logo of an N in a circle, ?

[N_Cook]

Maker of potentiometers, switch+pots, "compensated" pots , around in 1979,
probably Japanese (in a Yamaha amp of that time)

 

[N_Cook]

Unusual form, as the tracks are theoretically replaceable , on a separate
arc of paxolin, if you remove the rivet at either end.

 

[Tim Schwartz]

Maker of potentiometers, switch+pots, "compensated" pots , around in 1979,
probably Japanese (in a Yamaha amp of that time)

Hi,

I can't picture the logo, but the most common make I saw after Alps was
Nobel.

Regards,
Tim Schwartz
Bristol Electronics

 

[N_Cook]

Hi,

I can't picture the logo, but the most common make I saw after Alps was
Nobel.

Regards,
Tim Schwartz
Bristol Electronics

A lazy-S these days, perhaps a simpler N in the simpler 70s

 

[Mike Tomlinson]

Maker of potentiometers, switch+pots, "compensated" pots , around in 1979,
probably Japanese (in a Yamaha amp of that time)

Before my time, but possibly Nichicon, whose name I have seen on caps?