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Multimeter Problem.

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Please help. I have a second hand P.O. meter no 12 C/1. It is a moving coil meter. It reads o.k. on Volts but under reads on Ohms. The zeroing pot does not seem to work. A label inside states that it has thick film components. Why won't it read Ohms accurately? Can it be repaired.

Thanks,

Z.

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    mapj1: 
     

    Well Taylor Electrical Instruments Ltd of Slough was taken over by AVO Ltd. in 1958 , long before thunderbirds were go,  so your post  office meter must go back  a bit - perhaps you are older than you look ? if it predates  that merger.  more here 

     

     

    Nope, I look older than I am. I've ‘ad a ’ard life guv!

    Gissus the price ovva cuppa tea Guv.

    Z.

Reply
  • 0

    mapj1: 
     

    Well Taylor Electrical Instruments Ltd of Slough was taken over by AVO Ltd. in 1958 , long before thunderbirds were go,  so your post  office meter must go back  a bit - perhaps you are older than you look ? if it predates  that merger.  more here 

     

     

    Nope, I look older than I am. I've ‘ad a ’ard life guv!

    Gissus the price ovva cuppa tea Guv.

    Z.

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