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11 Troubleshooting in contactors

Here we are going to discuss about the Problems in contactors & their solution. Problems: 1) Over heating of main contact path 2)Overheating of coil 3)Noisy Magnets 4)Failure to pick up & seal 5)Failure to drop out 6)Excessive pitting and welding of contacts ...

Hofner Colorama II restoration project part 11 flattening the warped plastic pickguard and tremolo cover

Among the many smaller jobs that have to be done to this vintage Hofner Colorama II is to flatten the warped plastic pickguard and rear tremolo cover. Here’s how they both looked before starting: Pickguard: Rear tremolo cover: I decided to tackle the rear tremolo cover first, since it appeared to be a much simpler job and also easier to replace should things go horribly wrong. I really couldn’t find any information about this on the Internet, so I did what seemed logical in my head, which was to sandwich the plastic in-between two panes of tempered glass, clamp the whole lot together, and heat it with a very hot hairdryer. Here’s the setup: After 10 or 15 minutes of heating the area above AND BELOW the cover, I took the top pane of glass off to confirm that the plastic had become soft, then clamped everything back in place and left it to cool naturally. Since I wasn’t in a hurry, I left it for 24 hours, although I’m sure that wasn’t necessary at all. The tremolo cover came out complete...