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Kenwood TL-922 Fault

Discussion in 'Amateur Radio Amplifiers' started by G3YRO, Oct 17, 2019.

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  1. N8FVJ

    N8FVJ Ham Member QRZ Page

    Buy a low reading watt meter.
  2. KA9JLM

    KA9JLM Ham Member QRZ Page

    Using a foot switch can make hot switching possible, If you get out of sync.

    I normally blame it on the alcohol. :rolleyes:
    KD2ACO likes this.
  3. G3YRO

    G3YRO Ham Member QRZ Page

    Well I have thoroughly examined inside the Amplifier . . . and there is no sign of anything having arced over.

    Also checked the resistors that feed the bias voltage around the zener, and they're spot on. Can't see any faulty components anywhere either.

    So, I'm just thinking this loud bang may have been the safety spark gap arcing . . .

    Anyway, I have cleaned the relays, in case that was the cause of the problem . . . and will start using it again, watching everything carefully !

    Not possible, as the footswitch switches both the Transceiver and the Amplifier to transmit !

    Roger G3YRO
  4. WA4SIX

    WA4SIX Ham Member QRZ Page

    The footswitch could be suspect. Loose connections, or something?
    Or, the footswitch could have been drunk.

    KA9JLM likes this.
  5. AG5CK

    AG5CK Ham Member QRZ Page

    I recommend a Linemaster 636-S dual stage switch. Completely drunk proof.
  6. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Well, if it keeps happening, you could pretend it's 100 years ago and just operate "spark."

    No need for filters in the receiver, the signals are everywhere.:)
  7. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Is that spoken as a true drunk, or just a pretender?:p
    WA7PRC likes this.
  8. AG5CK

    AG5CK Ham Member QRZ Page

    I don't think I'm a true drunk but I do like good scotch....and beer...and wine.
    WA7PRC likes this.
  9. WA7PRC

    WA7PRC Ham Member QRZ Page

    The key is no drinkin' before 5:
    :: hic :: :p
    KD2ACO and AG5CK like this.

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