Signal Electronics, Inc. 241 Schematic

Signal Electronics, Inc. 241

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Product Information:
Model:241
Manufacturer:Signal Electronics, Inc.

Schematic Pages

PNG: Page 1 Rider Manual Volume 19
PNG: Page 2 Rider Manual Volume 19

Schematics Content

Page 1:

APPROXIMATE GAIN PER STAGE USING CHANALYST AND WITH A FIXED BIAS OF - 3 VOLTS

BOTTOM VIEW

Page 2:

ALIGNMENT PROCEDURE

With the receiver in the cabinet, set the dial pointer to 1600 kc and make a light pencil mark on the dial backing plate. Repeat the procedure for 1400 kc. This mark can be easily erased after alignment.

Remove the receiver from the cabinet and connect output meter across voice coil.

Connect the signal generation to the standard Hazeltine loop model 1150 and couple it loosely to the receiver loop. Set the volume control at maximum, and fully mesh the tuning capacitor.

The output of the signal generator should be just sufficient to give a readable deflection on the output meter.

Set the signal generator to 455 kc and adjust i-f trimmers for maximum output int he following order: C8, C7, C6, C5. Repeat sequence if trimmers were badly maladjusted.

Set the signal generator and receiver to 1600 kc and adjust the oscillator trimmer C2 for maximum output.

Set the signal generator and receiver to 1400 kc and adjust the antenna trimmer C4 for maximum output.

Set the signal generator and receiver to 1600 kc and readjust the oscillator trimmer C2 for maximum output.