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[Amps] Checking SB-220 meter continuity

Subject: [Amps] Checking SB-220 meter continuity
From: Steve London <>
Date: Tue, 26 May 2020 09:02:23 -0600
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The plate current meter in my SB-220 has gone flaky. R1, R2, R3 and the zener diode are fine. Sometimes, I can tap on the meter and it will come to life. Using something like a Fluke 87, what should the continuity across the meter measure ? Just want to determine if this is a mechanical problem or electrical problem.

Steve, N2IC
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