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    Building, troubleshooting and testing of these amplifiers should only be
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Line output transformer question

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I am building a tube mic preamp with a 12au7 SRPP output. I am planning to use a 1:1 turn ratio line out transformer. I feel that I should get one with 10K:10K impedence ratio, but will a 600:600 also OK for this application?

How is the impedence of a transformer determined? Thought it is determined by the actual load impedence, right?
 
pftrvlr said:
I am building a tube mic preamp with a 12au7 SRPP output. I am planning to use a 1:1 turn ratio line out transformer. I feel that I should get one with 10K:10K impedance ratio, but will a 600:600 also OK for this application?

How is the impedance of a transformer determined? Thought it is determined by the actual load impedance, right?

they are not the same, the 10k line traffo will handle substantialy more voltage than a 600 ohm one...ohm's law is right at work here..

while the two will have the same turns ratio, the 10k one will have about 4 more turns than the one turn of the 600ohm ones...
 
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