Dr nEon
Well-known member
Neon mains switches in particular..
When I built my first gssl , i wanted an uncluttered simple front panel , and ditched the 'power on' led in favour of a green neon illuminated mains switch , pretty much identical to the ones Amek use on their 9098 rackmount gear. (R13-73 series ) www.mouser.com/catalog/633/1567.pdf
The gssl has always seemed pretty clean , humm free etc..
I've since found comments to the effect that neon induces noise etc..
In another thread , guru PRR advises that they are generally bad for audio.
This is something that has been bugging me for a while , but i've searched hard without finding much more explanation on this..
Are they just bad ,period , or are they bad in certain applications (mic pres say) ?
In a circuit like the gssl , how much noise might that be introducing ?
Can the psu reservoir caps / regs /filter caps not usually cope with this?
I'm asking this now because I'm in the process of swapping out the gssl innards , to replace with the ultimate ssl circuit , and I figured now would be a good time to ditch the neon mains switch (and drill the panel for a power led) if there is something to be gained by doing so..
Lastly , companies like AMEK and SPL are using these kind of switches.....so how do they get around the pifalls of neon??
Cheers
nEon
(no pun intended!)
When I built my first gssl , i wanted an uncluttered simple front panel , and ditched the 'power on' led in favour of a green neon illuminated mains switch , pretty much identical to the ones Amek use on their 9098 rackmount gear. (R13-73 series ) www.mouser.com/catalog/633/1567.pdf
The gssl has always seemed pretty clean , humm free etc..
I've since found comments to the effect that neon induces noise etc..
In another thread , guru PRR advises that they are generally bad for audio.
This is something that has been bugging me for a while , but i've searched hard without finding much more explanation on this..
Are they just bad ,period , or are they bad in certain applications (mic pres say) ?
In a circuit like the gssl , how much noise might that be introducing ?
Can the psu reservoir caps / regs /filter caps not usually cope with this?
I'm asking this now because I'm in the process of swapping out the gssl innards , to replace with the ultimate ssl circuit , and I figured now would be a good time to ditch the neon mains switch (and drill the panel for a power led) if there is something to be gained by doing so..
Lastly , companies like AMEK and SPL are using these kind of switches.....so how do they get around the pifalls of neon??
Cheers
nEon
(no pun intended!)