UFO Coil

[Silver Dollar]

I just got back from some yard sales and got all this for $3!



The two retractable ice scrapers will make perfect MD poles.
They have heavy duty clamps on them too! $1 for both!

The blue pipe is preformed for PI coils. My own pipes came out
a bit kinked. $1

And the air filter unit gave me this 13.5" UFO style coil housing!









Not a bad haul for $3!

[Silver Dollar]

I wound up a TX coil for the UFO. It's 80 turns of .5 mm wire and 13" in diameter!

[Silver Dollar]

I fitted the TX into the case;


And closed it up to let the polyurethane dry in place;


And wound up a 112 Turn RX at 7.25" with a 20 to 22 turn Buck on top.


I have to let the Poly dry to mount it up. I'm still wondering if it will be too heavy...

[Silver Dollar]

I cut slots and installed the coils today;


Then epoxied them in place leaving the outside of the RX unglued
to allow tuning the buck;

[Silver Dollar]

So I tried to null the UFO coil today. I was able to get a 14" air test! That's the most I
have ever seen! I did have trouble with routing the ground side of the buck. If it cuts
across the middle I get no detection! If I route it too close to TX or RX I get lots of
chatters. And I also forgot to spray the shielding paint oops!

[walkman]

Nice works thanks