12-13-2019, 10:19 PM
Tonight's (Friday) progress:
I finished hooking up C73 and C75, and also connected C74 (0.47 uF) across the positive terminals of C73 and C75.
The underside of the chassis now looks like this:
I realized that I needed to remove and restuff the metal can which contains C64, C65, C66, R23, R24, and R26.
The components are encased in tar. Naturally. I'll have to figure out how I can melt the tar out, with the weather forecast to be rainy this weekend with snow starting Sunday night.
So in the meantime, I set the main chassis aside after cleaning all of the switches and controls, and pulled out the Magic Brain.
How the top of the "Brain" looks with the cover removed:
Very dusty.
Now, the underside of the Magic Brain:
Rubber-covered wires, a couple paper caps, and LOTS of mica caps. Looks like it will be fun to restore. Not.
I decided that I should remove the 0-95 dial scale because it looked as if it could be easily broken.
It was held in place by two set screws.
One of the two set screws promptly broke as soon as I tried to loosen it.
The other one loosened just fine.
I had to drill out the broken one, and then carefully get the hub loose so I could remove that dial scale.
I probably should remove the multiple band dial scale as well...as soon as I figure out how to remove it, that is.
I finished hooking up C73 and C75, and also connected C74 (0.47 uF) across the positive terminals of C73 and C75.
The underside of the chassis now looks like this:
I realized that I needed to remove and restuff the metal can which contains C64, C65, C66, R23, R24, and R26.
The components are encased in tar. Naturally. I'll have to figure out how I can melt the tar out, with the weather forecast to be rainy this weekend with snow starting Sunday night.
So in the meantime, I set the main chassis aside after cleaning all of the switches and controls, and pulled out the Magic Brain.
How the top of the "Brain" looks with the cover removed:
Very dusty.
Now, the underside of the Magic Brain:
Rubber-covered wires, a couple paper caps, and LOTS of mica caps. Looks like it will be fun to restore. Not.
I decided that I should remove the 0-95 dial scale because it looked as if it could be easily broken.
It was held in place by two set screws.
One of the two set screws promptly broke as soon as I tried to loosen it.
The other one loosened just fine.
I had to drill out the broken one, and then carefully get the hub loose so I could remove that dial scale.
I probably should remove the multiple band dial scale as well...as soon as I figure out how to remove it, that is.
--
Ron Ramirez
Ferdinand IN