Block Diagram - HP 3400B User's And Service Manual

Theory of Operation
This chapter is organized to provide descriptions of the circuitry
contained on each schematic shown in chapter 7. A block diagram
overview is provided f ollowed by more detailed descriptions of the
circuitry contained in the schematics chapter.
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Block Diagram 39

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Input Attenuator 4 1
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Impedance Converter
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Post Attenuator 42
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Wideband Amplifier 42
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Chopper Op Amp
I
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Power Supplies 44
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Switch Board 45
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4 1
Thermocouple Pair 43
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