Figure 16 Long Tail Pair With Cathode Resistor. The hot input terminal goes through a 0.1 u f capacitor to the grid of a triode. The grid also connects to a 100 k ohm resistor. The other end of the resistor connects to a point labeled capitol e small cc. The grid goes to the grid of the second triode through a 1 meg ohm resistor. The grid of the second triode goes to ground through a 0.1 u f capacitor. The cathodes of the two triodes are tied together and go to ground through a resistor labeled capitol r small k. The plate of the first triode goes to one end of a resistor labeled capitol R small b 1. The plate of the second triode goes to a resistor labeled capitol r small b 2. The other ends of both resistors go to a point labeled capitol e small bb. The plate of the first triode goes through a 0.1 u f capacitor to output 1. The plate of the second triode goes through a 0.1 u f capacitor to output 2. There are 100 k ohm resistors connected from each output to ground. This completes the description of figure 16.
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