Re: 1947 Radio

Posted by Tim Cole On 2013/12/1 17:45:03

Those radios are standard household super heterodyne receivers modified for 6 volts via the 60hz vibrator.

The resistors can also open, but if there are no symptoms of the need for repair - fading or static after warm up, excessive hum, poor reception, poor amplification, etc, etc, then the best repair is to purchase parts and put them in a cigar box.

I remember solid state oscillators being made which is a worthwhile purchase.

Also, if the coils open the unit will need to be realigned using an oscilloscope.

Because the units are not rectifying household current the filter capacitors have a longer life. However, old capacitors don't damage any part of the radio if they are drying out.

The biggest problem with radios is there is nothing but junk on the airwaves.