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Author Topic: Can someone identify this thing?  (Read 17946 times)

3decimal14

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Can someone identify this thing?
« on: October 11, 2009, 07:03:38 PM »
Please help me identify what this is in the picture.


/Tommy

HeairBear

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Re: Can someone identify this thing?
« Reply #1 on: October 11, 2009, 07:26:45 PM »
looks like a radio...

onthecuttingedge2005

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Re: Can someone identify this thing?
« Reply #2 on: October 11, 2009, 07:59:07 PM »
Please help me identify what this is in the picture.


/Tommy

It looks like the section of an AM radio, that looks like an AM antenna with the ferrite rod and windings on it. the small box looks like the tuner.

mscoffman

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Re: Can someone identify this thing?
« Reply #3 on: October 11, 2009, 08:08:43 PM »

Yep, I agree with the above....But by modifying an AM tuner slightly
you could do all sorts of things with it, some nefarious, some not.
The box looks like a standard variable capacitor (built out compressible
plastic film strips).

:S:MarkCoffman

3decimal14

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Re: Can someone identify this thing?
« Reply #4 on: October 12, 2009, 07:08:16 AM »
Ok, thank you for your quick response!

I am not shure if i put this in the right forum but i do think this i connected somehow to the TPU or Leedskalnins flywheel. My research have let me to think that Ed's flywheel works like the TPU.

As in the picture we can se that the ferrite is moved (to the right) and i think another magnet is inserted at the ferrits left end. What could this be for?

/Tommy

giantkiller

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Re: Can someone identify this thing?
« Reply #5 on: October 12, 2009, 08:13:48 PM »
A bias field.

Ok, thank you for your quick response!

I am not shure if i put this in the right forum but i do think this i connected somehow to the TPU or Leedskalnins flywheel. My research have let me to think that Ed's flywheel works like the TPU.

As in the picture we can se that the ferrite is moved (to the right) and i think another magnet is inserted at the ferrits left end. What could this be for?

/Tommy

Yucca

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Re: Can someone identify this thing?
« Reply #6 on: October 12, 2009, 11:20:10 PM »
hi 3.14, where did the photo come from?

the_big_m_in_ok

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Re: Can someone identify this thing?
« Reply #7 on: October 13, 2009, 02:33:33 AM »
looks like a radio...
Yeah, I'd say so, too.  Single sided printed circuit board(?) that might be part of an AM/FM radio.  Covered in dust.

Yucca said:
Quote
...where did the photo come from?
I agree.  Was there something you wanted to do with it?  The ferrite coil might be useful if it's continuity was complete.

--Lee

szaxx

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Re: Can someone identify this thing?
« Reply #8 on: October 13, 2009, 01:49:19 PM »
Hi
Id agree that this is an old AM FM radio board and it looks like the long wave portion of the ferrite rod is missing. The clear bit in the piccy is a poly-varicon or tuner. There may be off the piccy a couple of small transformers probably green and red tape on them. These were very common in the seventies  (the pocket tranny) today that saying has a very different meaning. I occasionally had these devices come into the repair bay (sentimental reasons) they can be tuned up a little and the vhf part was easily converted to receive aircraft band at that time (UK).

Thanks Steve.

BEP

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Re: Can someone identify this thing?
« Reply #9 on: October 13, 2009, 07:02:48 PM »
Ceramic magnets were sometimes added to increase the Q of air or ferrous cored coils. I've only seen this done on filter chokes. Don't recall seeing done for frequencies above ultrasonic. 

mscoffman

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Re: Can someone identify this thing?
« Reply #10 on: October 13, 2009, 08:49:20 PM »

This looks like something someone who is technical and knows
radio electronics but does not know how control electronics would
be designed. Like the function of magnetic hall effect sensors.

If that added section is just ferrous metal then that ferrous
segment might conduct magnetic field from the magnets rotating
on the wheel - saturating the antenna loop, Quite-ing an
AM radio station. It would pay to look at the audio ouput
section of the radio and to see what it's connected to.
You may want to connect an earphone or speaker there and
see what you hear. Is it a varying tone or AM radio station
or 2.5Mhz WWV. maybe below 530Khz in the LF band with
it's lightning induced static. It may have been built either as
just a magnetic position sensor like a magnetic metal
detector or a remote syncronizer or speed control of
some kind.  The above high level functions are very truely
just guesses.

It looks like an AM tuner because I think FM radio would
have much smaller capacitors (1-2pf) and much smaller
hairpin like coils. It's does not look busy enough for AM/FM
radio frankly.
 

:S:MarkSCoffman

Tito L. Oracion

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Re: Can someone identify this thing?
« Reply #11 on: October 14, 2009, 12:27:43 AM »
Ok, thank you for your quick response!

I am not shure if i put this in the right forum but i do think this i connected somehow to the TPU or Leedskalnins flywheel. My research have let me to think that Ed's flywheel works like the TPU.

As in the picture we can se that the ferrite is moved (to the right) and i think another magnet is inserted at the ferrits left end. What could this be for?

/Tommy

NO !  ;D

 THE TPU WORKS LIKE RADIO !  ;D

THAT'S WHY IT NEEDS SPEAKER WIRE AND SOME TUNING OK  ;D

THAT'S IT

3decimal14

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Re: Can someone identify this thing?
« Reply #12 on: October 14, 2009, 07:34:04 PM »
Its from a website (older version) that is about Coral Castle.
http://www.coralcastlecode.com/

hi 3.14, where did the photo come from?

Yucca

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Re: Can someone identify this thing?
« Reply #13 on: October 14, 2009, 10:58:27 PM »
OK thanks. Yes its definitely a transistor radio board with the ferrite antenna rod end interacting with probably a PM. I can't work out how the magnet could spin on the alu wheel without crashing into the rod. perhaps the radio was rigged to emit a tone proportional to gauss in the rod (a make shift audio gauss meter) then the rig was span up (with modified radio attached) whilst listening for a change in the tone or something, just a guess.

3decimal14

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Re: Can someone identify this thing?
« Reply #14 on: October 17, 2009, 02:40:12 PM »
I beleive the flywheel was not designed to actually spinn around, the magnetic flux was.
/Tommy

OK thanks. Yes its definitely a transistor radio board with the ferrite antenna rod end interacting with probably a PM. I can't work out how the magnet could spin on the alu wheel without crashing into the rod. perhaps the radio was rigged to emit a tone proportional to gauss in the rod (a make shift audio gauss meter) then the rig was span up (with modified radio attached) whilst listening for a change in the tone or something, just a guess.