restorer-john
Grand Contributor
maybe a better thing to do would be to think about various claims or concepts that were part of the '70s zeitgeist* but are not viable claims today
maybe things like damping factor or slew rate
* see: no Latin!
Damping factor and slew rate are both perfectly valid measurements, be it today, or in the 1970s. Whether you attribute them with significance in relation to reproduction is another matter.