01-12-2012, 09:08 PM
Actually I have several ways.
The first one is to flick them quite hard. This can make the tin whiskers fall away and hey presto it works. For a time...
The second one is to cut the screen lead. Micacle cure! Until two pins of the actual transistor short out.
The third way is to heat them up with the iron. This is a newer technique that seems to work in some cases. Worth a shot.
The fourth way is to put a capacitor or a battery between Screen and the other three in turn. Blows the whiskers.
The fifth way is Replacement. AC127 etc will do here. Or you could go down the silicon route with the BF450. Although a silicon transistor, it will operate at a Germanium bias, although in some cases the set may need some realignment.
Actually, NASA are having trouble with these transistors too with some of their early stuff that's out there.
Cheers,
Steve P.
The first one is to flick them quite hard. This can make the tin whiskers fall away and hey presto it works. For a time...
The second one is to cut the screen lead. Micacle cure! Until two pins of the actual transistor short out.
The third way is to heat them up with the iron. This is a newer technique that seems to work in some cases. Worth a shot.
The fourth way is to put a capacitor or a battery between Screen and the other three in turn. Blows the whiskers.
The fifth way is Replacement. AC127 etc will do here. Or you could go down the silicon route with the BF450. Although a silicon transistor, it will operate at a Germanium bias, although in some cases the set may need some realignment.
Actually, NASA are having trouble with these transistors too with some of their early stuff that's out there.
Cheers,
Steve P.
If we've always had that, why is the car boot open? You aren't smuggling in another old TV are you...?
