04-18-2012, 02:27 PM
Q1: Another question:
I have the volume control pot that seems to work half-a**, that is it changes from 0 to 350kOhms between the wiper and one end, practically does not change between the wiper and another end (from 1M to 900kOhm) and has 1M between the two ends.
But the worst of all, I cannot work the power switch on it. Once it comes to the switching position, it does not move any further, and I tried a pair of pliers (I did not want to apply so much effort so to destroy it, of course, but the effort was sizeable and way more than it is usually required). I made sure the mechanics that closes the tuning dial when the volume is off did not interfere, so it is inside the pot.
The power switch seems to have a gap between it and the front (volume) section so I sprayed a little of the DeoxIT lube inside; no effect.
The pot does not seem to easily lend itself to disassembling.
Q2:
The main filter electrolytic cap (four of them inside, 20, 2x40 and 200uF, I think). Obviously it will need replacement. I pulled the paper sleeve off, and the aluminum can remains. It's base is riveted to the chassis, but the can itself seems to have to twist-tabs that go through the base. I untwisted them and tried to pull the cap off, but so far it is resisting.
Anyone has experience with these?
I have the volume control pot that seems to work half-a**, that is it changes from 0 to 350kOhms between the wiper and one end, practically does not change between the wiper and another end (from 1M to 900kOhm) and has 1M between the two ends.
But the worst of all, I cannot work the power switch on it. Once it comes to the switching position, it does not move any further, and I tried a pair of pliers (I did not want to apply so much effort so to destroy it, of course, but the effort was sizeable and way more than it is usually required). I made sure the mechanics that closes the tuning dial when the volume is off did not interfere, so it is inside the pot.
The power switch seems to have a gap between it and the front (volume) section so I sprayed a little of the DeoxIT lube inside; no effect.
The pot does not seem to easily lend itself to disassembling.
Q2:
The main filter electrolytic cap (four of them inside, 20, 2x40 and 200uF, I think). Obviously it will need replacement. I pulled the paper sleeve off, and the aluminum can remains. It's base is riveted to the chassis, but the can itself seems to have to twist-tabs that go through the base. I untwisted them and tried to pull the cap off, but so far it is resisting.
Anyone has experience with these?
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
