Steve,
You must be having a problem with your particular power transformer in the
L7-PS. I find my L7 with L7-PS to be completely quiet.
73,
- Bill, WA9MXQ
"GW4BLE" <GW4BLE@btinternet.com> wrote:
>Hello,
>
>Could someone confirm please if the L-7 PSU is an *exact* replacement for
>the L-4 PSU?
>
>I am particularly interested if the transformer is the same ?
>
>When running an L7 amp (with L-7 PSU) ?in the "SSB" position there's a
>*very* loud BUZZZZ from the transformer after about 20 minutes or so.
>
>Using an L-4 PSU it's fine.
>
>
>Thanks
>
>
>Steve
>
>
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