Re: Challenging 2465 PS repair


 

The 2465 PSU is a switcher, so a variac is strongly counter indicated as this will typically cause the PSU to draw excess current at low voltages (below the nominal range of say 100-120V, or 200-240V over here).

D.

-----Original Message-----
From: TekScopes@groups.io <TekScopes@groups.io> On Behalf Of Milan Trcka
Sent: 03 May 2021 16:46
To: TekScopes@groups.io
Subject: Re: [TekScopes] Challenging 2465 PS repair


In an attempt to keep in as much smoke as possible when powering up suspect or failed PS, I use an adjustable transformer (Variac) to slowly bring up mains voltage while monitoring for vital signs. Use isolation transformer or battery powered isolated scope when monitoring waveforms.

M

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