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I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes:   

enter image description hereschematic

Edit: Here's the missing bit of the circuit that uses the (half-rectified?) 12VAC:

schematic2

PS: I edited this bit of the circuit out of a larger schematic (there's more stuff to the left), and it probably makes sense to put any input jacks on the outer side of the whole schematic, which is the right-hand side in this case. So yeah, it's not an Arabian schematic :D

PPS: Thanks a lot for the quick and very helpful answers! I'm new to this community and really didn't expect such a helpful and thoroughly explained analysis.

I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes:  enter image description here

I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes: 

schematic

Edit: Here's the missing bit of the circuit that uses the (half-rectified?) 12VAC:

schematic2

PS: I edited this bit of the circuit out of a larger schematic (there's more stuff to the left), and it probably makes sense to put any input jacks on the outer side of the whole schematic, which is the right-hand side in this case. So yeah, it's not an Arabian schematic :D

PPS: Thanks a lot for the quick and very helpful answers! I'm new to this community and really didn't expect such a helpful and thoroughly explained analysis.

Post Closed as "Needs details or clarity" by PlasmaHH, Andy aka, Daniel Grillo, uint128_t, Bimpelrekkie
re-added image since it seems to have been invisible to some users.
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I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes:

schematic http://i.imgur.com/5wRGLKO.png enter image description here

I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes:

schematic http://i.imgur.com/5wRGLKO.png

I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes: enter image description here

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Will using an unregulated power supply with a low current draw give too much voltage?

I have a device that needs a (regulated) 12VAC power supply, which turns out to be close to impossible to find.

But, I also have an unregulated 12VAC 1A PSU, which reads 14.4V without load. So, since the device will only draw its specified 320mA, and the PSU is marked at 1000mA, I'm guessing the voltage of the PSU probably won't drop close to 12V, but rather around 13-point-something at that load. So my question is, is this PSU close enough to do the job, or could the possible excess voltage fry something?

Here's a screenshot of the part of the schematic where the PSU goes:

schematic http://i.imgur.com/5wRGLKO.png