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 Post subject: Dumont RA 109
PostPosted: Dec Tue 05, 2017 5:55 pm 
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Joined: Oct Thu 23, 2014 5:15 pm
Posts: 45
Anyone here own one? It looks like this: https://www.radiomuseum.org/r/dumont_la ... 109_a.html

I just purchased one of these but have not taken delivery of it yet. It is the Hanover model with no record player. I am sure it weighs a ton! I have a Toyota RAV4 that has removable rear seats so it should fit with no problem. I am thinking about taking the chassis out of the cabinet and maybe the picture tube as well. I would guess the chassis weighs about 50 lbs. but what about the picture tube? Would it be best to remove that as well, or should I leave it tn the cabinet. It looks like it is very securely attached.

Having finished my RCA 8T241 I felt the need to start on another set! The RCA came out great!

What have I done :shock:

Thanks in advance!


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Tue 05, 2017 6:54 pm 
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Location: San Jose, CA USA
Don't own one, but have restored one for someone else. Pulling the chassis will help with total weight. Picture tube is not super heavy, so I'd be inclined to leave it in the cabinet to help protect it (obviously make sure the neck can't contact anything if the cabinet moves around during transport).

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 Post subject: Re: Dumont RA 109
PostPosted: Dec Wed 06, 2017 8:15 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 277
Location: Elkhorn,Wisconsin,United States
Hope your crt is good. I just finished my RA 109 Sherbrooke a few weeks ago. The Sherbrooke has the phonograph. The cabinets are quite heavy, a two person job. I removed the chassis and crt before I transported mine last March. If your dial cords are still OK, just leave them. It's a real pain to restring the TV - FM cord because of the variable pulley diameter. The dial cords on mine were broken.
Good luck, Stuben


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Wed 06, 2017 4:14 pm 
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Joined: Oct Thu 23, 2014 5:15 pm
Posts: 45
Thanks Tom and Ed!

I looked at the set and discovered several things. There is no speaker, there is a tube brightener and it's missing both 5U4G's. Set has been in storage in an unheated barn and have doubts about the CRT. I do not have a tester. I have read they are prone to failure and nearly impossible to find. Would be a real shame to get the thing home and discover the CRT is a dud. Chassis looks good though no rust, just very dusty. Cabinet is fair.

Considering passing on this one.


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Wed 06, 2017 4:15 pm 
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Joined: Oct Thu 23, 2014 5:15 pm
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Your set looks great Ed! Nice picture too! How long did it take you to restore it?


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Thu 07, 2017 1:41 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 277
Location: Elkhorn,Wisconsin,United States
I spent a week on the recap and about two weeks on other repairs my Dumont needed. My set had a broken crt , a missing speaker and missing output transformer. I also needed to repair the phonograph and wind a new RF coil for the AM radio. I purchased a used 19AP4C crt from the ETF. If you don't have to pay alot for the set, you may still want to buy it. I enjoyed repairing the RA-109.
Ed


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Thu 07, 2017 4:27 am 
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Location: San Jose, CA USA
It sounds like your 19AP4 picture tube is probably not in good shape, given that it has a brightener on it. And as you point out, these metal/glass picture tubes are prone to leak failures. That being said, with some persistence you'll be able to find one, most likely by finding another less desirable set with one in it. Quite a few RCA sets from around 1950-51 have that tube, and don't have the same value as the DuMont, so it's no crime to grab a good 19AP4 from one of those sets, and part out the donor set.

On the other hand, if you don't want the trouble of finding a good 19AP4 (or retrofitting an all-glass 19DP4), maybe this isn't the right set to go for. Because these are impressive, elaborate sets, they are a little more work to restore than a lower end set.

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 Post subject: Re: Dumont RA 109
PostPosted: Dec Thu 07, 2017 4:30 am 
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Joined: May Sun 17, 2009 10:08 pm
Posts: 322
Location: Massachusets, 02019
Was that the set on eBay ?


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Thu 07, 2017 7:47 am 
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Joined: May Sun 07, 2017 11:35 am
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The brightener may not be all bad news, back in the 60's I used to see TVs with brighteners fitted, when I fixed the (original) low G2 voltage fault and removed the brightener the tube was still good!

Check out the simple CRT tester in this forum to know for sure.


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Thu 07, 2017 5:15 pm 
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Joined: Oct Thu 23, 2014 5:15 pm
Posts: 45
Thanks for all the feedback!

Yes the set was on ebay for a buy it now price of $130.00. My wife was okay with me spending that on another set but when she saw the size of the thing was not pleased! I contacted the buyer and told him my situation and he was disappointed but very polite and quickly gave me a refund.

I will check out that CRT tester. Thanks for the suggestion!

For now I think I will have to limit myself to table top models. Would love to find a 630TS or an 8TS30 to restore. Perhaps a few good examples will turn up. Being about half way between Boston and N.Y. City I would think there is a good chance.

Here is an 8TS30 near Boston with considerable rust. https://boston.craigslist.org/nos/atq/d ... 55708.html

I do have compressed air and a glass bead blaster so maybe?


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Fri 08, 2017 12:07 am 
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Location: WI 54812
I guess I'm kinda cheap, but that seems like an awful lot of money for a 8TS30 in that rusty condition. And where there's rust there's usually been mice. Otherwise a great looking TV.


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Fri 08, 2017 3:20 am 
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Joined: Oct Thu 23, 2014 5:15 pm
Posts: 45
No Kevin, I think it's way too much money also. Maybe $50.00? If CRT is good a bit more. I wonder if a KCS28 chassis would fit in there? I have one that works fine.


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Fri 08, 2017 3:52 am 
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Joined: May Sun 17, 2009 10:08 pm
Posts: 322
Location: Massachusets, 02019
I live in mass and over 50 clean sets I can moves few you should come to my house


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Fri 08, 2017 4:03 pm 
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Joined: Oct Thu 23, 2014 5:15 pm
Posts: 45
tvdude211, Best idea I've heard yet! I'll send you a p.m.

Thanks!


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 Post subject: Re: Dumont RA 109
PostPosted: Dec Sun 10, 2017 2:04 am 
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Location: Long Island, N.Y.
irob2345 wrote:
The brightener may not be all bad news, back in the 60's I used to see TVs with brighteners fitted, when I fixed the (original) low G2 voltage fault and removed the brightener the tube was still good!.....

I second that! A long-time TV collector/restorer told me the same thing years ago. I've used my 630TS with a brightner for many years now still with a very satisfactory picture.


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