03-18-2023, 01:30 PM
Now I'm going to re-stuff the filter capacitors using dipped film capacitors.
As with the rest of the chassis, the filter caps have a thick layer of tobacco tar.
While turning the caps in the lathe, I used 0000 steel wool soaked in lacquer thinner to clean and polish the cans.
I used the lathe to make nice smooth cuts to remove the bottom ends of the cans. One cap is a dual the other is a single.
The single will be used as the second filter and is made up of two 4.7uf and two 2.2uf film capacitors. Hot glue is used the hold the film capacitors in a stack. The dual uses two 4.7uf and a 2.2uf film capacitors for the bias filter and two 3.3uf and a 2.2uf for the first filter.
Heat shrink tubing is used to keep the leads from touching the can.
The filter capacitors are ready to re-install.
Steve
As with the rest of the chassis, the filter caps have a thick layer of tobacco tar.
While turning the caps in the lathe, I used 0000 steel wool soaked in lacquer thinner to clean and polish the cans.
I used the lathe to make nice smooth cuts to remove the bottom ends of the cans. One cap is a dual the other is a single.
The single will be used as the second filter and is made up of two 4.7uf and two 2.2uf film capacitors. Hot glue is used the hold the film capacitors in a stack. The dual uses two 4.7uf and a 2.2uf film capacitors for the bias filter and two 3.3uf and a 2.2uf for the first filter.
Heat shrink tubing is used to keep the leads from touching the can.
The filter capacitors are ready to re-install.
Steve
M R Radios C M Tubes