From Russia With Love

[TV-collector]

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

[TV-collector]

I forget to say, that the original CRT. has no ion trap!
Keep this in mind!

Regards,
TV-Collector

[Jon1967us]

Gorgeous! And what an adventure. That's what this hobby is about.

[Gleb]

That's how a Russian-assembled chassis looks from the bottom:



Unfortunately, this chassis is fairly cannibalized; I will do my best to find all the missing parts.
Notice the unusual design of the channel/mode selector:



If only a chassis of the kind is complete and integral, there is nothing to replace, 'recap' or even touch at all, thanks to very reliable components used. A plug-and-play version

[DVtyro]

Originally Posted by Gleb

The Leningrad-T2 television was introduced in 1949 as a greatly improved version of the preceding Leningrad-T1 set (1947). According to the early Russian classification, the Leningrad-T2 employs a 9" round picture tube (T1 = 7", T2 = 9", T3 = 12") with magnetic deflection and focusing.

Compared to the almost flat and rectangular 12-inch picture tube of the 1939 E1, the tube of the T2 is rather pedestrian.

Originally Posted by Gleb

The Leningrad-T3, a kingly 12" console version of the set...

Right, this screen looks more like it, I mean, very similar to the E1 picture tube.

Originally Posted by Gleb

In addition to the originating Kazitsky plant in Leningrad/St.Petersburg, the T2 television was produced by the Sachsenwerk factory in East Germany as well. In 1949 the factory was involved in postwar reparational service, was equipped with some production lines from the Kazitsky plant, and began to produce exactly the same television but with the use of some German components as well.

Can you share your source? My source tell me exactly the opposite: Germans in the Soviet occupation zone were employed to restore the factories and to produce goods, most of which were sent to the Soviet Union. As to how the production lines turned up in the Soviet Union, maybe they were dismantled in the late 1940s and sent to the USSR, when the Soviets decided that they could not produce stuff that can have dual civil and military use in Germany. They dismantled and moved out many other German factories.

Originally Posted by Gleb

As you might know, Russia was the first country to develop and adopt the new 625/50 broadcasting standard.

Indeed, all 625-line formats stem from a 1944 Soviet format, later christened System D. They developed the standard, but they did not have the equipment, so they employed Germans to make it. They also pushed this standard as the common one for Europe, but because VHF I was limited to 21 MHz, Western Europe had to shrink 8 MHz bands of System D to 7 MHz, which came to be known as "Gerber standard" or System B. Read more here.

Originally Posted by Gleb

A few televisions were introduced before the war as well, ending up in 1941 with the 7" 17TN-3 set

This one being a copy of an American set, made for the USSR. At that time both RCA and the USSR used 343-line scanning. The USSR purchased about two thousand sets and another thousand in parts, from which they assembled some sets too.

Originally Posted by Gleb

However, by 1946 the industry was recovering pretty quickly, thus the need for CRTs was increasing. Since the prewar picture tubes were considered good enough, the CRT manufacturers reasonably decided not to 'reinvent the wheel' and just re-engaged their production, along with some improvements.

Yes, pre-war German tubes as well as tubes produced on a factory line purchased from RCA were likely better than anything the Soviets could make after the war.