I got a stove at the Dorset steam Fare. It's a Primus 107, dated AB. It has a strange burner. It's a tube silent, with a starnge windsheild, and a valve right at the bottom of the riser tube, near the tank.

I tried it on kero, but it was yellow. Could it be a spiritbranner?

I don't have my spiritbrannare in front of me, but it sounds much like mine. It's a single tube riser (ie, not the "U"-curved tubes of the conventional burners).
The adjustable valve is indeed at the base of the riser tube. The burner basket is fairly shallow.
On mine, the burner dome assembly is in three parts. There is a conventional outer dome, but the small bottom flange is flattened on opposite sides. This allows the dome to be set at two tabs on the burner "basket", then twisted so the dome flange is held under the tabs (this good design keeps the outer dome firmly on the stove).
The inner dome assembly is in two parts; an inner dome, and a tube that fits into it.
How does this compare?

The domes aere missing. I tried it with my russian Prinmus domes, which are from a simular burner. Sounds exactly like yours.

I'll try it with meths.

The riser tube could be described as "fat"; probably to accomodate the valve. I would think the conventional domes would work. Does it have the "tabs" punched out from the burner basket? That's actually a clever improvement; you'd file down the dome flange on opposite sides to fit between the tabs, then twist the dome to secure. Don't think the outer dome would fit down well otherwise.
As I recall, the jet hole is noticeably larger than a kero jet.
Look forward to your report!

It is a spiritbranner. It worked on meths with a russian primus inner cap and a SVEA 5 outer cap. It burned with a ghostly blue flame, and made alot of noise for a silent. Looks like you're not alone woth the spiritbranner...

Seems like many, if not in fact most, silent burner stoves one sees on EBay are missing the burner domes, or at the least the outer dome. Most of these the seller will describe as "complete" or "appears complete".
This design has always puzzled me. I know, I know, only a collector and fanatic could bother to muse about the design virtues and defects of things that are no longer made, but, heck, we qualify on both counts.
The plethora of loseable bits on a 96 we've often talked about, but the dome situation is universal on the kero silents. It just never made any sense. When I found the Spiritbrannare, I was impressed by the simple solution to this problem: just two tabs punched up out of the burner basket (or whatever it's called); file the dome flange flat on opposite sides; fit and twist. The dome can't fall off. I wonder why this simple system was never used on conventional silent burner assemblies.
It's a good example of conservative design. The product was enormously successful; why change it? But as Peter has pointed out, the manufacturers made many variants and touted "improvements"; yet this problem wasn't addressed (except on this meths burner).
But when the end came for these designs, it came fast. I am second to none in love of the beauty combined with function of the brass classics. Somehow the Northmen have a genius for design of functional items of all kinds. But while a Coleman suitcase can never compare in beauty, they've been making them for camping and "power out" use for 80 years, and my guess is they'll still be selling them for a long time to come...the burners are always still there!

Great! I love the friendly upmanship of collecting. Looks like adi and I are on top right now! Anybody else have this unique rarity, this epitome of the stovemaker's art? ; )

My Russian Primus has three tabs. Since it's a Phoebus clone, i think the Phoebus has tabs too.

Well, Ed, i think we'v discovered a new burner (or at least two existing examples of it).

I wander, does the spiritbranner have a stove, or is it an extra. My stove is a Primus 107. I'v never heard of it. Maybe the 107 is a spiritbranner stove. Or, maybe there is a varient of the 100 that's a spiritbranner.

Or, it could just be an extra, without it's own stove.

How old is yours?

Actually, the Primus No. 107 (and its larger 3 pint cousin, the No. 109) was a kerosene stove, introduced around 1930. It had the same type of straight canal burner (No. 4047) as the No. 110 stove/heater, with a cleaner for the fuel jet built into the central rising stem (the regulating tap at the bottom of the stem). The priming cup sported its own draft shield. If you spend a little time in the catalogues on this site you'll find your stove in the general Primus/Condrup catalogue No. 362, the 1948 catalogue (and in the parts catalogue as well). By the late '40's, the No. 107 was discontinued and replaced by the No. 15 (which incorporated the cleaning device in the (standard tube type) burner rather than below it in the riser tube.

