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Microlab Model SR series of Line Stretchers or Phase Shifters is designed to adjust the electrical separation between components without introducing additional mismatch using a special telescoping section which maintains constant impedance throughout the travel length.
Beryllium copper contacts assure long life and noise free operation.Mechanical end stops at each end of the travel prevent accidental disassembly, and locking caps allow adjustment of sliding tension and provide final adjustment locking.
Trombone style Line Stretchers with fixed position connectors, providing twice the adjustment range, are to be found on ST series data sheet.
Units are available with standard N (or SMA connectors to special order) and options for different polarity or alternate connectors are available on request.