I used some heavy duty 20 amp toggle switches on my power supply to my phono stage.
Like this
http://www.delcity.net/store/Heavy!duty-Toggle-Switches-!-Flat-Terminal/p_788975
The rational being the 20 amp continuous rating was more than adequate for most hi-fi components - even amps i.e. under 2000 watts :-)
It seems to work very well and due to the heavier internal mechanism it makes and breaks contact quickly with no arcing (i.e. that I can hear :-)
Just Google "toggle switches with silver gold contacts" and you will find a large selection that may be suitable. I would go with 20/30 amp models for an amplifier, preferably made in the US :-)
Switches are perhaps the most hard working component in any electrical circuit due to arcing when turning off
Well made switches have a mechanism that release very quickly - in most cases eliminating the possibility of arcs forming - when I used to work in the switchgear industry silver contacts were preferred for their durability and if I recall correctly, it helps prevent arcing - that could have changed since then.
Since yours are old I would recommend changing them. Will they sound better? It doesn't hurt to try :-)
Like this
http://www.delcity.net/store/Heavy!duty-Toggle-Switches-!-Flat-Terminal/p_788975
The rational being the 20 amp continuous rating was more than adequate for most hi-fi components - even amps i.e. under 2000 watts :-)
It seems to work very well and due to the heavier internal mechanism it makes and breaks contact quickly with no arcing (i.e. that I can hear :-)
Just Google "toggle switches with silver gold contacts" and you will find a large selection that may be suitable. I would go with 20/30 amp models for an amplifier, preferably made in the US :-)
Switches are perhaps the most hard working component in any electrical circuit due to arcing when turning off
Well made switches have a mechanism that release very quickly - in most cases eliminating the possibility of arcs forming - when I used to work in the switchgear industry silver contacts were preferred for their durability and if I recall correctly, it helps prevent arcing - that could have changed since then.
Since yours are old I would recommend changing them. Will they sound better? It doesn't hurt to try :-)