My burner is definitely not the 4047; adi, does yours look like that It is also not the 3025 methsburner shown in one of the catalogues, but it is similar. Mine has a slightly shallower "basket", and the valve and knob is on the lower left side of the riser tube, not the upper right side. It has a "new style" clean and close knob, like one on an 8R. And again, it has a large jet aperture.

Yeah, the Phoebus 625 has tabs to hold the outer burner cup. I've also got a newer Optimus 45 that has them.
....Arch

I agree with Peter. I've got a couple of example here & have had a 107 in the past. I'm looking for the burner caps though!
Adi - maybe the jet is so badly worn on your burner that it now runs better on alchohol than paraffin - the symptoms would suggest so.
I'm using a Primus 535 at the moment with kero burners. A while back I sold the alcohol version. This had conventional burner caps but no U tubes. The body of the burner was a block of brass - maybe better heat conducting for better priming. I never tried it as I was selling it "NIB - New In Box"

It has a shallow backet, a valve which might have had a pricker, a huge nut-shaped jet and two tabs for the domes.

(?)

Those features also fit the description of the kero burner me & Peter are refering to on the 107 & others - windshield, control valve, cleaning needle, burner caps, nut-shaped jet etc.

The page shown is from the Primus catalogue & parts section. I'm looking forward to you guys being able to find this stuff more easily!

The burner basket on my burner is a lot shorter, making it look squashed.

Maybe the spiritbranner is a modefication of the normal 107 burner?

I know one of the domestic stoves has the tabs as well . I think it could be a Companion. The first time I was taking it off I had a buggar of a time pulling it up until I realised I had to twist it first. Then it come off easy. Albert

Handi Albert

I haven't seen adi's, of course, but when he describes the burner basket looking like it's "squashed", that fits mine to a T. The appearance is nothing like that of the burner of the 107 shown in the drawing, which I looked at yesterday after Peter's post.
Here's another description of mine, that adi can compare:
In cross-section, the burner basket is very shallow; far more so than on any other burner I've seen. It is shallower than the 3025 spiritbrannare, definitely.
There are the tabs (interesting to here that later 45s had these).
The riser tube is fat, almost squat. The clean/close valve is offset to the left, integral of course to the fat tube, and at the bottom of the riser. It's part of the burner, not of a lower assembly as I interpret the 107 drawing.
The burner shown on the 107 looks nothing at all like it. The 3025 is closest, but as I have said, the valve on that is at the top right, and the basket is a little deeper.
Guess we'll both have to figure out how to post some pix.

Her's a pic of it. I'm not sure how this compares to yours, but the basket is cirtenly shorther than my russian Primus.

That looks like the one I had on my 107 & 110. The 110 has a conventional silent burner on it now so I can use it. I'll not be able to dig the old burner out until Sunday night but I will post a picture with some measurements Sun/Mon.

This is wholly different than mine; I think it is indeed the burner shown in the 107 drawings. It includes the curious windshield.
I've used the term "burner basket" to describe what domes or flame spreaders rest on. In the case of 96s and conventional 100s, this is what you drop on the "lipstick" riser tube; then you put the flame spreader on it. Thus the "basket" of your stove is more or less conventional in shape. Moreover, the riser tube is not especially fat.
In my spiritbrannare, imagine a cross section cut through the riser tube and basket, which are an integral unit on which the domes would be placed. This cross-section would form a very flat Y, a good deal flatter than that capital letter I just typed, but with equally straight sides.
Of course, it is I who dubbed mine a spiritbrannare, because the 3025 of that name is so close, closer than anything else, but not exact. An it does work with meths. But it hasn't yet been identified by a catalogue or parts picture.
It's time for me to start really working with my virtually unused digital camera and figuring out how to send the pix.