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H511 Consoltone Ch= 5H01

H511 Consoltone Ch= 5H01; Zenith Radio Corp.; (ID = 121343) Radio
H511 Consoltone Ch= 5H01; Zenith Radio Corp.; (ID = 239805) Radio
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H511 Consoltone Ch= 5H01; Zenith Radio Corp.; (ID = 1206639) Radio
Zenith Radio Corp.;: H511 Consoltone Ch= 5H01 [Radio] ID = 1206639 933x687
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For model H511 Consoltone Ch= 5H01, Zenith Radio Corp.; Chicago, IL:
Ebay User the-radio-vintage Item 280851927820
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
Chicago Radio Lab
Year: 1951 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 5: 12BE6 12BA6 12AT6 50C5 or 50L6GT 35W4
Main principle Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast only (MW).
Power type and voltage AC/DC-set / 117 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch
Power out
from Model: H511 Consoltone Ch= 5H01 - Zenith Radio Corp.; Chicago,
Material Bakelite case
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Dimensions (WHD) 350 x 170 x 150 mm / 13.8 x 6.7 x 5.9 inch
Notes color: shades of brown.
Net weight (2.2 lb = 1 kg) 2.3 kg / 5 lb 1.1 oz (5.066 lb)
External source of data Ernst Erb
Source of data The Radio Collector's Directory and Price Guide 1921 - 1965
Circuit diagram reference Rider's Perpetual, Volume 22, covering 1951
Mentioned in Collector's Guide to Antique Radios 4. Edition
Literature/Schematics (1) Beitman Radio Diagrams, Vol. 11, 1951
Literature/Schematics (2) Table Top Radios Vol. 1 Stein 98 (page 175.)

All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4254 models, 3878 with images and 3371 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Zenith Radio Corp.;: H511 Consoltone Ch= 5H01
Threads: 2 | Posts: 11
Hits: 1035     Replies: 5
zenith: H511 w/shortwave
Bart Slager

It looks like this version is an export one. BC and SW. Need for a new model or within bandwith of this one?


Mark Hippenstiel

Hallo Bart,

This would be a new model. Please make an according suggestion, also including the chassis number (this might help in locating a schematic for the model),

Thanks and groet,

Mark Hippenstiel

As a matter of fact, it's not clear this is a H511 altogether. Before creating a doublet, we should have a look at chassis and type information usually available on stickers (cabinet inside, cabinet bottom, chassis).


Bart Slager

Hello Mark, Herewith a picture of the interior. The serial no is 526123....




Mark Hippenstiel

Hi Bart,

it's probably a model 520. I don't think the transformer in your set is original.

Kind regards

Bart Slager

Hello Mark,


I think you are right. Concerning the transformer: its fits so nicely that it looks like a pro ( Zenith?) job..

Thank you for the information.


kind regards


Hits: 7220     Replies: 4
zenith: (Ch=5H01); H511 Consoltone with "Tube Life Saver
Mario Bermejo

Dear Friends:

I was preparing photos of this radio when I noticed this is a special model and not just a regular H511


My exemplar has a "Tube Life Saver" device, which is nothing but a "slo-start" which protects the tubes from the initial current inrush. I believe this is an NTC but of course I have not opened it to take a look. The radio plays fine.

The device is placed within the filament string and it takes this radio aproximately 80 seconds to warm up and play. here is a close up on the label on the back:

Because the device drops aprox. 6V, the tube lineup in this radio is the following: 12BE6   6BA6  12AT6   50L6GT and 35W4This is a view of the chassis showing the device attached to the back and protected by a red metal box:


Now I am sure the chassis is 5H01 because the chassis is stamped as such:

But the question is: shall we upload this as a variant since it has a different tube lineup and a device that the other chassis don't have? None of the schematics we have show the device.





Dave Turner


I recently purchased a Zenith K725 that has the same device and the same label.  Your's is the only other one I have seen.  I'd be curious to learn more about this too.  The red metal box on mine is mounted on the outside of the back panel, and plugs into the chassis when the replacing the back panel.  I'm fairly certain that this device is original from the factory.



Ernst Erb

Dear Mario
This is a very nice looking model, congratulations.
You have proved that this is an original Zenith H-511 Consoltone with the chassis 5H01 in a very good way. I looked at the other pictures and to me it is obvious that this is an interesting variant.

The right way is now two things - I first wrote - see below. But fortunate I was going to see Zenith H511 a bit closer and here we have the model already as H511Y - with the same device and color. The suffix is normally the color. I don't know at this point if there is also an H-511Y without somewhere - if yes, my notes below are just right. So let's wait some days for a better answer - I change this to a question. If we don't find an "ordinary" H-511 (with Y as color) then you just add the pictures and write to the notes of the existing H-511Y. We also carry the general model H-511 for guests and members who not know about the suffixes because the model often does not show the letter. It might be that in principle the 50C5 is for a model without device and the 50L6GT for one with. If that is the case we would have to extend the H-511's as shown below generally.

Slusser (7) shows only H-511 and H-511W. No details. 

Please enter this as new model H-511Y and put in your tubes. You give exactly the same name and chassis as the existing BUT you add Tube Saver to the field "Variant".

In the notes you describe a little bit the difference (in tubes, back wall etc.), also referring to the "ordinary model". Later you load up your pictures to it. You have heard from Dave Turner that the "Tube Saver" model is rather seldom and you can also enter the fact as such to the model.

Most important is now that you do a model change on the existing model.
This should also get an information in the field "Variant". You could for instance write "ordinary". This shows that there must be "something else"!

Then it would be good to fill in a text to the notes explaining about the other variant, the "Tube Saver".

At this point I would like to ask Dave Turner if he can do the same with the Zenith K725 (this seems to be without dash?). Dear Dave you could also write that there is an other example for the Zenith model H-511. Mario could do the same vice versa. When looking at the picture with the original writing on the bottom I see that Zenith called it H-511, not H511. Please use this since nowadays the SEs like Google do recognize something with a dash as being with or without dash or space. Therefore we enter only H-511 without (H511) or so!

All this helps making us to be a real reference work, helping all collectors. You have to know that this device does help in normal cases but if a child or adult switches it off and on again within a minute the device will not help much since it is still warm. So don't do that for a test.

Dave Turner

Ernst and Mario,    I have added the "Tube Saver" information to the K725 model as you had requested, with the reference to this H511.  Hope what I did was the way you requested it?

Thanks for the guidance.


Mario Bermejo

Thank you very much for the responses. Here is another picture I should have posted earlier, sorry that I didn't:


Unfortunately, the label is entirely gone and what you see are just some glue residues, however, we still have that stamping that reads "MODEL H511". I have examined it very closely and it doesn't look like there was something next to the H511, shall we still upload this as a variant of the H511Y? I will wait a few more days and, if no new information comes up, will do as Ernst says. Thank you!



Zenith Radio Corp.;: H511 Consoltone Ch= 5H01
End of forum contributions about this model