Need 50 Hz AC on the cheap

How cheap? How much power?

Kal

How's the weather there? :-) Might be cheaper to fly than buy, but I don't know if my device would clear security.

I need to drive a device that uses maybe 30 W peak. I have no idea what an AC generator costs. That's where someone thought about a UPS...all we have to do is convince it that we want 50 Hz.

-John O

Sounds like you need a "mains inverter" (makes 220/50 from 12V DC) but don't rely on the frequency being very accurate.

Try MDS...

They have US, UK and french sites and ship world wide.

don't

From left field: There are several power boxes made for high-end audiophiles which allow you to vary the output frequency. Take a look at PSAudio or VPI for a start.

Kal

don't

Exactly. Thanks, I'll check this out.

-John O

To establish a reliable connection with vendors of audiophile AC gear, it is best to use solid gold, or at least gold-plated silver. You may find that the prices leave you oxygen-free.

Whatever. They are available.

Kal

"John O" wrote in news:_LOYb.10624$ snipped-for-privacy@newssvr26.news.prodigy.com:

I wonder if there's a circuit,switch or jumper in a UPS that tells it what freq to output? Or maybe changing an internal clock? You need to get a schematic for a UK UPS,and one for a 60Hz UPS and see what determines the output freq.

Maybe it measures the incoming line F and sets the output to be comparable?

I took an inexpensive 12 volt to 120 volt converter ($40.00 @ 140 Watt) and changed it from

Bill K7NOM

So are solid gold toilet seats, and they're a lot more worthwhile than a lot of very expensive "audiophile" gear. The day of the snake-oil salesman is far from gone!

I know that I should let this go but, what the hell:

I never stated that this was an ideal or efficient solution but, instead, a solution that was available 'off the shelf.' I do know that devices from both the cited sources will output AC power at selectable frequencies.

Your pique is your own problem as are the issues you think you are addressing.

Kal

Sorry to barge in but Walter cracked me up :)

I brought a bunch of hifi stuff over from the UK a good few years ago, and it is completely blind to the fact that I am feeding it 60Hz. It hasn't exploded at least.

Point is - do you *really* need 50 Hz instead of 60 Hz? Most kit just doesn't care. My shaver runs a little faster but that's about it.

Silver

comparable?

That's what we think happens. So if we could convince it to do 50 Hz, we wouldn't need to, ifyaknowwhatImean.

-John O

We don't know, but chances are it will work just fine. But, when the device gets to its final destination and is plugged in to 50 Hz...that's not the time to find out.

-John O