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-   -   12vdc to 12vac question (https://www.radiobanter.com/boatanchors/25129-12vdc-12vac-question.html)

Scott Dorsey January 17th 05 12:35 AM

In article , jrd wrote:
its for a stereo generator to convert mono to stereo for my recording
hobby. The generator requires 12vac


Keep going. What kind of stereo generator.....
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

jrd January 17th 05 07:28 AM

thanks guys, my questions are answered!
COLIN LAMB wrote:
"Any idea how clean the output off the transformer would be? How clean is
the output directly off a power invertor. The 12vac that i need is for an
audio application."

If the power supply is converting back to dc, it should not be a problem.

The only time it would be of concern is if something gets into the audio
section by transfer outside of the desired path. I would try it and you
will probably find that it is fine.

I have used miy inverter for various projects and never found that the less
than perfect sine wave caused any problems.

73, Colin K7FM



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[email protected] January 20th 05 03:34 AM

Hi, I have a device that requires 12vac but need to use 12vdc as a
source. Is this possible? I see all kinds of 12vdc inverters around but
they all provide 120\240 vac
....[snip]....


Can it be square-wave AC?

I once built a 12-volt to 120-volt inverter with two transistors, two
resistors, and a 120-to-12 volt transformer that was good for about
40 watts.

You might try using a transformer with two 12-volt windings, but, at
the very least, you could another 120-to-12 volt transformer "backward"
to give you 12volts AC. But it would be square-wave type AC.

--Myron, W0PBV.
--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)


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