Regen receivers of the past.

[catman]

G'day all, I recently built myself a regenerative receiver for the broadcast band based on the classic Armstrong circuit using a field effect transistor and whilst it is extremely fiddly to tune, its sensitivity is quite impressive.

I wonder if in the valve/tube days of the past whether any regenerative receivers made any appearance in the consumer market, alongside TRF's and superhets? Regards, Felix (vk4fuq) aka catman.