[AMPS] High Potential Tester (high-pot) Components
Ian White, G3SEK
G3SEK@ifwtech.demon.co.uk
Mon, 19 Jan 1998 09:26:57 +0000
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
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm