TABLE XI 

 PARTS REQUIRED FOR A CALIBRATION UNIT FOR CALIBRATION OF A TAPE 

 RECORDER WITH A STRIP-Clia,RT RECORDER 



1. Power Supply Output, 18 volts d.c. at 50 milliamperes 1 ea. 

 input 115 volts, 60 cycle, Acopian Technical Company, 



927 Spruce Street, Easton, Pennsylvania, Model H 18A05, 

 or equal. 



2. Potentiometer 1,500 Ohms, 4 watt, Mallory M1.5MPK, or equal. 1 ea. 



3. Switch DPDT, Arrow Hart 5 Hegeman #20905 FR, or equal 1 ea. 



4. Female receptacle, Amphenol #80-PC2F, or equal 2 ea. 



5. Chassis aluminum, 4" x 6" x 3" Bud AC-430, or equal 1 ea. 



6. Line cord, Belden, 17408S, or equal 1 ea. 



7. Knob Nation Co. HR, or equal 1 ea. 



8. Switch SPST, A-H ^ H #20994LH, or equal 1 ea. 



9. Rubber grommet for line cord 1 ea. 



96 



