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  1. T

    Telefonbau & Normalzeit master clock connection problem

    And thank you to those who replied. :)
  2. T

    Telefonbau & Normalzeit master clock connection problem

    Well, it's working! While I had the bakelite back plate out of the case for testing, I discovered by accident that if I held the plate vertical, the connection from N to + failed, but if I tilted it back to horizontal it connected fine! It's not a fault I would have thought of looking for. I...
  3. T

    Telefonbau & Normalzeit master clock connection problem

    Yes the bridge connectors at the bottom are both closed and I have tested them with a meter. It's paradoxical because everything is connecting exactly as it is built, but it seems it isn't built to do what it's supposed to do. I know that sounds nonsensical, but I can see no way that a reverse...
  4. T

    Telefonbau & Normalzeit master clock connection problem

    Pin 1 in your photo connects to the "U" terminal. Pin 2 connects to the negative terminal on the power supply input. Both connections are fine, and to verify the power input, the automatic winding mechanism works perfectly. I was assuming that the slave clocks connect to the "N" and "U"...
  5. T

    Telefonbau & Normalzeit master clock connection problem

    I have recently fitted a rotary switch to my T&N master clock, to enable it to operate slave clocks, however it doesn't provide a reverse polarity each alternate minute as it is supposed to. It connects well one minute but the alternate minutes have no power. The paradox is when the toggle on...
  6. T

    Junghans Exacta floating balance wire

    OK thank you for your advice. I'll need to convert to metric of course. I'll see what I can find. :)
  7. T

    Junghans Exacta floating balance wire

    I have just acquired a Junghans 8 day striking mantel clock with a broken floating balance wire. The movement type number is W274/210. Does anyone happen to know the exact thickness of spring steel wire this clock requires?
  8. T

    Problems getting really small drills to spin straight

    Thank you to all who have replied to me in this thread. :)
  9. T

    Problems getting really small drills to spin straight

    Would you or anyone on this site know if there are services here in the UK that would be able to carry out this work?
  10. T

    Problems getting really small drills to spin straight

    I am using a Silverline pillar drill to try and drill into the end of a pallet arbor. I do not possess a lathe. The problems are (a) the drill bit is difficult to secure in the pinvice straight, partly due to the fact that the pinvice has four gripping surfaces. Three would be better to hold the...
  11. T

    Dials: Stripping off old worn silvering.

    I didn't think it was necessary to upload photos for a simple "how to" question. I just wondered if there was a quick way to strip old worn silvering that doesn't involve hard laborious scrubbing with steel wool and metal cleaner.
  12. T

    Dials: Stripping off old worn silvering.

    I have a nice Urgos Whittington chime clock, but the dial is rather worn. It seems the dial plate is brass which has been silvered over. I rather like the idea of stripping off the rather worn silvering and polishing the bare brass dial. How is the silvering most easily removed? I've been trying...
  13. T

    Secticon movement

    I have just acquired this one a couple of days ago. The motor spins perfectly but it does not mesh properly with the escape wheel. I'm wondering if the black edge has worn slightly. If so, is there anything I can paint onto it to improve the grip? Here's a video:
  14. T

    Molnija balance wheel problem

    Actually now I remember, I transferred the balance complete with bridge and hairspring, so the top pivot is the one that went with that balance. Even slackening the top screw a tiny amount makes the balance wobble loosely. Tightening the screw slightly makes it stiff. there is no Goldilocks...
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    Molnija balance wheel problem

    Yes Mark I'd need to check the top pivot carefully too. I don't have much chance to work at stuff at the moment but I hope to get onto it soon. Removing jewels though, that might be beyond my equipment for the time being. Thank you again for your advice.
  16. T

    Molnija balance wheel problem

    If I unscrew the bridge a little, the pivot escapes from the top jewel and the balance wobbles as if broken. If I tighten the screw again the balance is stiff again as in the video. My suspicion is that the lower pivot is very slightly thicker than the original. Perhaps in the time between my...
  17. T

    Molnija balance wheel problem

    Today I transferred a balance wheel from a scrap Molnija movement to the one in my Kasli iron "Mistress of Copper Mountain" clock. The old balance had a broken pivot at the top end, so I transferred the new balance complete with bridge, verifying that both pivots were good. The movements were of...
  18. T

    T&N master clock

    OK thanks again. Does anyone know of a spares outlet where parts for these clocks may be obtained? It would be nice to get the slave controller part working, because some day I fancy buying one of those big square T&N "Klappzahlenuhren" with the flip calendar.
  19. T

    T&N master clock

    OK eskmill, thank you for your reply. First, I bought that Brillie clock with a contact missing, now this one! It seems that someone has had trouble with these components and ripped them out. I can see a slightly dark patch on the backplate of my clock where this part has been removed. All I...
  20. T

    T&N master clock

    I have acquired this magificent metal cased Vienna regulator style master clock. Mechanically it is working and winds itself up without any problem. However I don't know how to wire a slave clock to it. I presume the slave will wire up to the connections marked N and U (Nebenuhr). However I...
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