Old Leeds & Northrup Galvanometer: Help With Model Number, Please

Discussion in 'Antique Discussion' started by wlwhittier, Oct 31, 2024 at 2:17 PM.

  1. wlwhittier

    wlwhittier Well-Known Member

    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: Cat. No. P1-24-C.SYS, Coil Res 250 Ohms.
    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'!

    P1420696.jpeg P1420703.jpeg P1420697.jpeg P1420694.jpeg P1420701.jpeg P1420695.jpeg
     
    wlwhittier, Oct 31, 2024 at 2:17 PM
    #1 + Quote Reply
    NewEngland likes this.
  2. Kronos

    Kronos Well-Known Member

    Kronos, Oct 31, 2024 at 3:06 PM
    #2 + Quote Reply
    NewEngland, moreotherstuff, Marote and 1 other person like this.
  3. terry5732

    terry5732 Well-Known Member

    USPS 'express mail' began in 1970
    Funny this doesn't have zip code
     
    terry5732, Oct 31, 2024 at 3:15 PM
    #3 + Quote Reply
    Marote likes this.
  4. wlwhittier

    wlwhittier Well-Known Member

    My sincere gratitude Kronos...Thank you!
     
    wlwhittier, Oct 31, 2024 at 3:18 PM
    #4 + Quote Reply
    Marote likes this.
Draft saved Draft deleted

Share This Page