02-01-2026, 04:13 PM
So, this is your typical AK cap block rebuild.
Not sure why they use this one, considering it is but one cap, maybe for protection.
It is somewhat cold in the workshop, have to use a spaceheater (the one I fixed recently). Though I decided to order another one, and a Black and Decker of an equal caloric output is $21.
So, due to this, the wax block was stuck to the case and I had to use a heatgun for a minute or so. Came out easy after that.
Then I realized I have no 0.22uF cap thin enough to not present problems when soldering the cover back in. Somehow I overlooked the fact I do have a cap, but it was very small, 86V or so rated. Then I saw the cap. Then I looked at the sch and realized this is pretty much the feedback cap for all the Cathodes, so the voltage across it should be very small, so I used it. I even remember why I bought them on Amazon: I repaired my APC UPS and saw these caps broken off (vibration? else? I bought it used 20 years ago from some company going out of business).
Soldered it in place
Then had to straighten the cover. I have a large steel pipe, so I used it as a rollin pin.
With good success.
Soldered it in place and potted the hole.
Gave it one final check.
Not sure if I should put it back now or wait until I get the "Restor-a-Finish" and then put it together with the output amp.
Not sure why they use this one, considering it is but one cap, maybe for protection.
It is somewhat cold in the workshop, have to use a spaceheater (the one I fixed recently). Though I decided to order another one, and a Black and Decker of an equal caloric output is $21.
So, due to this, the wax block was stuck to the case and I had to use a heatgun for a minute or so. Came out easy after that.
Then I realized I have no 0.22uF cap thin enough to not present problems when soldering the cover back in. Somehow I overlooked the fact I do have a cap, but it was very small, 86V or so rated. Then I saw the cap. Then I looked at the sch and realized this is pretty much the feedback cap for all the Cathodes, so the voltage across it should be very small, so I used it. I even remember why I bought them on Amazon: I repaired my APC UPS and saw these caps broken off (vibration? else? I bought it used 20 years ago from some company going out of business).
Soldered it in place
Then had to straighten the cover. I have a large steel pipe, so I used it as a rollin pin.
With good success.
Soldered it in place and potted the hole.
Gave it one final check.
Not sure if I should put it back now or wait until I get the "Restor-a-Finish" and then put it together with the output amp.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.




