Bernie

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  • in reply to: missing BG4000 #5861
    Bernie
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    Craig,

    Have checked transformer and looks like break down of insulation on primary windings. Been warming it in oven and have got reading of 146k up to 249k but that’s as far as it will go. Also found the B80 bridge rectifier was stuffed so have been waiting on components. Have installed new Toroidal transformer in chassis, I kept voltage selector but wired only to work on 240V setting. I have change all the electrolytic capacitors, so making progress slowly.

    in reply to: missing BG4000 #5489
    Bernie
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    Hi Craig,

    Found the original post and there is a lot in there to go through. Had pulled the transformer and get

    Primary,

    B – G 148k, B – Y 44.5ohms, G – Y 148k, R – W 45.6ohms, Y – W 146k, R – B 146k, R – G 98K

    Secondary,

    Y – Y 2.7, B – B 2.7, R – R 1.12k

    Looks to me like there is a short between the 2 primary windings

    in reply to: missing BG4000 #5320
    Bernie
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    Thanks Craig,

    I had a problem not been able to find the regulator down here in New Zealand, spent ages trying to find an equivalents table but no luck. Eventually found BA06BC0T, don’t know what the difference is but specs look the same. Just wanted to double check on the neon, I never liked mains voltage on low voltage PBCB’s. When the transformer turns up in 6 days will get into it, it will be good to get it working again after 10 years.

     

    in reply to: missing BG4000 #5184
    Bernie
    BRONZE Member
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    Hi,

    Reading this with interest as looks like my transformer has failed, keeps blowing fuses on connecting power. Could you post a complete list of parts, and clarify what you did with GL90, on one post it looks like you connected it direct to mains and on another its disconnected.

    Thanks

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