Hello,
I happen to have a spare torroidal transformer at hand, that is rated at 32-0-32 Volts secondaries and 850VA power.
Do you think I can succesfully accomodate it into powering any of the Aleph builds?
Thanks in advance,
Nick.
I happen to have a spare torroidal transformer at hand, that is rated at 32-0-32 Volts secondaries and 850VA power.
Do you think I can succesfully accomodate it into powering any of the Aleph builds?
Thanks in advance,
Nick.
If you do a regulated supply and use a big chassis with big heatsinks then yes.
If this is your first amp project, I would save it for a future build.
If this is your first amp project, I would save it for a future build.
I have build several projects, but never a power amplifier.
Mostly line stages, RIAA correctors (tube/opamp based) and headphone amplifiers.
The power supply will be regulated, probably a PCB design that is a match for the power amplifier. I was thinking of an Aleph build, but from what I gather the are none that can accomodate exactly the 32-0-32 AC that I have on the secondaries.
The closest I see is for the Aleph 5 which has 34 Volts DC on its rails and uses a matching power supply that takes 28-0-28 Volts AC.
If the voltage on the rails is higher, lets say 38 Volts DC instead of 34, would that be incompatible?
Mostly line stages, RIAA correctors (tube/opamp based) and headphone amplifiers.
The power supply will be regulated, probably a PCB design that is a match for the power amplifier. I was thinking of an Aleph build, but from what I gather the are none that can accomodate exactly the 32-0-32 AC that I have on the secondaries.
The closest I see is for the Aleph 5 which has 34 Volts DC on its rails and uses a matching power supply that takes 28-0-28 Volts AC.
If the voltage on the rails is higher, lets say 38 Volts DC instead of 34, would that be incompatible?
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The main negative with an 850 VA transformer with those secondaries would be, you probably won't want to exceed a bias of 2.5 A per channel which is still ok, just not the most optimal for an Aleph design with 38 V rails.
When I say not optimal I mean in terms of efficiency, not sound quality.
It will still sound excellent.
May as well get a 5U x 500mm chassis just to give you plenty of cooling capability.
When I say not optimal I mean in terms of efficiency, not sound quality.
It will still sound excellent.
May as well get a 5U x 500mm chassis just to give you plenty of cooling capability.
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if you insisted to use the transformer, you could save 100US$ for a new proper transformer. But you could end up to spend more to buy a big chassis and heat sink, and cost more electricity in long run and stress your semis etc.
I would say it is not a good idea.
You need to calculate all by yourself.
I would say it is not a good idea.
You need to calculate all by yourself.