Dear Mal, LF
Group,
No ? it is possible
to design these transformers with a small air gap, but there does not appear
to be a great advantage to doing so because the required number of turns
increases, increasing the ?copper? losses and offsetting any reduction in core
loss. There is always a quite large gap in the original LOPT ? often this is
produced by inserting plastic film spacers between the core halves. These, and
any glue, should be removed so that the core halves fit together perfectly.
Sometimes the gap is produced by machining the core legs to unequal lengths,
in which case you can?t really use the core in this
application.
Cheers, Jim
Moritz
73 de
M0BMU
-----Original
Message-----
From:
[email protected] [mailto:[email protected]]
On Behalf Of hamilton
mal
Sent: 31 March 2005
13:36
To:
[email protected]
Subject: LF: TX Cores
Jim ur mod to the G0MRF using a TV
line output transformer. Did u leave a gap between the cores or not
?
