40-150 #3


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40-150 table model

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Back at home.

This 40-150 from the our nations capitol in for restoration.  WBAL was one of the bush buttons on the bezel.  I bet some one listened to the events of December 7, 1941 on this very radio.  

When opened up a permanent magnet speaker was found.  The field coil of the original speaker has been epoxied to the power transformer cover.  This is a creative solution to a speaker failure.  This will be cleaned up and replaced with a resistor to make the pie filter and increased filter capacitance.  The speaker grill cloth has been replaces with fiberglass door screen material.  Although not original is served well in keeping little curious fingers at bay.  That will be replace with some original replica cloth.  

The cabinet has been refinished and looks fantastic.  Control and LOGO decals will be applied and over coated with another clear lacquer coating.  And of course, brand new reproduction wine colored transparent push buttons.  


I will be adding pictures of the chassis repair once it is on the bench.

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As delivered.

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That is a PM speaker with the old field coil glued to the chassis. 

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Some work done. 

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There are a lot of deteriorated wire insulation.  It will be replaced.

The radio did play.  I am surprised there were not spectacular releases of EMF with all that bad insulation. 

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The replacement PM speaker and baffle

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Grill cloth. 

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Strip down for refinishing. This metal will be stripped primed and painted.  

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This will look fantastic with all the new cloth and buttons. 


Under progress.

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Pre pics

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Wires to be replaced

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Replace wires in the IF transformer

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RF filter caps

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Gutted and replaced filter caps. 

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Almost done replacing parts and wires. 

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The first 370pf cap

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Replaced 370pf with selected caps close to 370 pf. 

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I always replace these ceramic/mica 370pf caps. They throw off the dial scale. 

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There is a radio station being received.  You can believe me.....

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Internal antenna attention needed.

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The large white rectangle resistor (lower left) replaces the old speaker field coil that was glued on the power transformer cover. 

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A resistor and wires needing attention in this IF transformer. 

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New Decals.....

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and a clear overcoat of lacquer

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Strip, sand, prime and paint.  

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Clean and buff on wheel. 

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Polish reflector. 

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Repaired antenna.

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Mr. Jingles was here. 

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Replaced antenna wires. 

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Not bad for inside the chassis. 

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New baffle and bigger better sounding speaker. 

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Installed with grill cloth. 

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Restored under chassis. 

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Knob felt.


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Completed with new Push buttons and grill cloth. 

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* I have a friend that is doing most of my refinishing since late 2009.  Wood finishing has been his profession and he is much faster than me.  It takes Tom a fraction of the time to accomplish (strip, stain, color blend, repair, finish, etc) what takes me a week to do.  And he can do it all year long where I am dependant on proper weather conditions.   

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