3pcs Variable Inductor RF Coil 306uH - 680uH Litz Wire Ham Radio Hobby (= Toko)

Description

Unused Shielded Variable Coil, having a code #116.
The price is
for three coils (3 pcs).
It's easy to take off a coil winding for re-winding it up again according to your needs.
Dimensions (the picture has been taken from the coil #101):
Photo showing the coil with both shielding and winding removed:
#116 coil windings:
L
43
... 195 turns (an inductance can be adjusted by the screw ferrite core in the range of 306 μH till 680 μH)
L
21
... 2 turns
Both the windings L
43
and L
21
have been wound by the copper litz wire (3 thin insulated wires parallely) to improve a Q-factor.
This coil is great for tuning to 455 kHz with about a 220 pF capacitor in parallel with the main winding.
How to determine number of the winding turns if you know the wanted inductance:
You can buy these coils with different inductances from me:
#101:    45 μH - 100 μH
#103:    45 μH - 100 μH
#116:  306 μH - 680 μH
#207:    1.7 μH - 3.7 μH
#207A: 1.7 μH - 3.7 μH
#301:  101 μH - 225 μH
Photo showing different coils you can buy from me (not all included in this auction):
Why
people
buy from me?
I am a small seller. I care about every single customer and people appreciate that – see my feedback.
You will get your items fast and I guarantee your satisfaction. Even if that means refunding your money to you in full or sending you new items for free.
I ship items by a priority airmail. Typical delivery times are: Europe (All countries) 3 – 10 days. All other destinations (North and South America, Asia, Africa, etc.) 3 – 4 weeks. For some destinations which are very far from Europe shipping may take a couple of days more. These destinations include countries like New Zealand, Hong Kong, Korea, Japan, etc.
Please do visit also my eBay store
elebcz
to see the other items you could be interested in.