25) If Vcc=9V in 555 cct. then O Vth= 6.2v , Vtl= 3.66V
Chapter25: Television, Telephone, And Low-voltage Signal Systems
Section25.2: Telephone System
Problem 2R: At what height are the telephone outlets in this residence mounted? Give measurement to center....
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Transcribed Image Text:25) If Vcc=9V in 555 cct. then
O Vth= 6.2V , Vtl= 3.66V
Vth= 6V , Vtl= 3V
O Vth= 6.33V , Vtl= 3.33V
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