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Re: [Amps] SB220 Meter blown

To: Artek Manuals <>, "" <>
Subject: Re: [Amps] SB220 Meter blown
From: Adrian <>
Date: Sat, 16 May 2020 07:08:17 +1000
List-post: <>
from ;

"6. Meter damage can be avoided by connecting two, ordinary = or >1A, any PIV, silicon rectifiers across the terminals on each meter. The two diode arrows should point in opposite directions."

On 16/5/20 1:10 am, Artek Manuals wrote:
I am resurrecting a SB220 that had an apparent classic Grid/plate short event. One of casualties appears to be the right hand meter movement. This is the one for Grid Current and HV. I am pretty far into it and the meter movement measures open , the internal shunt resistor is blackened ( and open?)

Anyone got a surplus movement from a parted out unit? Nothing found on evil-bay at the moment

Dave NR1DX

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