If all connections are found to be correct, the tubes may be inserted and the line-cord plug connected to a 110-volt 60-cycle receptacle and the speaker (1500- to 2000-ohm field) plugged in A slight turn of the Tone-Control knob to the right will turn on the receiver. After a brief warm-up period the voltages shown on the Schematic Diagram should be checked with a high-resistance voltniultr, u available. Voltages indicated are , measured from the point shown, to the chassis, with the' chassis as the negative terminal. If values measured are materially different than shown on the diagram, a thorough recheck of the circuit should be made. Be sure the receiver Is turned off and the linc-eord disconnected from the power receptacle while the wiring is being ¿becked.
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