MTR 5b quit working… Probably too much pwr.

Store Forums QRP Transceivers MTR 5b quit working… Probably too much pwr.

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  • #3147
    Steve
    Participant

    Hi,
    I was going to use an 8 pack of Double A batteries to power my new MTR 5b. The voltage showed 12.7 volts. Radio seemed to not like this power, then after cycling power switch off and back on again, screen lights but no text shows. Radio beeps and acts OK, but no text. Now what?

    Worried and concerned,

    Steve

    #3149
    QRPME
    Participant

    Steve,
    If you have the means, you might try removing the two side screws, knurled nuts over phone and key jack and separate bottom cover. Remove the battery for 60 seconds. Put it all back together and set the cw vox back to 300ms our so. If that doesn’t work you may have fried the display? 12 volts max i believe.

    #3151
    Steve
    Participant

    AWESOME! The radio lives!

    I opened the radio, pulled the battery, let it sit for a few minutes the tried it again with a 9 volt battery. Everything was golden and the sweet little 5b was alive again.

    73

    Steve

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