Hi, You will have seen the Post, reporting the remarkable fettle carried out by Gary: https://classiccampstoves.com/threads/11089 Several weeks ago I had the great privilege of road-testing one of these Silent Dampers for a No.96 stove. Here are some photos of the damper in use on a 1937 Primus No.96: I then tried the same silent damper on an Optimus No.96, with equally impressive results. Here I am trying out the low-power performance and carrying out the "Kerophile Turkish Coffee Test" ...(successfully): As you can see the silent damper performs impeccably at all power settings. I never thought I would ever have the opportunity to run my No.96 stoves with a silent damper. Gary is to be congratulated on a truly impressive design, build, and operate fettle. Many Thanks, Best Regards, Kerophile.
Hi Kerophile, Truely an impressive fettle by BernieDawg for sure . I'm curious why Primus or Optimus never made a silencer for their 96's ? Tom
Hi Tom, They did - but they are as rare as hen's teeth. One went on ebay a few months ago. I thought we had a picture of it in the reference gallery but couldn't find it. Also I think one of the Primus catalogues show it. Cheers, Graham.
Hi 4xBom, I looked over most of the catalogues for them ,but I can't seem to find them listed anywhere with the 96's - of course the Primus #100 has a silencer option , but darn if I can find the 96's , please post link to them , love to see them Tom
I'm not sure there's one shown in the catalogues on the site but it was optional part no:4200 according to the No:2907 catalogue from 1931. This will be added eventually.
Hi Ross, Thanks for confirming - I was beginning to think I was going mad. However I did eventually find one reference in the French Primus catalogue contributed by Kerophile at the following link: French Primus Catalogue Check out page 4 - it refers to part No. 4065 (different to Ross's reference above?) as a silencer for a 96. Note also in the spares section at the end it also refers to two parts for each of the lipstick burner components - one for the 96/97 and one for the 100 type stoves. Again 4065 is referenced against the picture of the silencer, alongside the more familiar 4005 part number for the 100 silencer. Cheers, Graham.
Hi all, 4Bom , thanks for the links your are indeed correct, I just looked in the wrong sections in the catalogues - Tom
The French just have to be different. The numbers below are in 2 different catalogues - these are a 2 piece affair. Maybe the French was a single piece?
First off, allow me to say how flattered I am that you all like the silent damper fettle so much. Your comments are more than kind. Thank you very much. Most of the fettles have come about because I lacked this or that a part. This one is the same in that I really think it's unlikely I'll lay my hands on a real Primus 96 silent damper. Some say that necessity is the mother of invention. In my experience, I'm compelled to report that's it's more like desperation is the mother of invention. Bryan Miller (kaw550red) recently sold a Primus 96 on eBay with a silent damper. I'm hoping he will not mind if I post this picture of it without getting his permission first. I'm sure the mods can strike it if I have overstepped my bounds. Apologies in advance if I've goofed up. Apparently the original Primus 96 caps had three rows of holes. My caps were made with 4 rows of holes and are a bit taller to accommodate the holes and a "mixing chamber" above the top of the inner cap. There's no science there in that decision, just serendipity. Thanks again! Cheers, Gary
Hi all, Gary, thanks for the pic from Bryan - seeing is believing Ross, just curious , but what is a "lid for silencer" part #4006 and what is "Primus-Metal" ? Tom
Hi Tom, here is a link to one of the forms of Silent damper for a Primus No.100.It is very similar to the ones shown by Ross in the catalogue entries: https://classiccampstoves.com/posts/29706 Here is a link which shows the final form of silent damper which was produced in the early 1960s : https://classiccampstoves.com/threads/5879 Primus "Special Metal" was/is a steel alloy used to make burner caps. Its composition was chosen to exhibit better oxidation-resistance that plain carbon steels. Before the introduction of the "Primus Special metal", brass was commonly used to make silent burner caps. The new special metal caps were more expensive than the brass ones when they were first introduced, and both types were available. Best Regards, Kerophile.
Hi Kerophile and all, Thanks Kero for the links.Obviously I need to do my homework better . The "primus-metal" is interesting - metallurgy and all wise. I suspect there's a ton of data and info behind that story Tom
