SE to Balanced line buffer

[vanofmonks]

Hi, I have a quad set from the store consisting if a pair of lsk170 and a pair of lsj74. I also have 12 extra j113s with bias resistors from the 6-24 crossover. Is there an SE to Balanced circuit that could utilize those devices that would be effective in driving a long 15-20' interconnect to a balanced pre? Or would it be more effective to use an edcor or cinemag transformer? I'm hoping to avoid having to get transformers. I have both +dc and +- dc supplies available.

 

[ranshdow]

Well, the basic transformer based unbal concept is thus. Does it need a buffer to drive it? idk.

 

[vanofmonks]

I found that I have a pair of edcor 10K:600 line transformers. I'm wondering if the F5M or BA-3 front end circuit connected to the primary of the 10k:600 instead of to the output transformers. Gain adjusted to get unity on output and would gain galvanic isolation for the long run also.

 

[Zen Mod]

much better to get Edcor 600:600 and put buffer in front of it, if needed