Federal Telephone and Radio Corp. 1040TB Schematic

Federal Telephone and Radio Corp. 1040TB

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Product Information:
Model:1040TB
Manufacturer:Federal Telephone and Radio Corp.

Schematics Content

Page 2:

NOTE: All voltage and resistance measurements made with respect to B- and with a line voltage of 116 V.A.C.

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ALIGNMENT
The chassis is removed from the cabinet in order to align this receiver.

Connect the output meter across the voice coil. Connect the signal generator to the standard Hazeltine loop, Model 1150, and couple loosely to the receiver loop. Set the receiver volume control to maximum. The tuning condenser plates should be fully meshed when the dial pointer is at the index mark at the low frequency end of the dial. The signal generator output should be sufficient to give a readable deflection on the output meter.

Set the signal generator to 455 kc. Adjust the I.F. tuning slugs, 14, 13, L2, Ll, for maximum output on the output meter. Set the signal generator and receiver to 1600 kc and adjust the oscillator trimmer C4 for maximum output. Set the signal generator and receiver to 1400 kc and adjust R.F. trimmer c3 for maximum output.