This figure shows tubes with resistors and capacitors connected. There are no values given on the resistors and capacitors. The diagram is to show topology only. The figure has two parts, 1 eh, and 1 B. Figure 1 eh has two triodes. The input terminal is connected to the grid of the first triode. The grid also connects through a resistor to the bottom line which is also ground. The cathode goes through a resistor then another resistor to ground. The resistor which is closest to the cathode has a capacitor connected in parallel with it. There is a connection point at the junction of the two resistors which is labeled feedback. The plate of the first triode connects through a resistor to the top line. This line also connects to B plus. The plate of the first triode also connects to the grid of the second triode. The cathode of the second triode connects through a resistor to ground. The plate of the second triode connects through another resistor to B plus. The plate of this triode also connects through a capacitor to output 1. The cathode of this same triode also connects through a capacitor to output 2. This completes the description of figure 1 eh. Figure 1B is drawn in a manner similar to figure 1 eh. It has 3 triodes. It begins the same way. The input terminal is connected to the grid of the first triode. The grid also connects through a resistor to the bottom line which is also ground. The cathode goes through a resistor then another resistor to ground. The resistor which is closest to the cathode has a capacitor connected in parallel with it. There is a connection point at the junction of the two resistors which is labeled feedback. The plate of the first triode connects through a resistor to the top line. This line also connects to B plus. The plate of the first triode also connects to the grid of the second triode. The cathodes of the second and third triodes are tied together and go through a resistor to ground. The grid of the second triode connects through a resistor to the grid of the third triode. The grid of the third triode connects through a capacitor to ground. The plate of the second triode connects through a resistor to B plus. The plate of the third triode connects through another resistor to B plus. The plate of the second triode connects through a capacitor to output 1. The plate of the third triode connects through a capacitor to output 2. This completes the description of figure 1 B. This completes the description of figure 1. Click the link to go back to where you were.
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