Topband: Balun for RX antenna

[w0hh]

A short time back, someone described a small delta loop for 160m 
receive. I think it was a modification of the one in "Low Band DXing". 
My question is where to buy the balun that matches 950 Ohms to 50 Ohms? 
I probably could get the resistor at Radio Shack, but is there a certain 
resistor that is preferred for this antenna. I still have my W1FB 
160/80m 40db preamp. Any info is greatly appreciated.

73, Tom W0HH


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