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  1. sundin13

    SCR Question

    Hey I'm a  ;Dtech student in need of some help. A 34V dc supply is applied to an SCR in series with a resistor, R.  When the SCR is turned on, its Ih= 6mA, and V a-k= 0.7 V.  What is the minimum value of R before the SCR can turn off? Rmin=_______ohms  rounded to the nearest hole number. Do I...
  2. sundin13

    Help On Another Transistor Question

    Well it didn't take me long to get stumped again.  The only formulas I have for ICQ & VCEQ need a VBB.  With this circuit there is no VBB, am I right?  Any help would be great.  We're not using any curve charts or data sheets, just formulas, which are not in my text book.  Q is queiscent...
  3. sundin13

    Transistor ?

    This is my first post here so go easy on me.  I'm a electrical tech student who is just starting out.  I'm stumped on this question... For the circuit shown, Vcc = 14 V, BetaDC = 162, and Rc = 543 Ohms a)  Vce (in Volts) when Vin = 0 V b) the min value of Ib (in uA) required to saturate the...
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