08-25-2014, 05:31 AM
Codefox1;
Yes, that will be one of the steps of the restoration. Also the leaves of the transformers need to be brushed with a wire brush and repainted too. There is still a lot to be done. I just sent another order to Mouser Electronics for some additional resistors and some electrolytics for the power supply. I plan to use tubular electrolytics under the chassis and will probably leave the existing can where it is. The existing electrolyic began at a relatively low 360VDC at the filter section the output of the choke connects to and gradually increased to about 390VDC over about 10 minutes. I do not trust the existing can electrolytic.
As to what finish to put on the transformer bells, I might go with a different finish than the black normally used. I am considering using some of the satin nickel I used on the Philco 40-201 I restored. Alternatively there is an "almost chrome" paint available that would make the transformer bells look almost like the nickel plating on the chassis.
I plan to make some detailed impedance measurements on the two transformers before I install a new transformer. It will be interesting to see how much different the two measure in that way.
Joe
Yes, that will be one of the steps of the restoration. Also the leaves of the transformers need to be brushed with a wire brush and repainted too. There is still a lot to be done. I just sent another order to Mouser Electronics for some additional resistors and some electrolytics for the power supply. I plan to use tubular electrolytics under the chassis and will probably leave the existing can where it is. The existing electrolyic began at a relatively low 360VDC at the filter section the output of the choke connects to and gradually increased to about 390VDC over about 10 minutes. I do not trust the existing can electrolytic.
As to what finish to put on the transformer bells, I might go with a different finish than the black normally used. I am considering using some of the satin nickel I used on the Philco 40-201 I restored. Alternatively there is an "almost chrome" paint available that would make the transformer bells look almost like the nickel plating on the chassis.
I plan to make some detailed impedance measurements on the two transformers before I install a new transformer. It will be interesting to see how much different the two measure in that way.
Joe
