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-   -   20" round tube DuMont on the 'bay (http://www.videokarma.org/showthread.php?t=248927)

Ampico-kid 09-27-2010 03:29 PM

Quote:

Originally Posted by holmesuser01 (Post 2983646)
Please, somebody save this set! I would love to have that one myself, but dont have ANY room for it.

That poor chassis. I sure hope it is fixable!

Not to worry. I think it will be saved. Chassis looks a little rusty, but probably can be cleaned up to look and work real nice.
Bob

M3-SRT8 09-27-2010 04:08 PM

Yup...I'm going for it.

LJB:smoke:

Sandy G 09-27-2010 04:45 PM

Hope you get it....Will keep my fingers crossed.

M3-SRT8 09-27-2010 06:38 PM

I want to collect all of the early DuMont RA #s. Also, I've always wanted wanted one of the DuMont "Bar" or "Club" Telesets. I've restored a couple of DuMonts, and the RA-105B "Sussex" I did is a close cousin of the RA-106, so I shouldn't have any problems. Hope the CRT isn't dead.

...all I need now is a Bar to go with it.:smoke:

tvdude1 09-27-2010 07:22 PM

dumont
 
Hey Lee , count me in for the ride to pick it up.

Jeffhs 09-27-2010 09:21 PM

Quote:

Originally Posted by bandersen (Post 2983653)
Huh ? Every late 40s TV should work with an ATSC->NTSC convert box. All of mine certainly do. Just use the RF out for ch 3 or 4.
The RF frequencies for channels 2-13 were standardized by then.

I was wondering whether the set will work with a box because of the IF strip, not because of the tuner. If this is a late 1940s set, the video IF may be 28 MHz (which, BTW, is why so many of these early sets would pick up local amateur radio operators transmitting on ten meters) or some other oddball frequency, not 41 MHz as all sets are today. Aren't the converter boxes set by default to operate only with TVs having 41-MHz video IF strips? I don't see how a modern converter would work at all with any TV made before 1960.

jr_tech 09-27-2010 09:33 PM

Quote:

Originally Posted by Jeffhs (Post 2983673)
I was wondering whether the set will work with a box because of the IF strip, not because of the tuner. If this is a late 1940s set, the video IF may be 28 MHz (which, BTW, is why so many of these early sets would pick up local amateur radio operators transmitting on ten meters) or some other oddball frequency, not 41 MHz as all sets are today. Wouldn't the difference in IF frequency have a bearing on whether or not a converter box will work with a given set? :scratch2:

NO! It will not make any difference at all. A DTV converter will work with any set that can be tuned Ch 3 or Ch4. The exception to this would be pre-wwII sets that have 441 horiz scan lines rather than 525.A scan converter box would also have to be used, as well, to make it work.
I have used DTV boxes on several sets with the old 21 mHz if... they work just fine!:music:

jr

Steve McVoy 09-27-2010 10:04 PM

Actually, no scan converter would be required for a prewar set. The horizontal controls will adjust to the 441 line signal just fine.

jr_tech 09-27-2010 10:35 PM

Quote:

Originally Posted by Steve McVoy (Post 2983679)
Actually, no scan converter would be required for a prewar set. The horizontal controls will adjust to the 441 line signal just fine.

I am not sure how to interpret that statement...are you indicating that:

1.The DTV converter box has some internal adjustments that allow it to be set to a 441 line horizontal frequency.

or:

2. The old 441 line sets have enough horizontal frequency range to allow them to be easily set to 525 line rate.

or perhaps something else?
jr

Steve McVoy 09-27-2010 10:39 PM

2 is correct. They have lots of range.

jr_tech 09-27-2010 10:44 PM

Quote:

Originally Posted by Steve McVoy (Post 2983682)
2 is correct. They have lots of range.

Cool! :yes:

jr

holmesuser01 09-28-2010 09:03 AM

I can see this set running in its original setting... People watching the fights, or some other sports events, or maybe watching Gleason's variety shows. How Sweet It Is!!

Keeping my fingers crossed here, too. My DuMont RA113 is rallying for you, too.

M3-SRT8 09-28-2010 09:49 AM

Quote:

Originally Posted by tvdude1 (Post 2983664)
Hey Lee , count me in for the ride to pick it up.

Yes, Sir, Henri. That's a Four.

Lee:smoke:

andy 09-28-2010 10:12 AM

...

ChuckA 09-28-2010 02:38 PM

Quote:

Originally Posted by M3-SRT8 (Post 2983656)
Yup...I'm going for it.

LJB:smoke:

Hey Lee,

Would you still drive up for it, if you don't win the auction.......


Chuck


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