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[AMPS] sb 220 update that was bounced the first time sent in...

To: <amps@contesting.com>
Subject: [AMPS] sb 220 update that was bounced the first time sent in...
From: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK)
Date: Thu, 11 Nov 1999 11:23:58 +0000
Rich Measures wrote:
>
>>I'd like to protect the movements if possible. 
>
>A meter/shunt protection circuit is at Figure 2 on my Web site.  
>
Highly recommended - together with the surge limiting resistor ("glitch
resistor") in the HV supply, between point J and the shorting switch. 

To protect your valuable meters, invest in large diodes such as 1N5408
or GI750 - not weedy little 1N400x which may burn out in a surge.

73 from Ian G3SEK          Editor, 'The VHF/UHF DX Book'
                          'In Practice' columnist for RadCom (RSGB)
                           http://www.ifwtech.demon.co.uk/g3sek

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