Rich Measures wrote:
>>Hmmmm... I measure 12.7 ohms across the primary. A true center tap
>>should be 9 ohms. Maybe something is wrong with mine.
>Due to the current requirement difference, the two windings probably have
>unequal resistances.
Although a dual primary has the same number of turns on each winding,
you can expect slightly different resistances (maybe up to about 10%)
because the winding on the outside needs a longer length of wire for
each turn.
73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.demon.co.uk/g3sek
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