Charles, I don't have a direct answer to your question but do have some
information that might help.
All of the big Ameritron amplifiers use the same Dahl style plate
transformer. These transformers have dual 120vac primary windings. They can be
connected in parallel for 120v or in series for 240v operation.
When connected in series, a virtual center tap is present that can be wired
to derive 120vac for the filament transformer or blower if needed.
73,
Gerald K5GW
In a message dated 10/14/2013 10:31:06 A.M. Pacific Daylight Time,
k4vud@hotmail.com writes:
I am still asking............
1. The AC supply on the wall socket is two-pin with one side hot and the
other side NEUTRAL, not ground. There is no ground.
2. Which of the two pins is hot? That is not known.
3. Voltage is 220VAC measured from one pin to the other.
Then
4. Question.... given the info from Lou et al, what are the
consequences, if any, to plugging these Ameritron amps into this kind of
AC supply ?? That is with the two-pin plug turned EITHER WAY upon
insertion.
Please try again for me and my Thailand friend with a blown rig. tnx 73
Charles Harpole
k4vud@hotmail.com
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