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  #46  
Old 04-25-2017, 08:51 AM
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Originally Posted by Electronic M View Post
Quite impressive craftsmanship. It has the feel of a Dumont set made close to mil spec, with pre-war looking parts.
That's exactly what I thought.
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  #47  
Old 04-25-2017, 09:09 AM
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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.
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.

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I don't see any wax paper caps here. Are they all micas, discs and ceramics?
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!
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Last edited by Gleb; 04-26-2017 at 04:30 PM.
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  #48  
Old 04-25-2017, 09:17 AM
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I don't see any carbon comp resistors, anywhere, either.

All WWs?
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  #49  
Old 04-25-2017, 09:18 AM
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I don't see any carbon comp resistors, anywhere, either
The green rods are carbon film resistors.
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Last edited by Gleb; 04-25-2017 at 10:09 AM.
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  #50  
Old 01-12-2019, 10:34 PM
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vts1134, thre's no any news from you. Are you still interested in getting a 23LK1B for your Leningrad television?



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...
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Last edited by Gleb; 01-13-2019 at 03:51 AM.
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  #51  
Old 01-13-2019, 08:56 AM
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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...
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  #52  
Old 01-13-2019, 10:51 AM
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Totally agree!



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...
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Last edited by Gleb; 01-13-2019 at 02:50 PM.
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  #53  
Old 01-13-2019, 02:26 PM
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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.
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  #54  
Old 02-24-2019, 04:12 AM
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Sorry for not replying Gleb
Nothing changes, still not replying. I'm gonna make a rebuilding trip in early March, whether or not I take your picture tube.
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  #55  
Old 05-23-2020, 11:25 PM
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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.
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Last edited by Gleb; 05-24-2020 at 02:13 AM.
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  #56  
Old 05-24-2020, 12:43 AM
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Quote:
Originally Posted by Gleb View Post
Here is another video of a performing Leningrad-T2:

https://youtu.be/qYZEs2diGHE

A fellow collector have 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).
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  #57  
Old 05-24-2020, 01:01 AM
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I believe he uses a modulator feeding it a composite signal.
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Last edited by Gleb; 05-24-2020 at 01:49 PM.
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  #58  
Old 05-24-2020, 05:33 PM
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I believe he uses a modulator feeding it a composite signal.
Thanks, but I'm still wondering what kind of composite signal.
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  #59  
Old 05-25-2020, 04:35 PM
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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.
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  #60  
Old 05-25-2020, 05:18 PM
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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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Last edited by Gleb; 05-26-2020 at 12:17 AM.
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