09-18-2013, 08:11 PM
Ok so if you look at the speaker in the front in the center you should see a small nut. It holds a cardboard piece that looks like the insert you use in the center of a 45rpm record to reduce the large hole to a small one. That part is called the spider. The paper cone is glued to the spider.
On the back of the speaker there is a transformer that has four connections. Two of them connect to the back side of the spider. On the backside of the spider is the voice coil. The other two connections go to the wires feeding back into the radio chassis. On the speaker on the back in the center is the field coil. Where modern speakers have a large magnet your speaker has an electromagnet. One of the wires from the field coil will connect the transformer the other goes to the chassis radio.
The reason I explained this to you is if you would like to do a little troubleshooting we need to know the field coil is good. Sometimes they are open (no resistance) and is the death blow. Time to find a new one. But if it is good all you will need to do Is have it reconed. Up for some troubleshooting??
A couple of notes
When the set is plug in and turned on these wires on the back of the speaker carry about 300V of electricity. It is important that these wires are in good condition (no worn though insulation) cause if you touch them you will get the shock of your life!!! Don't ask me how I know!
Speaker replacement on this set isn't as easy as it is on a modern set because of the field coil. Modern ones don't one and your set won't play without it. Was can discuss options later.
GL
Terry
ps You may want to use the full edit feature to correct the title of this thread.
On the back of the speaker there is a transformer that has four connections. Two of them connect to the back side of the spider. On the backside of the spider is the voice coil. The other two connections go to the wires feeding back into the radio chassis. On the speaker on the back in the center is the field coil. Where modern speakers have a large magnet your speaker has an electromagnet. One of the wires from the field coil will connect the transformer the other goes to the chassis radio.
The reason I explained this to you is if you would like to do a little troubleshooting we need to know the field coil is good. Sometimes they are open (no resistance) and is the death blow. Time to find a new one. But if it is good all you will need to do Is have it reconed. Up for some troubleshooting??
A couple of notes
When the set is plug in and turned on these wires on the back of the speaker carry about 300V of electricity. It is important that these wires are in good condition (no worn though insulation) cause if you touch them you will get the shock of your life!!! Don't ask me how I know!
Speaker replacement on this set isn't as easy as it is on a modern set because of the field coil. Modern ones don't one and your set won't play without it. Was can discuss options later.
GL
Terry
ps You may want to use the full edit feature to correct the title of this thread.
