[BC] Determining a coil

[Tom Spencer]

Well, you know "C" within 20%, maybe...

Use several caps and average the readings?

RichardBJohnson at comcast.net wrote:
> Use a L/C meter. If you don't have one, you can "make" one using a signal generator, a scope and a few capacitors you might have hanging around.
>
> You connect a capacitor across the coil and find the frequency, using the signal generator and a scope, that the circuit resonates. In the 'olden days we had "grid dippers" to find resonance. Then, from the formula we were all required to remember --even to get the FCC 2nd class ticket, F = 1 /( 2 * PI * sqrt(L * C)), you find the value of L because you know C and F.
>   

-- 
Tom Spencer
PG-18-25453 (nee' P1-18-48841)
http://radioxtz.com/