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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Nov Wed 15, 2017 6:33 am 
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Eric H wrote:
early Emerson sets, like the 571 are a nightmare to rebuild with their five rectifier tubes and their nine electrolytic cans mounted on the chassis. :x
Oh, the 609 has that beat, with a total of 25 electrolytics: 11 cans containing 16 caps, plus 9 "free range" electrolytics scattered elsewhere.

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Nov Tue 21, 2017 11:29 pm 
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Don't know about the earlies stuff, but the color sets from the 60's on were clones, and they typically used cheaper parts and components. On the color set for example the crt bezel was made from plastic vs. metal on Rca's, Zenith's and other majors.


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Nov Fri 24, 2017 6:49 pm 
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Location: Phoenix, Arizona
I owned two Emerson 609's and thought they were an interesting set.

The chassis was obviously designed for a 10 inch CRT and then factory modified for the Protelgram projection.

As I recall the set was partially series string but had a power transformer for some part, maybe the projection HV supply.

I aligned the optics in a bunch of Protelgram projection sets and you don't need any kind of factory alignment tools. It helps if you can generate a cross hatch, I use a B&K 1077B.

The front surface mirror in the top lid is very critical for reflectivity. I tried various suppliers and never got anything close to the original. The result is a dim picture. The optics in the box were less likely to get prying hands with Ajax cleaner.

I thought maybe I could get a mirror out of a big junk modern projection set and cut it down.

Also Protelgram made several versions of the optical box with different aspherical correction lenses. (the lens in the top of the box). If you have the wrong lens for your throw distance, you can't get even focus across the screen.

Be careful with the CRT as if you don't have scan failure protection, burning a line in the Aluminized CRT is real easy.

I moved on to a Scott 6T-11 for less floor space.

Jim


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Sep Sun 23, 2018 1:49 pm 
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Another 571 owner here; I have had it for over 40 years. They do have an interesting power supply, with a voltage doubler and a negative rectifier, to get around 400 volts end to end. It is a hot chassis design, with a filament transformer. Mine is the early channel 1 version, with all.of those 25Z6 rectifier tubes.

They seem to be uncommon; I have never seen another one, except in pictures

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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Sep Sun 23, 2018 2:34 pm 
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Location: Lafayette, CO
I have owned several Emerson sets but have not kept any for one reason or another. I remember a 545 (l think that's the number) at a MAARC auction 15 or so years ago, passed as it was in poor shape. The 628 is an Ingraham cabinet. The one l owned was on ebay about a year ago, from Maryland. They get attention, but nobody notices. Craig


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Sep Mon 24, 2018 6:40 pm 
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Tim Tress wrote:
Another 571 owner here; I have had it for over 40 years. They do have an interesting power supply, with a voltage doubler and a negative rectifier, to get around 400 volts end to end. It is a hot chassis design, with a filament transformer. Mine is the early channel 1 version, with all.of those 25Z6 rectifier tubes.

They seem to be uncommon; I have never seen another one, except in pictures


I recently restored one of these. I changed out those 5 25Z6 rectifier tubes with 1N4007 diodes. Save a bit of load on the transformer not having to power the filaments. I just cut the filament line and left the tubes in place and wired the diodes to the tube sockets. I have never before seen a circuit where the primary of the power transformer is used as an autotransformer to develop the B+ voltage.

Bill


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Sep Sat 29, 2018 1:52 am 
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I for one would love to find an Emerson 304 or 545. Not many around I'm sure...


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Sep Sat 29, 2018 11:27 pm 
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From what I have read, the 545 was priced similarly to the RCA 630TS, which must have outsold it greatly. The styling almost makes it look like a prewar model.

If I had been there, I probably would have bought that 545, even if it needed a lot of work.

In the early 1960s, the only color set which wasn't an RCA clone was Zenith. While a few manufacturers had their own designs out by around 1965, others milked the basic CTC15/16 design for a lot longer.

