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- Опубліковано 28 вер 2024
- Weston AC Voltmeter Model 904 and Sensitive Research Instrument Co. DC Microammeter Model S.
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Hey Eric, You might make some money off that hair, looks like silver wire :^) Great Video! I think that box would be good for an old home brew receiver or something along those lines. At 22:18 I would be tempted to drop a TO-3 in that hole, looks like it was made to fit.
Mr Carlson's Lab I considered that too, but won't be able to test that theory since I have since tossed out the bakelite form. But there's no way it could be for a TO-3 package, since the meter was made just mere months after Bell Labs' first transistor. The hole would be extra space for the bottom parts of the meter movement. I don't think the complete shape of the hole was needed for this particular movement, but for older movement generations, there would be two posts poking down to support the pivot balance parts. Those posts would have fit into the narrow corners of the hole.
Why not use apoxy on the wire? Have you tried pre tinning when you soldered?
I found two references to Leo Debien (name on calibration label). Google: "leo debien" Erie Ordnance. Apparently he was an employee of the Erie Ordnance Depot, Ohio. The references refer to his completing a basic electronics course at Fort Monmouth, New Jersey (Sandusky Register March 23, 1956) and a several week launcher control repair course at the Redstone Arsenal, Huntsville, Alabama (Sandusky Register October 31, 1956). If I have the right guy he may have been born in 1932.
Cheers,
Mark
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Mark Beeunas Thank you for that detective work. It really helps to put some meaning behind the name.
Excellent quality that does not exist today.
At 21:11 a little fiber is seen sticking out from the coil. Is it a wire or maybe just an errant nose hair? Cheers, Mark
Mark Beeunas That little wire is from the coil after my attempt to connect to it.
everyone is saying on these old instruments, that if the coil is cooked they cant be repaired. rosie the riveter must have had a magic wand to build them.
dear sir , do you have any idea if one of the "clocksprings" in the needle setup is missing or heavy damaged what can we do? replace it maybe what with what? thank you
Incredibly beautiful and well made instruments .. thanks for these vids.
Boy I wish I had one of them
5/6 ohm