[Amps] Drake L7 & L4 Query....

["GW4BLE" <GW4BLE@btinternet.com>]

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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