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  1. #1

    Wanted: Manual or circuit diagram of HL90U 432MHz amp

    I have a HL90U amp. It doesnt seem to work reliably suspect the relays. Anyone got a copy of the circuit diagram or manual you could share?
    Thanks
    Maurice G3ZXD

  2. #2
    Active User Contributing Member KD8MJR's Avatar
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    Quote Originally Posted by g3zxd View Post
    I have a HL90U amp. It doesnt seem to work reliably suspect the relays. Anyone got a copy of the circuit diagram or manual you could share?
    Thanks
    Maurice G3ZXD
    Hi Maurice

    Sorry but I do not have that in my collection. Do you know what finals it uses? It might be an updated version of another older amp and have a similar circuit design.

    73s
    Rob (KD8MJR)

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