Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

1950 Emerson TV resurrection attempt
#18

With the rain and all, I've been back in the radio room hoping to finish a few that have been sitting on the bench since the 1st of the year - or longer. Wow! It takes some time to remember where a person was, even with notes. I do have some videos that I made which help a lot. I want to get this finished so I can clean and start a Predicta and possible amp build, so here's where I am. 1st, I want to thank Mr Anderson for his very helpful video on this set. Funny how I can "find" something, then he does a video right before I start work on it, which is very helpful. I re-watched the Emerson video to get parts I might need written down, and some potential problems to check for. One of the problems he mentioned was that one of the 10meg resistors on the vertical divider/output had been replaced and mentioned replacing those anyway since there was quite a bit of voltage on those. I checked them and found one open! (probably the same one he saw that had been replaced)  So, I don't have any laying around, which means I need to order those as well as the HV divider resistors. I started the recap on those coupler caps and HV filter caps. I decided with them out of the way I'd go ahead and replace the paper caps in the vertical, sync and video section. Boy, were those beauties buried! Vertical caps ALWAYS give trouble! Even tho I don't have ANY horizontal sweep at all! I might know why tho. Big crack in the bumbl bee caps for the horizontal. Take a look at the pics.
   
That vertical cap has a hole blown or burned in it. I did have some vertical sweep but that was buried under the HV filter cap and none of those had ever been out. Bet that and the open 10 meg resistor is what retired this set. I haven't seen anything that looks replaced, looks all original. Wish I could keep it that way but it doesn't work that way. I could re-stuff but why? Who's gonna look under the chassis unless it needs repairs. I'm taking the effort to keep parts in their original locations to avoid problems and also to locate if necessary via a Sams or something. Someone else might not be able to follow my work unless things are in their original location, and helps locate mistakes if I make any. Next I'll get the HV caps tacked in and test the set before replacing anything else.
   
There are 2 10 meg resistors and a 22 meg on the vertical output tube. The other one is below that small resistor and is open.
   

If I could find the place called "Somewhere", I could find "Anything" Icon_confused

Tim

Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44


Messages In This Thread
1950 Emerson TV resurrection attempt - by TV MAN - 03-26-2023, 09:47 PM
RE: 1950 Emerson TV resurrection attempt - by TV MAN - 09-30-2024, 03:13 PM



Users browsing this thread: 9 Guest(s)
[-]
Recent Posts
The list of my radio & TV collection!
Hello Peter, Thank you for posting that !! Sincerely Richardradiorich — 09:40 AM
Eico 232 VTVM Schematic
It's a microwave antenna. ?;-p?. I substituted 1N4002s off the 6.3 vac winding for the 1.5 volt battery. Uniprobe is the...RodB — 05:50 PM
Eico 232 VTVM Schematic
Try BAMA for a schematic. Looks like a replacement power source for the D battery has been installed. The tube may be...Chas — 04:51 PM
Eico 232 VTVM Schematic
Is that a battery holder?morzh — 04:43 PM
Eico 232 VTVM Schematic
A friend gave me this Eico 232 VTVM and I'm having trouble locating the schematic for it. This one seems to be a later v...RodB — 04:17 PM
Var resistor id
Considering what it is in series with, I doubt there should be any power requirements. Of course, we should know wher...morzh — 03:23 PM
Var resistor id
Trim pot, about 1/2 watt part of focus divider. As stated 2k ohms. This appears to be a rusty chassis, resolder all ...Chas — 03:19 PM
Var resistor id
Its a Sylvania 400 oscilloscope. here is a clip of r-100. Would be nice to know the current required. Not listed in part...Martinj — 02:10 PM
The list of my radio & TV collection!
Thanks Richard. I hope you enjoy it. Here I have created an English section on the history of radio with videos in Engl...RadioSvit — 10:23 AM
The list of my radio & TV collection!
Hello RadioSvit, first all happy new year ! I will watch your new videos this week. Sincerely Richardradiorich — 09:19 AM

[-]
Who's Online
There are currently 6311 online users. [Complete List]
» 1 Member(s) | 6310 Guest(s)
Avatar

>