Hi flatulent,
I have a couple of schematics, but they use the center tapped 600:600 ohm transformer. If its not a problem could you send me an electrical schematic of the 2 to 4 wire converter which uses operational amplifiers? And also how does the version of the 2 to 4 wire converter with operational amplifiers actually work?
Regards.
The internal resistor 620 ohm, so the transformer should be 1:1 for best hybrid opperation. 741 should work.but what's the value of the transformer and the amplifier is 741?
Really no clue? The specification seems self-explanatory in my view. Of course it doesn't fix all transformer parameters. But specifying just the windings ratio is quite common for audio transformers. 600 ohm:600 ohm would be another popular specification.what do u mean by 1:1
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