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static1701 09-09-2019 08:44 PM

6 Attachment(s)
Here are some close up pics. No numbers on the tuner (well, tube numbers) The yoke has a number 670535 and 29-28, that orange resistor has numbers. The Vertical transformer? had 23 65 and BGH5 marked on it. The Flyback has 15A1100 stamped into it.

static1701 09-09-2019 09:10 PM

I asked for help from the guy that has the Canadian schematics. Thanks for the tip.

Electronic M 09-09-2019 09:32 PM

Quote:

Originally Posted by static1701 (Post 3214775)
Here are some close up pics. No numbers on the tuner (well, tube numbers) The yoke has a number 670535 and 29-28, that orange resistor has numbers. The Vertical transformer? had 23 65 and BGH5 marked on it. The Flyback has 15A1100 stamped into it.

That orange thing ain't a resistor. It is a selenium rectifier...They are trouble-prone and release toxic selenium gas when they fail. Replace with a silicon diode. The numbers on the rectifier are its part number and you can look up its current and PIV rating if you have a period rectifier catalog. The plus end is the cathode (banded end of a modern diode).

Tim 09-09-2019 10:57 PM

The Rogers CRT reinforces the suspicion that it is Canadian.

I believe the hyphenated numbers are part numbers and the selenium rectifier even has P/N 93-75 printed on it. This is not the format used by U.S. CBS-Colombia for part number identification. In addition to what you listed, it looks like the audio output transformer is part number 23-63

Those part numbers and the 15A1100 flyback number may assist in finding the Canadian service data.

670535 on the yoke and C179540 on the rectifier are date codes. 35th and 40th week of 1955 respectively.

static1701 09-10-2019 08:54 AM

I was not sure what the orange thing was because it is tapped in the center. Tim, thank you for the info. Getting closer to figuring it out.

dieseljeep 09-10-2019 09:48 AM

Quote:

Originally Posted by static1701 (Post 3214700)
Yes, it is a 5J6, I pulled all the tubes the other day and tested them. That three piece chassis is really strange.. in all the prints I have looked at I can't find it anywhere. Thank you again for trying to find this...

With the 5J6, it's probably a 21mc IF. The 41mc tuners used different tubes.
The Admirals of the day were strange in that respect. The VHF only sets were 21mc, where the UHF/VHF models were 41mc.

Electronic M 09-10-2019 10:03 AM

Quote:

Originally Posted by static1701 (Post 3214793)
I was not sure what the orange thing was because it is tapped in the center. Tim, thank you for the info. Getting closer to figuring it out.

The tap (if there is only one) means it is a dual diode. Some selenium's had several taps and acted as several diodes.

Tim 09-10-2019 06:29 PM

I don't see the power transformer. What numbers are printed on or stamped into it?

static1701 09-10-2019 07:20 PM

Quote:

Originally Posted by Tim (Post 3214820)
I don't see the power transformer. What numbers are printed on or stamped into it?

No power transformer. Series wired setup. It has a small transformer on the back side of the selenium rectifier, the vertical transformer and the audio transformer.

static1701 09-14-2019 09:50 AM

Thanks to RonL, the Television is a Canadian 1957 chassis # 1621
With the information he provided, I should be able to get it going.

static1701 09-14-2019 11:23 AM

RonL: Does your book have any other prints? The 2 that you sent don't show the connections for every connection on the tube sockets. This resistors I need to replace are not listed. I think someone replaced the 12DQ6 with a 12BQ6, because the print matches everything else.

I looked at the sam's print for that model and it is similar, but not exact. Hopefully between the 2 prints I can figure out what parts I need

I usually fix tube amps, I have done a few tv's but mainly just swapping caps. This one is going to need a lot more to get it going but it will be great when it is done.

Thank you to everyone for helping out.

ronl 09-14-2019 06:28 PM

Hi static.thats all the info I have.my guess is the other connections are used for tie points.this was common in the tube point to point sets.RonL


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