[Elecraft] Switching requirements of SB-200?

[Joe Subich, W4TV]

> Is anyone familiar with the SB-200 and its switching 
> requirements? Is it something the K3 can handle?

The relay switching voltage is NEGATIVE - about -150 volts.  
Not something to connect to the K3.  You will either need 
an external buffer like the Ameritron ARB-704 or - better - 
convert the SB-200 to low voltage switching with a product 
like the Harbach "Soft Key."  See:
www.harbachelectronics.com/main/page_products_sb200__sb201.html 

73, 

   ... Joe, W4TV 
 



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Doug Person
> Sent: Sunday, December 30, 2007 1:27 PM
> To: Elecraft Discussion List
> Subject: [Elecraft] Switching requirements of SB-200?
> 
> 
> Is anyone familiar with the SB-200 and its switching 
> requirements? Is it 
> something the K3 can handle?
> 
> Thanks & 73, Doug -- K0DXV
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