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#1
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Most likely, the idea was in the use of either single or "overcoupled" IF coils / transformers, along with the high-gain 2 stage video amplifier. As a Leningrad's owner, I can't say that the TV's sensitivity is noticeably worse than others of the time, at least the ones with integral tuners. Later models with separate turret-style tuners do some better, of course.
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To understand a bygone era, you should use things from it Last edited by Gleb; 05-26-2020 at 12:17 AM. |
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#2
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I have 3(three) of the T-2 Leningrad and a few differnt russian roundies.
My experience is that the round CRTs, made in Easr Germany are mostly weak! I am standing not alone with that! You can easyly see on the speaker cloth the country of origin, East Germany or Russia. Do you need schematics for T-2 Leningrad? I shouldn`t invest in another bad east-german made tube! The original 23 cm CRT can easyly interchanged by a 22 cm Philips (MW 22 - __) Source for that is good old England! PYE used them in the very familiar 1949/50 TV sets. The tubes are made by Philips and are mostly good. See: http://www.tvhistory.tv/1950-59-PYE.htm If you do that, you insert a tetrode by a triode CRT! If you want to use a ion trap tube you have to change the deflection yoke. It is told (by czech repairmen), that russian picture tubes likes to implode, be careful. The schematic and the gate in front of the tube is based on the german E-1 pre-war TV set. The russian horiz. line out tube is based (optical and technical) on a german war time tube. The radio inside was available as a table set, too. Good luck! TV-Collector
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Scotty, beam me up, there is no more 4/3 Television and AM radio in Germany! |
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#3
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I forget to say, that the original CRT. has no ion trap!
Keep this in mind! Regards, TV-Collector
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Scotty, beam me up, there is no more 4/3 Television and AM radio in Germany! |
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