Induction question for Reg,

[Frank-S]

Reg, I purshed a SM pro pi kit on Ebay The coil is 300uh my meter
dont have uh, only mh reading.will you convert 300uh to mh
for me.Thanks
Frank-S

 

[Reg]

Hi Frank,

1000 uh is 1mh. So, to make a coil 300uh, you would wind a coil that measured .300 mh.

Reg

 

[Frank-S]

Reg, Thanks .300mh is much lower than the TDI i had.the duel field coil was about .40 mh or .400
if i rember right.I was not sure it looked low to me. At .300mh it might be good on small gold.
Thanks again Frank.

 

[metalpopper]

Hi Frank,

1000 uh is 1mh. So, to make a coil 300uh, you would wind a coil that measured .300 mh.

Reg

***************************

Reg....as you stated initially, 1000 micro-henries equals, 1 milli-henry.

Figuratively;..... 1000 E -- 06 is the same as 1 E -- 03.

By that definition you will realise that 300 E -- 06 Henry is the same as 0,3 E -- 03 Henry

So a 300 uH coil will display as..... a 0.3 mH coil. on your meter's milli-henry range, if its capable of

indicating that small a value?

(p.s. the two small dashes are supposed to represent a single minus sign)

Hope that correction helps......Matt.

 

[Frank-S]

Thanks Matt.
.300 worked OK. I not trained on hi-tech electronics i am
only using a induction meter to make coils.Working on a VLF
coil,12'' troy X5 coil now.
Do you know how to fin-tune a Bucking coil.
Frank