5 Theory of Operation
146 Keysight 34970A/34972A Service Guide
Switch Modules
In general, all the switch modules share a common module control circuitry. This
circuitry is described below. Each module is described in further detail on the
following pages.
Switch Module Name Page
34901A 20 Channel MUX with T/C Compensation 151
34902A 16 Channel Reed MUX with T/C Compensation 153
34903A 20 Channel Actuator 155
34904A 4 X 8 Matrix Switch 156
34905A 50 W Dual 4:1 VHF MUX 158
34906A 75 W Dual 4:1 VHF MUX 158
34908A 40 Channel Single-Ended MUX with T/C Compensation 160
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