Course home page
See also Daily Schedule-Term 4
Tuesday, March 24 — Skip to p. 59 and as the homework before class, build the two circuits on that page — We carefully studied the first three pages of a book section on Bipolar Junction Transistors — Our goal was to understand (a) the depletion region (reverse bias) at the base(p)-collector(n) junction, (b) the forward bias at the emitter(n)-base(p) junction, (c) and most importantly, the explanation of the multiplier effect wherein only a small fraction of the electrons going into the emitter join with holes in the base, or come out the base lead (most go across and are swept into the collector) — Then we built the one-transistor amplifier on p. 61
Homework for Friday, March 27 — Build your second one-transistor amplifier on p. 62
Plans for class on Friday, March 27 — We will try to understand how the multiplier effect in our one-transistor circuits work — We will understand the capacitor/resistor combinations that alter tone — We will build the two-transistor amplifier on p. 63