SPECIFICATIONS
Power consumption... 80 Watts, AC Models 82Watts, DC Models (At 117 volts AC Supply)
Power Output - 3.5 Watts Max. 2.5 Watts 10 % Distortion
Selectivity - 45 KC Broad at 1000 times Signal
Intermediate Frequency... 455 KC
Speaker... 12" PM Dynamic
Tuning Frequency Range... 540 to 1620 KC
Sensitivity (For. 05 Watt output-external Antenna) 10 microvolts average

ALIGNMENT PROCEDURE

Volume Control - Maximum All Adjustments.

Allow Chasis and Signal Generator to "Heat Up" for several minutes.

The equipment in column at right is required for Aligning:

Signal Generator which will provide An accurately calibrated signal at test frequencies as listed. Output indicating meter; Non-metallic Screwdriver. Dummy Antennas .01 mfd., and 400 ohms.

DRIVE CORD REPLACEMENT
Turn the tuner so that slot in large drive pulley is at the top. Use & new oord 50 long and tie one end to the tension spring. Fasten the other end of the tension spring to the drive pulley. Pass cord through slot ln pulley; vind one and one-halt turns counter clockwise, progressing from center of pulley toward front. Pass cord around drive mechanism, two complete turns progressing from front to rear. Pass cord counter clockwise around 1dler pulley A. Pass oord in front of oord between drive pulley and drive mechanism; then clockwise around idler pulley B. Pegs cord back of cord between drive pulley and drive mechanism; then counter clockwise around drive pulley for one and one-half turns, progressing from rear to senter, Pass cord through slot and tie to string. Cut off excess spring. Attach dial polater to cord between idler pulley A and B.

MECHANICAL ALIGAMENT: - The following mechanioal adjustments should be made before alignment:

1. Rotate shaft of tuning unit until carriage is against top stop position,

2. Space oscillator coil slug 1-5 / 32" out from top of oscillator coil form.

3. Space R.F. coil slug 1-29 / 64" out from top end of R.F. coil winding. (Note: - The distance 1 and 2 should be measured from mounted end of the slug)

4. Adjust screw on trimmer of wave trap towards open position so that condenser plates are open at least 1/32".

B. I.F. ALIGNMENT PROCEDURE
1. Feed I.F. frequency from the signal generator through through a 0.01 mfd condenser to the control grid of the R.F. tube.
2. No signal will be heard unless trimmer condenser under chassis is unscrewed and reduced from original setting.
3. Turn volume control full on.
4. Make preliminary I.F. adjustment with signal level approximately 50 Mv.
5. Tune I.F. trimmers for maximum signal, reducing I. F. signal input to coupling loop to keep output voltage less than 0.5 V across the voice coil or a dummy 3 ohm resistor.
6. When maximum output has been secured, adjust trimmer condenser in the I.F. trap by turning clockwise to the minimum signal.

C. R.F. ALIGNMENT PROCEDURE
1. Volume control full on.
2. Adjust tuning unit to top stop position.
3. Feed 1620 kc signal into external loop. Hold audio output below 0.5 V. Adjust the oscillator trimmer condenser to maximum output.

4. Move slugs in by means of tuning dial so that pointer is approximately 1" from the stop end, and a signal received from the external loop on a frequency of 1400 kc. Adjust lower trimmer (R.F. trimmer) to maximum output. Reduce R.F. input to keep signal output voltage below 0.5 V across the voice coil or a dummy 3 ohm resistor.
5. Rotate tuning shaft until pointer is approximately 1" from the other and of the scale. Feed to the external loop a test signal at 700 kc. Adjust the R.F. coil slug by rotation in the Tinnerman nut to maximum output.

NOTE: Alternately adjust R.F. trimmer and R.F, slug until maximum output is reached at both 1400 kc. and 700 kc. as instructed in paragraphs C4 and C5.

CAUTION: Extreme care should be taken in the 700 kc. position to make sure that the tuner carriage is not moved by the adjusting tools or hand pressure on the slug screw. Carriage should not be hold against the frame, but should be allowed to as assume its normal position when adjusting the R.F. coil slug.

CAUTION: - If a dial lamp burns out, it should be replaced at once. A hole in the bottom of the chassis mounting board provides access to the dial lamp so that it may be replaced without removing chassis from the cabinet