balun question

[Glen Zook]

The Heathkit B-1 balun was rated at 200 watts AM which
is equivalent to 800 watts peak power.  Since this is
conservative, I would think that they would take at
least 1 KW of SSB or CW.

I haven't used my B-1 for a long time.  But, I could
make up a folded dipole and try it sometime.

The most probable thing that would happen is that you
might "arc over" under load.  Remember, the B-1 was
designed to take 300 ohm loads to 75 ohm.  They were
used back in the late 1950s and early 1960s on
antennas like folded dipoles (300 ohm feed) to match
into the narrower pi-networks that were just coming
out (like 50 -75 ohms instead of the old 20 - 600 or
20 - 1000 ohm networks).

Glen, K9STH


--- rayfri <rayfri at NETWORLD.COM> wrote:

what determines how much power a balun coil can handle
and what might happen if that power level is
exceeded???

I have a Heathkit B-1 balun, which we heath lovers
know uses air wound coils.  The B-1 is rated by Heath
at about 200 watts power handling capability...

what might happen if I were to put 500 or 600 watts
into it?

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