10-03-2020, 10:55 PM
I took the cover off the equalizer regulators: interesting construction. There were tons of dust in it.
So I vacuumed it furst.
Then I saw that the thumbwheels rotate the wipers of potentiometers that are open type: the resistive element is just a piece out in the open and the wiper is also in the open. No encasing at all. Very easy to introduce Deoxit. Which I did.
The High regulator uses Bowden cable. It's that same cable used in bicycle braking. And it seems it does not move as much as it needs to. But then the travel is limited by the fixture that holds the rod which is the IF core (or so I think) and it has factory paint on it.
The howling takes place when the lowest equalizer regulator is at the maximum. Wonder why......
Oh....with two small pieces of wire got reception on UKW (FM). Very quiet, but several station. Maybe with the real antenna plugged in it wil get better.
So I vacuumed it furst.
Then I saw that the thumbwheels rotate the wipers of potentiometers that are open type: the resistive element is just a piece out in the open and the wiper is also in the open. No encasing at all. Very easy to introduce Deoxit. Which I did.
The High regulator uses Bowden cable. It's that same cable used in bicycle braking. And it seems it does not move as much as it needs to. But then the travel is limited by the fixture that holds the rod which is the IF core (or so I think) and it has factory paint on it.
The howling takes place when the lowest equalizer regulator is at the maximum. Wonder why......
Oh....with two small pieces of wire got reception on UKW (FM). Very quiet, but several station. Maybe with the real antenna plugged in it wil get better.
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.
