08-30-2014, 02:45 PM
I have posted pictures of the restoration at: http://s1213.photobucket.com/user/rubal1...t=2&page=1
I did remove and paint the transformer bells. In the last pictures you can see the results of the painting effort. I used the "almost chrome" product from Krylon. The power transformer bell showed considerable rust on the inside. I sanded that to clean metal and then sprayed the inside with clear Krylon lacquer to protect the interior surface. The exterior of all the bells had to be sanded down to clean metal and then repainted. Most of the components on the PC board have been changed to new parts using metal film or carbon film resistors plus polypropylene capacitors. The PC board was modified to use 6GH8A driver/inverter tubes. I have replaced the AC fuse socket and installed a fresh 3A fuse. The AC switch was repaired. The Rotron fan was removed as was the top cover. A new output transformer is being made by Heyboer Transformer Co. Next step will be to replace the first two sections of the electrolytic can capacitor with new radial units under the chassis on terminal strips. two 100mFd @ 350VDC units X 2 will be stacked with equalizing resistors across them to bring capacitance to about 68mFd at over 600VDC both before and after the B+ choke. I will take some pictures of that parts install and details later.
Joe
I did remove and paint the transformer bells. In the last pictures you can see the results of the painting effort. I used the "almost chrome" product from Krylon. The power transformer bell showed considerable rust on the inside. I sanded that to clean metal and then sprayed the inside with clear Krylon lacquer to protect the interior surface. The exterior of all the bells had to be sanded down to clean metal and then repainted. Most of the components on the PC board have been changed to new parts using metal film or carbon film resistors plus polypropylene capacitors. The PC board was modified to use 6GH8A driver/inverter tubes. I have replaced the AC fuse socket and installed a fresh 3A fuse. The AC switch was repaired. The Rotron fan was removed as was the top cover. A new output transformer is being made by Heyboer Transformer Co. Next step will be to replace the first two sections of the electrolytic can capacitor with new radial units under the chassis on terminal strips. two 100mFd @ 350VDC units X 2 will be stacked with equalizing resistors across them to bring capacitance to about 68mFd at over 600VDC both before and after the B+ choke. I will take some pictures of that parts install and details later.
Joe
