NiZn Ferrite Rod R40C1- 200x10mm for High Q Amateur & Crystal Radio Coils, AM SW

Description

We are a great source for many of your litz wire and crystal radio part needs. Since 2008, we've sold more than 10,000 orders with excellent customer feedback. Please visit our eBay Store at
mkmak222_Litz Wire
to see what is currently available.
We have over a hundred types of litz wire in stock. They contain 5 to 1650 strands of AWG 48 to 28 (0.03 mm to 0.31 mm) wire. The litz wire's equivalent AWG are from 24 to 6.
Most orders will be shipped within one day.
Small amounts of wire will be coiled on 6” or 7” diameter paper spool to prevent the destruction of the litz wire structure. Larger amounts will be coiled on the original plastic spool.
If you don’t see a particular type of litz wire that you're interested in, please contact us so that we can help arrange a custom order. We can usually have these delivered in three weeks. Large orders may be purchased at the wholesale price.
Here you are bidding on a
special
nickel-zinc ferrite rod. The size is 200 X 10 mm, use Ni-Zn R40C1 material. Made in China.
The
Products made by
Ni-Zn R40C1 material are design to use for
MW and shortwave
antenna coils
; in high frequency applications they have low loss characteristics.
The second photo above shows the characteristics of this R40C1 ferrite
material
. Its applied frequency is up to 50 MHz.
The R40C1
Ferrite rod
made by special formula.
We don’t know why this type of Ferrite rod has very high Q when wind the coils for LW, MW and SW. Even though the material R40C is very close to R40C1, the Q is much lower with the same coil spec (usually not easy to reach 700Q in MW). I introduce the R40C1 here because the Crystal Radio enthusiast always wants to make coils that have high Q and want them as high as possible. The coils I wound with R40C1, are able to get 900 Q at 3 MHz, I did not measure higher than 3 MHz yet.
For sure the R40C1 can use for many other applications. This field is waiting for discover by amateurs.
Use this R40C1 200 X 10 mm ferrite rod and litz wire to make coils will give you a big surprise! It can get very high Q value and let the radio circuits
significantly
increase the selectivity
and sensitivity.
The third photo
above
shows some test results for litz wire coils with this
200
X 10 mm
ferrite
rod
. These coils in 500 – 1600 KHz can read more than 1000 Q from a HP 4342A Q meter, the highest point at 700 KHz is 1237 Q.
An amateur test these ferrite rod, 122 turns of 420/46 Litz, close wound on 200 mm ferrite rod. Coil length 6", 4.5" leads, 2.5" above deck. L=216 μH. The result are: 500 KHz - 1293 Q, 800 KHz - 1383 Q, 1900 KHz - 1124 Q.
The fourth photo
above
shows
another test results, 12 turns of 1 mm
silver-plated
copper wire
, space wound on a plastic tube and insert the 200 mm ferrite rod, get 630 Q at 7 MHz, 470 Q at 14 MHz.
For more information of this R40C1 ferrite Rod and ferrite toroid, please search "
The RadioBoard Forums
" on google and read all interesting articles of “
R40C1
” in
Crystal Radios section.
If you need 175/46, 250/46, 270/46, 300/48, 420/48 or 675/48 litz wire to make coils for this ferrite toroid, please visit my eBay store
mkmak222_Litz Wire
to search these litz wire.
Please e-mail any questions you may have before you order.
Please make payment arrangements within 3 days. I accept PayPal only.
Payment is expected within 10 days when place an order, or item will be released for sale.