@@jefffefferson8339old car batteries contain lead. Old military compasses used radium to illuminate the dial, and radium is dangerously radioactive. Lead blocks that radioactivity.
having a 3 year old FB degree model, i now know how the SAS & SBS are so good at old school land nav. With a good pace count and this tool you cant go wrong, my old and new SandY H3 while good cannot match the FB. all WWII AND KOREA luminous devices can be dangerous. collectors be warned even w/o the map, with your pace and bearings, a good S2 could take your capture point and back shoot your SP. Just use a map with no marks, no notes, ect.
Here because of Grandpa's T. G. Co. LTD LONDON N2B 1943 MK III Prismatic Marching Compass. With its Mother of Pearl dial and robust, precisely engineered brass housing, it's a thing of beauty. Now cleaned and resealed with Loctite 5980 and filled with baby oil, it's back to its former glory. Works like a charm! To think they made these things during the Second World War... These days, we panic about a flu virus that was always there, and then struggle to make and distribute a bit of fabric with some elastic attached. We've all gone soft.
how did your take it apart? any radiation detected per radium paint? why not putrefied kerosene? not knocking your work, just curious. it is great to have something used by granddad!
I just unscrewed it all. The sealant had deteriorated and the fluid had leaked out at some point. I let the new sealant fix for three days and then just squirted the oil in through the hole and screwed in the plug while it was overflowing. Just the tiniest bubble remains. I chose baby oil because I wanted more of a damping effect. I use it in very hot climates, so it's not so viscous then. So in cold climates it settles rather slowly, but it's still perfectly usable. And who needs to rush around when you've got a good plan and several fallbacks? 😉 No radiation. Well, about a thousand times less than an hour under the sun at 20.000000, 25.000000
Pretty sure the Magnetic Bearing to Gun Position (GP) should be 56 1/2 degrees magnetic. Because the 57 1/2 degree bearing was a Grid Bearing.
Grid to mag add. Mag to grid get rid.
@@Frodillicus1 thanks bro
LARS left add right subtract
Possible to keep these compasses safely at home in a cage built of old car batteries.
Why would you build a cage out of old car batteries for anything, but why compasses in particular?
@@jefffefferson8339old car batteries contain lead. Old military compasses used radium to illuminate the dial, and radium is dangerously radioactive. Lead blocks that radioactivity.
having a 3 year old FB degree model, i now know how the SAS & SBS are so good at old school land nav. With a good pace count and this tool you cant go wrong, my old and new SandY H3 while good cannot match the FB. all WWII AND KOREA luminous devices can be dangerous. collectors be warned
even w/o the map, with your pace and bearings, a good S2 could take your capture point and back shoot your SP. Just use a map with no marks, no notes, ect.
Here because of Grandpa's T. G. Co. LTD LONDON N2B 1943 MK III Prismatic Marching Compass. With its Mother of Pearl dial and robust, precisely engineered brass housing, it's a thing of beauty. Now cleaned and resealed with Loctite 5980 and filled with baby oil, it's back to its former glory. Works like a charm!
To think they made these things during the Second World War... These days, we panic about a flu virus that was always there, and then struggle to make and distribute a bit of fabric with some elastic attached. We've all gone soft.
how did your take it apart? any radiation detected per radium paint? why not putrefied kerosene? not knocking your work, just curious. it is great to have something used by granddad!
I just unscrewed it all. The sealant had deteriorated and the fluid had leaked out at some point. I let the new sealant fix for three days and then just squirted the oil in through the hole and screwed in the plug while it was overflowing. Just the tiniest bubble remains.
I chose baby oil because I wanted more of a damping effect. I use it in very hot climates, so it's not so viscous then. So in cold climates it settles rather slowly, but it's still perfectly usable. And who needs to rush around when you've got a good plan and several fallbacks? 😉
No radiation. Well, about a thousand times less than an hour under the sun at 20.000000, 25.000000
The marker is atrocious way too big
That’s what we had