[TenTec] TenTec designs question

[Don Rasmussen <wb8yqj@yahoo.com>]

I have been enjoying the Ten Tec classic analog
designs lately - Century 22, OMNI C, and Corsair. 

They seem to have many design commonalities such as
audio derived AGC. Does anyone know if the same person
or team engineered many of these designs over the
years, or if there were multiple engineers that were
mandated to stay with certain practices?