03-04-2018, 07:43 PM
I don't know if there was really less noise coming through the power lines so much as different kinds of noise, such as street cars, mercury vapor rectifiers, brush motors, and diathermy machines. The model 20s were built to a price, hence why they used 71As as power outputs whilst the industry standard was #45s, so I'm not surprised about there being no line caps, if someone wanted a better model they would get a model 96.
Regards
Arran
Regards
Arran