Optimus bought the division of consumer pressure fuel products from Lux in 1917 but it was a 5 year overlap before all Lux branding was gone from...
Wasbenzine is the primary designed fuel for all Whisperlite versions but it is designed to work with petroleum type lampenolie(not eco- bio-...
You know for sure that a Lux stove is old as Optimus aquired the whole range of Lux consumer kerosene products in 1917 and either discontinued or...
The flame size indicates full flow through the jet but the direction is clearly off center - it may be caused a worn hole or damaged jet top or a...
Burning fine until being clogged in the middle of cooking sounds like a dirty filter - the modern Primus and Optimus multifuel stoves has a filter...
Aspen 4 as it should be in a Radius 42.
Late update but I made some more tests last year. At first testing jet from a nicely burning Optimus 8 - better but not good - jet and bell from...
Essentially a standard Optimus Hiker+(last 111 with Nova burner) in a larger and sturdier box - made to use white gas, kerosene, jet fuel or...
Zavod "Shtamp" Imeni Vannikova, SSSR, G. Tula, 1970 G. "Rekord-1" Zavod=factory, "trademark", Tula is the city and 1970 G(God=year) is when it was...
That makes some sense - Radius 46 was somewhat state of art right before Optimus 8 appeared and the needle mechanism was under the patent known...
It was made in 1953 - the number on top seem to be located within a marking I don't recognise, it may be related to the import/customs handling at...
Burner looks like Radius 46 with shortened fuel pipe - SRV looks like early Optimus and filler cap design indicates Optimus well before 8 appeared.
It looks quite 1950's-ish so it would be likely to have a centered circle underside with a 2-letter year code, first letter A and an additional...
@Branny75 that style of cap came on the first Radius stoves with SRV in the filler cap - circa 1933-34 followed by a similar without wings before...
I think the description indicates wrong or worn jet with a considerably larger hole than the intended 0.32mm.
Primus still had full cyrillic markings in 1937 but I think it would be unappropriate after 1947. Optimus went to marking burners "Optimus-Primus"...
I think the decal remains looks like a heraldic lion in upright position on a heraldic shield - indicating the brand may be Lion?
There need to be a by-pass outside the central valve part of the diaphragm to ensure not building pressure that interfere with with the release...
There were a few different Radius caps with similar general design of the SRV - different heigth and threads. The spring and spring holder must...
I have seen numerous old Primus with that sort of nut - I guess it was a way to cut production costs.
Separate names with a comma.
