FM De-Emphasis

[2pair]

What is that?

I received a vintage s/s analog tuner in the mail today, and it has a switch on the back labeled: FM De-Emphasis 25us/75us. Thats not exactly what it says...the u has a tail, I'm sure someone knows what I mean.

Anyway what does it do?

[morbo!]

i think that would be for a diffrent radio zone

puts it in between your bands for peoplez like me

do america and canada use

the same system?

[2pair]

ummm.., Huh?

[spkrman57]

The normal position has a normal response(filter), with the higher de-emphasis(less filtering on HF section) you could run it through a Dolby noise reduction unit if desired.

Ron

[spkrman57]

The funny looking "u" is abreviation for "micro" as in micro seconds if I recall correctly.

Ron

[morbo!]

that was my first thought u is for micro seconds!
but i do remember pulling apart many radio`s in my youth and some do have a switch like that on the inside or back to change zones if you take it to a diffrent country
easy way to tell put it on a station and flick the switch