ATO ATO ANTICLIMATIC

Discussion in 'Electric Horology' started by no1bradd, Sep 19, 2018.

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  1. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi Can i get a wiring dia for a ATO ANTICLIMATIC i rewind the coil ,but do have the wiring for the this .
    Thanks Bill

    DSC00245.JPG
     
  2. JTD

    JTD Registered User

    Sep 27, 2005
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    You might do better posting this in the electric horology section, where the electric experts lurk.

    Maybe a moderator will move it for you.

    JTD
     
  3. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi That will be fine Bill
     
  4. etmb61

    etmb61 Registered User
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    Oct 25, 2010
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    Does it have a circuit board under the base?
     
  5. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi No the circuit is on the back .
    Thanks Bill
     
  6. etmb61

    etmb61 Registered User
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    Oct 25, 2010
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    Can we have a peek at it? It could be helpful. I've only worked on the Kundo version but Junghans is probably similar.

    Typically if there is a separate circuit board the coil will connect at two points and the battery at two others. Polarity of the coil is important as it both senses and drives the pendulum.
     
  7. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi There is the model hope you can get a wiring for this .Where does battery goes :???::???:
    Thanks Bill (rewired the coil 40k )

    DSC00248.JPG DSC00247.JPG DSC00246.JPG
     
  8. etmb61

    etmb61 Registered User
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    Oct 25, 2010
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    Here is a link to a similar clock.

    1962 Junghans ATO Electronic Clock

    The schematic linked in the first post looks like what you have. Assuming you have the coil wound like the schematic, the blue wire is the center tap between the two coils, the red wire is the drive coil, and the green wire is the sense coil.

    Can you read the number on the transistor? The older germanium transistors were usually in metal cans like this one from a Seiko clock:
    transistor.jpg
    or glass. Yours looks like a TO-92 (plastic) package so it could be a replacement.

    Eric
     
  9. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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  10. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    The transistor is BC 548B but i still do not have the wiring for the clock ?? were does the battery go :???:?
    Thanks Bill
     
  11. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi ,I got a AC125
    Bill
     
  12. etmb61

    etmb61 Registered User
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    As the circuit was designed, the "+" battery end connects to the red wire from the coil and "-" end connects to the terminal between the transistor and the capacitor.

    Physically, the battery was probably 4 AA cells wired parallel in a paper box mounted in a bracket under the base of the clock.

    Eric
     
  13. KurtinSA

    KurtinSA Registered User
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  14. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    praezis likes this.
  15. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Hi ,Thanks all you have done, i am waiting for the AC 125 to come before i get the clock running .
    Bill
     
  16. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Still won,t go, got a AC125 transistor try it but it still won,t go ANY HELP :???::???:
     
  17. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Got it going at last . Hooray
     
  18. JTD

    JTD Registered User

    Sep 27, 2005
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    I'm happy for you, but are you going to let us know what you did to get it going?

    JTD
     
  19. no1bradd

    no1bradd Registered User

    Apr 24, 2010
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    Rewired the coil
    Thanks Bill
     
  20. JTD

    JTD Registered User

    Sep 27, 2005
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    Well done, and thanks for the information.

    JTD
     

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