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  1. Berry Greene

    Post your quartz clock matters here

    I like to call it an electronic balance because it has a (solid state) transistor but is NOT a quartz. Nor is it an "electric" balance. Its a resonant motor in the sense that it provides the power to drive the train and pointers but unlike a normal mechanical balance that absorbs power - this...
  2. Berry Greene

    Seiko Mickey Mouse quartz watch

    Hiya! For a lasting repair a replacement movement is usually the only reliable way. Very near the top of my list of advice is to take static precautions when you open up a quartz. You had better believe it can amount to 1000's of volts and will damage the silicon chip crystal. Yes, yes, I...
  3. Berry Greene

    Post your quartz clock matters here

    Hello Les. How did you get on? I am waiting to hear! What an interesting movement. It looks to me as if the there is no rack to count the strikes but I do see a rotary switch with increasing lengths of printed contact. That's very likely to be the equivalent of a mechanical counting wheel with...
  4. Berry Greene

    Post your quartz clock matters here

    This is addressed to both sections of your post. I bought some silicone oil and have started to use it on troublesome movements of the cheaper quartz variety to great effect. Thanks. One exception of particular satisfaction is an older C1970 Smiths electronic balance. The type with the resonant...
  5. Berry Greene

    Clockmakers Hall of Shame

    That's nailed the problem!
  6. Berry Greene

    Post your quartz clock matters here

    That's such a useful yet not so obvious tip. Thank you sir!
  7. Berry Greene

    Cuckoo clock chain length

    Suddenly I have two QQ clocks both gifted to me. I've got them going surprisingly well but 22.5 hours duration isn't enough! I keep forgetting and I have no latitude. The weight is on the floor AGAIN! Does that trick really solve this silly problem of needing to live in a castle to get the...
  8. Berry Greene

    French Mantle Clock

    Yes that is in line with my own thinking and that of another interested party exactly. I think its the original movement as its fitted so snugly. The case is slabbed and veneered. Inside the space has bored out as a circular tunnel by some large lathe I should think. There is a space for the...
  9. Berry Greene

    French Mantle Clock

    I have hear yet another similar movement. French made "Marque Deposee" serial 6551 - 48 where again I believe 48 refers to the pendulum length. It has a heavy oak veneered wooden mantle case. The movement - which I believe is sometimes called a drumhead , is patterned along the same lines as...
  10. Berry Greene

    Post your quartz clock matters here

    Nice clock; Nice project. Martin has covered the ground. If you can make sure the mechanics will work and you have an electronic fault, it might help a little to identify the crystal frequency. I'm betting 4Mhz (by looking at your pictures), in which case you can probably source a replacement...
  11. Berry Greene

    Clockmakers Hall of Shame

    I think its an excellent thread too Shutterbug. There's a huge amount to be learnt here and maybe even impart. I read Bruce Alexander again just back there and I am following in his wake when I look at the path he trod. I'm at that point where yes I often know the preferred way forward and then...
  12. Berry Greene

    Clockmakers Hall of Shame

    It looks as though a piece has been let in but how come one tooth is reversed. That's weird. Big lumps of solder could have been brushed off while still molten That's ugly!
  13. Berry Greene

    Clockmakers Hall of Shame

    Bruce - No arguments from me on anything you said on either topic. I'm here to learn not pronounce at all. In any case one never knows the pressures that applied at the moment. Its easier to take up a definite position - if you can afford to, - or are highly principled. That's not always quite...
  14. Berry Greene

    Clockmakers Hall of Shame

    Jimmy Oz has a good point. A specific idiosyncratic ID makes sense. Bruce A. It seems to me that all history is so dark in places that we have a need to gloss over much of it. This obsession with revenge for distant past wrongs isn't very healthy IMHO. Schoolteacher's grandstanding with...
  15. Berry Greene

    Clockmakers Hall of Shame

    Oh Bruce you are making me smile. More of a rant but a good one. I'm here to learn and I have done so. That barrel cap could easily be turned over yeah. Looks more of a doodle than a message to me. Old repair marks can be a fascination if the date can be de-coded. Why's a code needed? Why not a...
  16. Berry Greene

    Rempe self-winding - questions on electrics

    Thanks for the pics. Great help. I think you're right on to this from what you say. It sounds very good. Soldering is a knack that's easy to lose. I did some myself this week. Its a slick art and this modern silver solder is awful! I sometimes use some Bakers Fluid on older parts - even on wire...
  17. Berry Greene

    Rempe self-winding - questions on electrics

    Blimey matee you're more London than meself! I'm from West London and would not go south without me army. Crossing that River Thames was fraught with danger! I moved down to Sussex and escaped to become a member of the farming community and gentlefolk. Moo! I just though I might be able to...
  18. Berry Greene

    Rempe self-winding - questions on electrics

    Fascinating! There I was butting in hoping to help when all the while you're streets ahead of most things I say! No matter I am enjoying this because the issue comes up in one form or another over and over again. The use of DC (Battery) into an inductor or (coil) via a switch (commutator) has...
  19. Berry Greene

    Rempe self-winding - questions on electrics

    Gold offers low resistance contacts and is good for switching low currents such as RF. However, I think your currents and BEMFs will not suit gold which is a soft metal and may well migrate or burn away quite quickly. Any spark suppression is a good idea. However when the spark is entirely...
  20. Berry Greene

    I have a question about the pendulum swinging distance ?

    Thanks for the response SB. We might be OK after all. Clock on test has made 24hrs or so. Not much over-swing that I can detect. The colour of the text has never knowingly caused a problem and I didn't know about that. I'll remember to just stay plain here in the future. Its an overhead to...

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