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Technique Figure 72. A1 DC Stabilizes AF by Forcing the Offset Pins to Produce a 0V Difference at A2's Inputs +15V 270k 8 A2 LT2220 100k OUTPUT 9k Q2 1k + A1 LT1097 0.01 100k 0.01 Figure 73. A1 DC Stabilizes the Circuit by Controlling Q1's Channel Current INPUT Q1 2N5486 330Ω 300pF 0.01 A1 LT1097 10M 10k 0.1 -15V 10M OUTPUT A2 LT223 900Ω 100Ω LTAM67 - TX73 AN47-34