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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Mon 01, 2018 7:09 pm 
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Recently restored this 571.

Also made a table for it to sit on.
Also a pic of the pc board for the new filter caps. I left the old ones in place.


Attachments:
EmersonWithTable-1.jpg
EmersonWithTable-1.jpg [ 184.3 KiB | Viewed 198 times ]
Table-1.jpg
Table-1.jpg [ 213.61 KiB | Viewed 198 times ]
CapBrd-1.1.jpg
CapBrd-1.1.jpg [ 130.97 KiB | Viewed 198 times ]


Last edited by Bill Harris on Oct Tue 02, 2018 5:25 am, edited 1 time in total.
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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Mon 01, 2018 10:52 pm 
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Very nice work and a classic early Emerson TV. Enjoy!


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Mon 01, 2018 11:46 pm 
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I have 4 or 5 Emerson sets but I like the 644 styling the best. I used to have a 585 Console with TV as well as Radio and Phono. Here is the 644.


Attachments:
Emerson small.jpg
Emerson small.jpg [ 90.68 KiB | Viewed 182 times ]

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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 1:43 am 
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Very nice work, Bill! Are those the original knobs? I think that the ones on mine are for an RCA.

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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 3:58 am 
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In some of the older sets, they had a very bad habit of putting components in the eyelet holes of the terminal strips.

Bob

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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 5:24 am 
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Location: Colorado Springs, CO
Tim Tress wrote:
Very nice work, Bill! Are those the original knobs? I think that the ones on mine are for an RCA.

Thanks, yes, the knobs are original.


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 8:30 pm 
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Bill Harris wrote:
Recently restored this 571.

Also made a table for it to sit on.
Also a pic of the pc board for the new filter caps. I left the old ones in place.


Wow Bill, very nice indeed, and that table looks like the real deal. The PC board is a great idea.


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 9:30 pm 
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philsoldradios wrote:
I'm currently restoring a 1949 Emerson projection TV (model 609)
For those who have been waiting with bated breath, I did eventually finish the 609 restoration. Despite my griping about rotten build quality, it does make a nice picture (and audio), after all.

Image

Image

Much work to restore, though. You can read all the details at https://antiqueradio.org/Emerson609Proj ... vision.htm .

Regards,

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Tue 02, 2018 9:43 pm 
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As the former owner of two Emerson 609's I must say that looks quite spectacular!

What are you using for the mirror in the top? Original?

Jim


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Wed 03, 2018 12:24 am 
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I resilvered the big canopy mirror as well as the small 45-degree mirror inside the optics box. The article referenced above has more details.

Phil Nelson
Phil’s Old Radios
https://antiqueradio.org/index.html


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Wed 03, 2018 12:42 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Phoenix, Arizona
I reduced the size of my pile by selling my 609's to a friend and keeping a Scott 6T11 projection.

I tried a couple of mirrors in the lid but none reflected as well as the original. I have my eye on a three tube TV that is headed for the junk and thought it may have a usable mirror up in the top.

About the only use my old TV's get these days is to watch Meet the Press on Sunday morning on an RCA 621TS. I have too much stuff on the closed lid of the 6T11.

As I grow older I find there are getting to be fewer people who want to collect old radios and TV's

Jim


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 Post subject: Re: Why don't Emerson TV's get more attention?
PostPosted: Oct Wed 03, 2018 1:24 am 
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Joined: Apr Mon 24, 2006 1:05 am
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Location: Ellington CT
Kevin Kuehn wrote:
Here's a 698 Series B I picked up a while back.


Hi, I have one of those little gems. Have you tried to restore it yet? The power supply is strange, and has I think 5 or 6 cans. I re-stuffed mine, and replaced every other lytic and paper cap in the set. i still have sync problems after about 10 minutes. I put it aside for a while, and will get back to it maybe this winter. Nice look, and it doesn't take up much space. But that *&$$%#@ power supply and sync circuit!!! LOL.

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