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Old Leeds & Northrup Galvanometer: Help With Model Number, Please
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<p>[QUOTE="wlwhittier, post: 10016888, member: 76316"]L&N has been sold twice, the last being almost 30 years ago...so not a lot of chance to find archives to interrogate. The sticker seen in pic 5 says: <i>Cat. No. P1-24-C.SYS, Coil Res 250 Ohms.</i></p><p>Footprint is ~4 1/2" X ~2 5/16", weight is ~26 1/2 oz. It has a cardboard box, but it's awfully ratty; pic 4 shows the (loose) box cover. The linen tag in pic 6 says to Telegraph for a new galvanometer in case of 'breakage'...which surely dates it broadly.</p><p>I'm hoping for a link to a site that may be able to help ID the overall unit, an' tell me roughly when it was made.</p><p>Any other comments an' observations will be most welcome...Thanks for lookin'!</p><p><br /></p><p>[ATTACH=full]503081[/ATTACH] [ATTACH=full]503082[/ATTACH] [ATTACH=full]503083[/ATTACH] [ATTACH=full]503084[/ATTACH] [ATTACH=full]503085[/ATTACH] [ATTACH=full]503086[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="wlwhittier, post: 10016888, member: 76316"]L&N has been sold twice, the last being almost 30 years ago...so not a lot of chance to find archives to interrogate. The sticker seen in pic 5 says: [I]Cat. No. P1-24-C.SYS, Coil Res 250 Ohms.[/I] Footprint is ~4 1/2" X ~2 5/16", weight is ~26 1/2 oz. It has a cardboard box, but it's awfully ratty; pic 4 shows the (loose) box cover. The linen tag in pic 6 says to Telegraph for a new galvanometer in case of 'breakage'...which surely dates it broadly. I'm hoping for a link to a site that may be able to help ID the overall unit, an' tell me roughly when it was made. Any other comments an' observations will be most welcome...Thanks for lookin'! [ATTACH=full]503081[/ATTACH] [ATTACH=full]503082[/ATTACH] [ATTACH=full]503083[/ATTACH] [ATTACH=full]503084[/ATTACH] [ATTACH=full]503085[/ATTACH] [ATTACH=full]503086[/ATTACH][/QUOTE]
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Old Leeds & Northrup Galvanometer: Help With Model Number, Please
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