user TURBO?s replication of Steven Mark?s TPU ?

[hartiberlin]

@Dave,
nice new big TPU.

If you still have your other two TPUs, please try to put a  0.1 to 0.47 mikroFarad cap across the collector coil in parallel and let me know, if you then still get this DC spike or if you then get better resonance and higher output. Many thanks.
P.S. Don?t use elko, but foil caps only with high voltage rating !

[virus]

@Mramos,

I dito hartiberlin request Post ? Reply #540 on: ?, and I mentioned in some other post previously, we need to limit variables, what we can standardize on is the function generator.

Because there are so many different coil configuration and wire configuration and connections, WE NEED A RELIABLE AND STEADY GENERATOR. It will just cut down on development time of the TPU.  I truly believe it is the better way.

I was planning on doing the 3 x 555 ic circuit with IRF540ââ,¬â,,¢s, (posted by alex) (will still do it if some thing better doesnââ,¬â,,¢t show) but if you and some of the know how Guys on the form, are willing, to do all the hard work in developing a Pic version that can be driven from a PC/laptop ( and or even free standing) and give feed back to example into an XLS sheet. RS232, USB, parallel what ever as long as it is reliable and consistent. It will not be cheap, but it will be worth the effort, every cent just on time saved removing a lot of doubt and frustration.

It will eliminate one of the flexibilities/variables that could drag out this project and cause a lot of duplicate work. One request please keep it user friendly (simple with enough info for us newbieââ,¬â,,¢s). 

May be on another post where the know whoââ,¬â,,¢s can work un-disturbed and give us a stable product, I will help build and fault find if it need be.

(You guys can later label it and sell it as a kit or something)

Virus

[JohnMalkovich]

Hi guys I think this might help everyone:

I found a program which creates exactly 3 frequencies it's called Frequency Generator 2.6.
It's free to use for 14 days. You can download it at:

http://www.softpile.com/Education/Mathematics/Review_21743_index.html

I was playing with frequencies and found two settings to produce some very interesting results.
I've uploaded the files (MIGHT NEED TO CHANGE THE FILE TYPE FROM ".txt" to ".dat")
so all you need to do is open the file with Frequency Generator to see result. Two settings really
stood out:

"InterestingFrequency2.dat" Sound Magnifies -> Dissipates -> Magnifies again

"InterestingFrequency9.dat" Sound seems to Intensify dramatically with time!

I don't know which file (configuration) it was, but I had left it on for a while accidentally and it started
producing cracking noises.(?)

One configuration made my sub woofer continually suck in air instead of sucking it in and then pushing it out as
it is usually.

Play with it and post your observations on this and anything you might come up with.

[pese]

Hi guys I think this might help everyone:

I found a program which creates exactly 3 frequencies it's called Frequency Generator 2.6.

Offer say :
Frequency Generator contains 3 Generators, you can choose between
Sine, Square, Triangle, SawtoothNeg, SawtoothPos, Pink Noise

It this shure that it give 3 outputs to drive separatly 3 different frequencies ?
If dosn?t  it isn?t to use
Pese

[AhuraMazda]

Dave,
Ok I am now baffled. Referring to the images you sent and you reply, each coil set seems around 20mm in diameter. If you are using a single wire as the collector, it must be a very thick guage or, are you using a single wire made into a loop/torroid to give it thickness?

These questions may be leading somewhere!

Regards

AM