[planigan]

Tony sounds like the electrolytic caps went. When they are on there way out you get a lot of hum on the speaker because they are the filter caps in the rectifier circuit. Suggest you do not power the set on any more before you replace the electolytics, you may damage parts that can not be replaced. The newer electrolytics should meet or exceed the rated voltage on old caps or the schematic and can be a little higher in mfd then old ones jbut try to styay within 20% and on the plus side. These caps have polarity markings and you have to be careful to follow them or you will do considerable damage to them and the set. Since the new caps are about one fifth the size of the old ones they can be mounted under the chassis or in the old cans. Make sure you disconnect the old ones if you hang them under the chassis. Pat