General-Electric-Co-GD41U 电路原理图.pdf

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1、MANUAL OF 1939 MOST POPULAR SERVICE DIAGRAMS ALIGNMENT General Electric Connect the high side of the signal generator through a 25( mmf. condenser to the antenna lead. The low side of the sig A nal generator output should be connected to the receive! A/DELS GD4l VND GD4lU chassis through a .05 mfd.

2、condenser. Connect a suitabh Electrical Power Output Undistorted.1-0 watt Maximum.2.0 watts Loud-SpeakerElectrodynamic Outside Cone Diameter. . .5 inches Voice Coil Impedance.3.0 ohms at 400 cycles Field Coil Resistance.420 ohms (cold) ALIGNMENT Connect the high side of the signal generator through

3、a 250 mmf. condenser to the antenna lead. The low side of the sig nal generator output should be connected to the receiver chassis through a .05 mfd. condenser. Connect a suitable output meter across the voice coil leads; then proceed as follows: 1. With gang condenser plates completely closed, the

4、dial pointer should coincide with the horizontal dial line. 2. Tune receiver to the 1500 kc. point on the dial; then align trimmers (C-3 and C-5) on the gang condenser at 1500 kc. for a maximum output meter reading. PrecautionOne side of the power supply is connected to the chassisDo not connect cha

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