11-03-2014, 09:48 PM
Well, different color wires do age very differently.
The two wires that povided filament for the rect tube, greyish-dirty touch of olive/brown wires (marsh?), coming out of transformer were as flexible and soft as the day they came out of the factory.
I hesitated but then decided to change them. Not even sure why, there were no degradation at all.
I guess colors matter.
Black is the worst, it crumbles right off and all cracked and half is missing.
Then red. It is all there but cracked and will come off easily.
Then green. There are some cracks though feels not as dry.
Blue is to be looked at.
White (well, it is off-white) is pliable and soft to touch, no cracks.
And the above mentioned marsh is also (was - removed it) good.
Now electrolytics.
One cap foamed.
But when measured it shows 15uF. Lighter weighing one.
Another did not foam. The heavier one of the two. Also shows 16uF (wow).
Both when shaken make splashing luquid sounds from inside, so I have to be prepared when opening them to catch the liquid. But that is .. after tomorrow. Tomorrow is our RnD group night out, prj leader is so happy he is buying at his own expense (and since the place carries Guinness in tall pints I fully intend to seize the opportunity).
The two wires that povided filament for the rect tube, greyish-dirty touch of olive/brown wires (marsh?), coming out of transformer were as flexible and soft as the day they came out of the factory.
I hesitated but then decided to change them. Not even sure why, there were no degradation at all.
I guess colors matter.
Black is the worst, it crumbles right off and all cracked and half is missing.
Then red. It is all there but cracked and will come off easily.
Then green. There are some cracks though feels not as dry.
Blue is to be looked at.
White (well, it is off-white) is pliable and soft to touch, no cracks.
And the above mentioned marsh is also (was - removed it) good.
Now electrolytics.
One cap foamed.
But when measured it shows 15uF. Lighter weighing one.
Another did not foam. The heavier one of the two. Also shows 16uF (wow).
Both when shaken make splashing luquid sounds from inside, so I have to be prepared when opening them to catch the liquid. But that is .. after tomorrow. Tomorrow is our RnD group night out, prj leader is so happy he is buying at his own expense (and since the place carries Guinness in tall pints I fully intend to seize the opportunity).
