>> The transformers I picked up are 110 volt primary,
3100 volt secondary,
>> 1.7 KVA, weighing in at 85 lbs. each. I figured I could
wire the primaries
>> in series, and the secondaries in parallel if I wanted to
feed them with 240
>> volt, but then again that would be 170 lbs. just for the
transformers.
>> I measured the secondary resistance at 214 ohms. It
made no difference
>> whether the primary was shorted or not. I don't know if
it's of any use, but
>> the primary resistance was 0.1 ohms.
>>
>> Your comments are appreciated. Thanks in advance.
>> Jim Smith, KQ6UV
>>
>> --
>>
>Jim, I just did some rough calculations and with the
secondaries in
>parallel. You would have a 'no load voltage' of 4350 volts.
With 3KW
>input into your amp that would be .70 amp. the power supply
voltage
>would droop to 3600 volts (abt 750 volt drop)
>
>This is not very good regulation. Good transformer have a
secondary
>resistance of 10 - 20 ohm and give 5 % regulation.
>
>Denis VE6AQ
The drop in peak voltage arises from dissipation in the
winding resistance. With cap. input they will fry for sure.
Steve
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