06-04-2020, 08:22 PM
The electrical work is proceeding.
I have attached new wires to replace the crumbling wires on the power transformer. I used shrink wrap and then some liquid electrical tape to cover the exposed part of the connection where I could not get the shrink wrap. Here are before and after pictures.
I have started to replace the wires in the chassis with crumbling insulation one by one. I decided to strip down the chassis as most of the wires going to the IF transformer will need to be replaced and I thought it would make rewiring easier if everything was removed. It will take some time and I will change out the caps and resistors as I change the wiring. I have taken many pictures and lots of notes to ensure I place wires back with the same routing.
I have used Dexoit to clean up the contacts on the top and bottom of the button selector assembly. It now works smoothly and looks much better. I am not sure if I want to tackle replacing the green wires that look to be crumbling or leave well enough alone. They are fairly short and there is not any movement on them when the buttons are operated so I do not think they would be much of a shorting potential even if all the insulation dropped off.
One of the tube grid caps came off when I was trying to remove the cap connector. It was stuck on. I looked up how to repair it using epoxy or super glue. I will give that a try as I think there is a good chance for the repair to work.
I was trying to source replacement grid cap connectors and I cannot find any that look the same as the originals. I only found the ceramic type.
Does anyone know a source for these?
I will need to replace the wires and might as well replace the cap connectors.
The wire seem to be cloth covered and one has a metal spring type sleeve.
Do these wires need to be special or can I use regular 20 ga hookup stranded 600v hook up wire as a replacement?
I used some Evaporust to clean the top of the chassis. It removed the surface rust but left a very uneven pattern.
Should I consider painting the top of the chassis with Krylon Silver or does that present some issues later?
Regards, John
I have attached new wires to replace the crumbling wires on the power transformer. I used shrink wrap and then some liquid electrical tape to cover the exposed part of the connection where I could not get the shrink wrap. Here are before and after pictures.
I have started to replace the wires in the chassis with crumbling insulation one by one. I decided to strip down the chassis as most of the wires going to the IF transformer will need to be replaced and I thought it would make rewiring easier if everything was removed. It will take some time and I will change out the caps and resistors as I change the wiring. I have taken many pictures and lots of notes to ensure I place wires back with the same routing.
I have used Dexoit to clean up the contacts on the top and bottom of the button selector assembly. It now works smoothly and looks much better. I am not sure if I want to tackle replacing the green wires that look to be crumbling or leave well enough alone. They are fairly short and there is not any movement on them when the buttons are operated so I do not think they would be much of a shorting potential even if all the insulation dropped off.
One of the tube grid caps came off when I was trying to remove the cap connector. It was stuck on. I looked up how to repair it using epoxy or super glue. I will give that a try as I think there is a good chance for the repair to work.
I was trying to source replacement grid cap connectors and I cannot find any that look the same as the originals. I only found the ceramic type.
Does anyone know a source for these?
I will need to replace the wires and might as well replace the cap connectors.
The wire seem to be cloth covered and one has a metal spring type sleeve.
Do these wires need to be special or can I use regular 20 ga hookup stranded 600v hook up wire as a replacement?
I used some Evaporust to clean the top of the chassis. It removed the surface rust but left a very uneven pattern.
Should I consider painting the top of the chassis with Krylon Silver or does that present some issues later?
Regards, John
