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Re: [Amps] Ideal bandswitch brand for 3 kW out am?

Subject: Re: [Amps] Ideal bandswitch brand for 3 kW out am?
From: "Will Matney" <>
Date: Fri, 30 Jun 2006 16:48:41 -0400
List-post: <>
Might ought to mention that Radio Switch is now named Multi Tech industries. 
Their link is below;



*********** REPLY SEPARATOR  ***********

On 6/30/06 at 10:17 AM Tom W8JI wrote:

>Measured voltages breakdown of sample switches:
>Centralab JV-9000 series single pole
>contact to rotor 8.5kV
>contact to contact 6 kV
>rotor to shaft 7.5kV
>Progressively shorting Centralab:
>contact to rotor 9.5kV
>contact to contact 7kV
>rotor to shaft 4.4kV
>RSC Model 80
>contact to rotor 8.5 kV
>contact to contact 10kV
>rotor to shaft 5.5kV
>The most troublesome breakdown voltage in an amplifier is 
>contact to rotor breakdown. That's always the highest 
>voltage on any band. The lowest circuit voltage is rotor to 
>shaft. Maximum contact-to-contact is generally around half 
>the value of contact-to-rotor voltage.
>73 Tom 
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