A
Andyh7
I am looking at a receiver/amplifier that was manufactured in the mid 1970s. It has a very solid all metal case. It is powered by a mains lead that has only two conductors, active and neutral. It does not have any Class II notation or symbol anywhere on the case. I am wondering whether the mid 70s might have been a time when double insulated appliances were manufactured prior to Class II standards and notation requirements. The appliance in question is an Aiwa AX-7500.