Now, I could interpret that wording of "alignment” as being poor reception on the top spectrum of the broadcast band OR as per the sets dial scale logging being in error as to the received stations read out frequency and I would suspect the latter.
Looking at the design of that receivers local oscillator circuit …but with me not not having it mechanically on hand for inspection, one sees a fixed open air coil form that the osc coil is wound upon, probably with no provision for varying its inductive value. One also sees the osc variable trimmer/padder condenser just to the left of the item # 13…(Broadcast band osc coil)…..that is shown on the schematic.
If you will take a micro blue Sharpie and tick mark that caps adjustment screws slotted referenced position as compared to the adjunct case; that will then let you later find your way back home out of the jungle, if required.

That trimmers adjustment is the manner of making correction of the sets osc frequency on the HIGH FREQ ¾ end of the AM band. Any error on the LO FREQ end of the BCB band is made with changing the inductive value of the oscillator coil proper, and as I said….I believe that your osc coil unit is a fixed value with no provision made for its inductive adjustment.


Sooooo if you will slightly adjust that trimmer, you should find tightening it will bring a received station down in frequency on its display on the dial, while loosening it will shift it upwards. UNLESS a prior owner/ operator/ diddler of that set had GROSSLY misadjusted that trimmer, normally ~ ¼ turn in the proper correcting direction should bring the set in accordance to factory alignment at the high ¾ ends portion of the AM scale.


BUTTTT….don't expect a common entertainment/grade receiver giving you 570.003______950.015____1470.005 degree of readout accuracy on your dial scale across all of the AM band (SW also).. You will just have to evaluate and average out
the results on , to the most desirable dial span commonly used.

If you were highly experienced, with proper tech equipment, had access to the center of the OSC coil, a tuning slug could be installed and compensatory turns removed from the resonant winding. That would let one have capabilities for making variable inductance values to that osc coil for the LOW FREQ end of the AM band, along with the variable C values of the trimmer just mentioned.

With the capabilities of adjustment of both L and C values, one could then make progressive tweaks of the two units values to either compress or expand the linearity of the tracking response to fall into the logged scale on the dial . (WITHIN the limitations of the accuracy that the factory built the unit of that first design prototype.)

Thassit….

73's de Edd

:I notice my broadcast stations are somewhat out of alignemnt on the upper dial. Can someone advise how to bring them back into alignment?