TV Wisła

TV "Wisła" was the first as serial manufactured in Poland. TV Wisła was manufactured in 2 versions: Wisła A and Wisła B. Wisła A is very similar to USSR TV set called Awangard, because it was USSR licence.

In Wisła A (USSR licence) used tubes:

6N1P -mixer and heterodyne
6Ż3P -the first amplifier of intermediate frequency for vision
6Ż3P -the second amplifier of intermediate frequency for vision
6Ż3P - the first amplifier of vision
6P9 - the second amplifier of vision
6Ż3P - the first amplifier of intermediate frequency for audio
6Ż3P - the second amplifier of intermediate frequency for audio
6Ż3P -limiter of amplitude
6Ż3P - preamplifier of audio
6P9 - final amplifier of audio
6N1P -separator and generator for vertical deflection
6P1P - amplifier of vertical deflection
6N1P - generator for horizontal deflection and amplifier for synchro pulses
G807 -amplifier for horizontal deflection
6C4P - dempfer
1C1S - high voltage rectifier
5C3S -rectifier
31ŁK2B- cathode ray tube


Wisła B was polish construction. Thats why used:

ECC85 -mixer and generator heterodyna
EF80 -the first amplifier of intermediate frequency for vision
EF80 -the second amplifier of intermediate frequency for vision
EF80 - the first amplifier of vision
6P9 - the second amplifier of vision
EF80 - the first amplifier of intermediate frequency for audio
EF80 - the second amplifier of intermediate frequency for audio
EF80 -limiter of amplitude
EF80 - preamplifier of audio
6P9 - final amplifier of audio
ECC85 -separator and generator for vertical deflection
EL84 - amplifier of vertical deflection
ECC85 - generator for horizontal deflection and amplifier for synchro pulses
EL81 -amplifier for horizontal deflection
EY81 - dempfer
1C1S - high voltage rectifier
5C3S -rectifier
31ŁK2B- cathode ray tube


This is Wisła A:



And this is Wisła B:



Something about repairing. Usually these TV sets are in very poor conditions. TV Wisła could receive ony one canal. That's why these TV sets was disconnected many years ago. Some survived in cellers, but humidity was enemy.It's the reason of biological corrosion of wood and chemical corrosion of chassis and another details. If condition is very poor, then it's necessary almost total recontruction of a lot of parts of body. Suprisly, electrolyt capacitors usually are good. But paper capacitors usualy are bad, semiconductor diodes too.

 


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