ONE Power Supply for TWO amigas

[tFt]

Could you use a ATX power supply to feed TWO Amigas?
If so, how would you go on to hook that up using switches for one or both turned on/off.

Could you leave GND and -12 as "Always ON" and use a 2-pole switch for +5 & +12 , or how would that work/not work out?

[pandy71]

Use relay(s) to manage power and with single switch you can control multiple voltages at once.

[Lord Aga]

Two Amigas, one Controlled Usage Power?

[admiral]

There is a ready-made product for that, even.

[aeberbach]

Originally Posted by Lord Aga

Two Amigas, one Controlled Usage Power?

The reaction videos would not be nearly as good

[tFt]

Originally Posted by admiral

There is a ready-made product for that, even.

Yep, been considering that one actually. Looks really nice
But 100 Euro for a power supply.....kinda high up there for a cheap bastard like me

But for the "Technical Curiosity" please go on people....tell us how they did it, Relays as @pandy71 suggested?
Or would a 3-pole switch do the even cheaper trick...leaving GND always connected.
And can the -12V also be left connected, or what (possible) repercussions would that have?

[S0ulA55a551n]

Originally Posted by aeberbach

The reaction videos would not be nearly as good

[Krashan]

Originally Posted by tFt

Could you leave GND and -12 as "Always ON" and use a 2-pole switch for +5 & +12 , or how would that work/not work out?

GND alone may be left connected. However leaving –12 V connected without providing also +12 V, may be harmful for audio op-amps, also damaging output audio capacitors by reverse polarization. Then, either use 3-pole switch or relays.

[Predseda]

Originally Posted by tFt

Yep, been considering that one actually. Looks really nice
But 100 Euro for a power supply.....kinda high up there for a cheap bastard like me

Yes, it is expensive, but I kinda like it.

[pandy71]

Originally Posted by tFt

But for the "Technical Curiosity" please go on people....tell us how they did it, Relays as @pandy71 suggested?

Perhaps they use MOSFET's and some control circuit to enable MOSFET's or perhaps even something more sophisticated like for example https://www.maximintegrated.com/en/p.../MAX15096.html
Currently there is plenty power switching solutions on market - single channel, multichannel, some power supervisors etc.
But IMHO relay is simplest possible approach.

Originally Posted by tFt

Or would a 3-pole switch do the even cheaper trick...leaving GND always connected.

IMHO 3PST (3PDT) switch is more difficult to find than 3PST (3PDT) relay but if you can find some switch then go for it simple solution is always better than complex one.

Originally Posted by tFt

And can the -12V also be left connected, or what (possible) repercussions would that have?

As already pointed by Krashan - GND can be connected and there is no problems there but constantly powered -12V line may create problems, personally i would avoid such state.