Any indications where yours was finally assembled ?:smoke:

Mine is an early German one.

Quite impressive craftsmanship. It has the feel of a Dumont set made close to mil spec, with pre-war looking parts.

Just rereading your entire thread.

I would leave this particular set alone. No electronic restoration.

How could you? ANY restorative work is going to leave signs, and this set should be set aside and regarded as a particularly outstanding example of Commie craftsmanship.

Sorry. Couldn't resist including one anti bolshevik barb.:smoke:

http://s018.radikal.ru/i526/1704/70/fbb3f271a160.jpg

I don't see any wax paper caps here. Are they all micas, discs and ceramics?

That's exactly what I thought. :smoke:

My thoughts are the opposite, it definitely SHOULD be restored, at least for its performance. The funny thing is that if the set is original and well-kept, it doesn't need any tough restoration. For a Russian-made set, it's enough to do some cleaning and lubricating due to the very reliable paper & electrolytic capacitors used in it. A German one may require replacing or 'restuffing' of 6-7 the most responsible German wax paper capacitors.

That is the distinction! A paper capacitor can be everlasting if it is sealed absolutely hermetically. The white porcelain tubes with the metal caps on their ends, and the grey tubular metal cans, are the paper-type capacitors that don't need to be replaced!

I don't see any carbon comp resistors, anywhere, either.

All WWs? :smoke:

The green rods are carbon film resistors.

vts1134, thre's no any news from you. Are you still interested in getting a 23LK1B for your Leningrad television?

http://www.videokarma.org/attachment...1&d=1547352789

This CRT is a dud but I got in contact with a fellow from a CRT rebuild shop and told him your wishes about originality. He's willing to save the original appearance of the CRT as much as possible while rebuilding: to keep the original gun by replacing only the cathode, to provide and guarantee a good lifetime without aluminizing, and so on.
But then I lost contact with you; you haven't responded to a number of my emails. We all guess that the rebuild shop won't last long...

Rather obvious from the family photos that filthy, Godless Commies & Murricans were/are more alike than 1st imagined. That family pic could have easily been Americans-I've seen dozens thru the years. The Americans qould have likely been wearing big hats & holding rifles, though. Always suspected Russians & Americans would have generally been fast friends if the language barrier could have been overcome, & our 2 idiot governments had been gotten outta the way...

Totally agree!

http://videokarma.org/attachment.php...1&d=1547394142

The reverse example for me. Apart from the background, I could decide that there're some normal Russian builders from the 1930s having their lunch :)

We are pretty similar by nature, physically and even mentally, and our nations have a lot to share! Let's be friends, do deals, share experiences, and leave the politicians to play their own games!

Back to the CRT. I should explain why I'm so eager about rebuilding. I have a number of exhausted picture tubes on hands, beside the one intended to vts1134. Visiting the rebuild shop requires two pretty long drives (about 150 miles each way), to bring the tubes there and back, accordingly. Thus I move and move my rebuilding plans, waiting for John's decision and wondering how soon the shop may go out of business...

Sorry for not replying Gleb. I have been extremely busy and my TV collecting has taken a back seat currently. I've replied to your email.

Nothing changes, still not replying. I'm gonna make a rebuilding trip in early March, whether or not I take your picture tube.

Here is another video of a performing Leningrad-T2:

https://youtu.be/qYZEs2diGHE

A fellow collector has just finished electronic restoration of his Russian-assembled set from 1949.

Any idea what the signal source is? PAL or SECAM? Trying to figure out the appearance of the chroma dots (which also may also be messed up by the YouTube video coding).

I believe he uses a modulator feeding it a composite signal.

Thanks, but I'm still wondering what kind of composite signal.

I was looking over the schematic when I noticed that it has only 2 stages of video IF but 3 stages of audio IF. Is that due to using the TV sound section for the FM radio?

With only 2 video IF stages, I don't think this TV Was intended for fringe areas.

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.

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 :stupid:

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

Regards,
TV-Collector:stupid:

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

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

http://videokarma.org/attachment.php...1&d=1592661677

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:

http://videokarma.org/attachment.php...1&d=1592661791

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 :D

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

https://i.ibb.co/4FnDzRx/e1vonvornmit-Bild.jpg

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

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.

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.

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.

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.