Peter Davey Heater

[storre]

@ NerzhDishual:
Yes off topic but thanks It's me playing sax, flute, didgeridoo and akai-ewi and clarinet. It was done in my studio but is not the final mix. Just some fun we have when we are not making fe machines They are all just improvs so what comes out comes out and we try not to mess with it too much afterwords. If you know about ayahuasca, that is the real name of the didgeridoo song that is a bit crazy and long

[forest]

I have found something which may be really usefull - egg shaped device for making tea. Something like this : http://www.naherbatke.pl/product.php?id=2503&categorie=119 but mine is a cheaper one, SS inox type, cheaper probably becouse of thinner walls.

[Paul-R]

I have found something which may be really usefull - egg shaped device for making tea. Something like this : http://www.naherbatke.pl/product.php?id=2503&categorie=119 but mine is a cheaper one, SS inox type, cheaper probably becouse of thinner walls.

I am working on soup ladles from cheap kitchen shops.
Don't forget that if they sound off just over G sharp (depnding on your country and AC),
then you will have to grind off a heck of a lot of metal to get down to the next G sharp (approx).
I have invested in a set of pitch pipes from a music shop. They give G, if not G sharp. People in
the shop will think you're daft, but uit saves a lot of grinding.
Paul.

[forest]

I am working on soup ladles from cheap kitchen shops.
Don't forget that if they sound off just over G sharp (depnding on your country and AC),
then you will have to grind off a heck of a lot of metal to get down to the next G sharp (approx).
I have invested in a set of pitch pipes from a music shop. They give G, if not G sharp. People in
the shop will think you're daft, but uit saves a lot of grinding.
Paul.

Thanks,but I only want it to be my casing. Inside I'd like to place a small bike bell.
I'm not sure if that resonance means the correct frequency match with mains or rather just a resonant cavity. I think rather about the last.I've found a patent describing generating very high pressure waves in single focal point using transducer with a shell concentrating sound waves in small point.It is stated that standing waves are produced.Unfortunately sound is generated by pulses of high energy HV from capacitor which seems to shake inner plate of transducer.I cannot imaging how it may happen with mains.Maybe there is a kind of spark gap inside water between each belles with some sharp edge which generates mechanical punches ?

[forest]

I've tested my device. No spectacular results. However two things are worth to note:
- current dropped during testing from 1.9 A to 1.1A continuously
- all my non SS connectors,nuts were corroded or rathe covered with kind of patina
- I saw a small bubbles coming out of my device near the connect point where the bells are very near each other, probably it's irrelevant but they occured at once when I switched power on