs from the 20s and 30s it often calls for 30 H to 100 H audio
chokes in the power supply line of the regen detector.   I can
understand why one wants to decouple the audio and power supply but this
seems out of line.   In modern day regen designs the choke often
disappears and replaced by a hi value resistor.

In  addition some of the old articles talk about howl and some even
suggest a hi value resistor in parallel with the choke to kill the howl.

Has anyone ever ran SPICE on the coupling circuits to see what the
frequency response looked like with and without the choke ?

De stan ak0b