Need oscillator circuit diagram

[magnetman12003]

Hi,

Can anyone provide me a "PROVEN" circuit diagram so I can construct a 6o hz or 100 hz 10 inch diameter air loop oscillator.

The circuit must be powered by a 19 volt DC source. It must use one 2n3055 transistor. Both loop coils must measure 10 inches - inside diameter. The windings of the coil wires must be #20 AWG and #24 AWG magnet wire. I need the total winding turns (or feet of wire) I must use for each loop. Along wirh whatever diodes, resistors, and capacitors that are needed to construct.

Given all the above information I am open for all electrical schematics that I can use to construct the oscillator. The one I have presently constructed oscillates at to high a frequency. All help will be most appreciated.

I am not to good with electronic theory application but can readily build any circuit following an electrical schematic.

 

[Nigel Goodwin]

Sounds a very obscure requirement?, but all I can suggest is that you will need a LOT of wire, an air cored coil for such a low frequency isn't going to be small!.

 

[mvs sarma]

Is it a college project under prescription by the lecturers? I fear, as Nigel has already indicated, it will be huge in size and likely makes a big hole in the pocket of students who try to realize it.
Otherwise, it is a need to have 60 to 100Hz oscillator. there are other ways of doing it. for example, RC phase shift oscillator could be tried.

 

[magnetman12003]

Need oscillator schematic

Hi All,

Go to go to GOOGLE and type in the word "TRACMAG"

This will bring up a Google page directing you to tracmag video #4 on U tube.

The fellow who is constructing these units is going to sell them for $150. He is in the production stages right now.

He has made 8 tracmag videos. Look at them all. Especially #8 where he is spinning a 3 inch diameter 1 inch thick disk neodium magnet at 6,000 rpm.

In the meantime I would like to replicate the tracmag power oscillator not illustrated that can spin disk magnets at a distance like he has shown.

To those deep into electronics what simple circuit might be used thats powerfull enough to do what he has shown. A large air core loop must have been used.

If someone figures this out please get back with me.

Thanks, Tom

 

[ronsimpson]

That’s interesting.

I have two machines that wind that type of coil. The maximum size is 3 feet. The minimum size is 3 inches. I have other coil winders for the small coils. The largest we made is 8 feet.

With the price of copper today the coils will not be cheep. Years ago I had a worker winding coils all day long. The machines are retired now but I could drag them back out if there is a demand.