Hsu,
That formula is for 60 Hz, I forgot to add that. The
difference between 50 Hz and 60 Hz transformer size is
a factor of 1.2. A 50 Hz transformers core will be 1.2
times larger than a 60 Hz for an equivelant power output.
Best,
Will
--- In ham_amplifiers@..., "craxd" <craxd1@...> wrote:
Hsu,
There's a short formula one can use to estimate the power by the
core
area providing they have the wire sized right. You use the core
area
(a) in square inches. A hint to make it easy to measure is the
outside leg of a transformer is most always 1/2 as wide as the core
width. So multiply the leg width by 2 to find the core width. Next,
multiply that by the irons stack thickness and that will give the
area. The formula works with 12 kilogauss. If they're running it
higher, the core could be smaller for the same power rating. You'll
have to convert centimeters into inches as the formula is for
square
inches. Theres 2.54 centimeters in a lineal inch. To convert into
square centimeters, multiply square inches by 6.45.
a = (leg width in inches x 2) x cores stack thickness in inches
P = ( a / 0.1725 )^2
This will get you close.
Best,
Will
--- In ham_amplifiers@..., "Hsu" <Jbenson@> wrote:
Thanks,Will
Could tell me the power rating of TL922 HV transformer?
Thanks again!
73! Hsu
----- Original Message -----
