[Kenwood] ts 830s

[RAY FRIESS]

I have a TS 830.  I use direct keying of a 30L-1 by just running a cable between the two.It uses the 120 volt relay keying... As a general rule, any transmitter with tube finals will use direct keying.  The newer rigs withsolid state final sections will require the intermediate relay keying of an amplifier that uses tubes. 
 > Date: Sat, 9 Feb 2013 12:24:48 -0500
> From: rbethman at comcast.net
> To: kenwood at mailman.qth.net
> Subject: Re: [Kenwood] ts 830s
> 
> How new is the Amplifier?  If from the '80s it most likely has 
> 120VDC/120VAC relay.
> 
> Depends on whom made the amplifier.
> 
> 1) Some have a 12VDC relay inside.  That instance will not require such.
> 
> 2) Many have 120VDC/120VAC relay.  This indeed requires external relay 
> with 12VDC/12VAC supply to key the Amplifier, thereby protecting the 
> TS-830S.  My TS-930S is in this category.
> 
> Having said this, I have screwed up and keyed the Amp direct with the 
> mini din jack.  There has been no ill effects.  I'm not going to push my 
> luck!  I'm bread-boarding up a Potter & Brumfield [sic} relay @ 12VDC 
> with an old Rat-Shack transformer.  Will use a pair of NO contacts to 
> key the amplifier.
> 
> Another method would be to build it IN the amplifier and reduce piles of 
> extra junque on the bench.
> 
> So many options, so little.....
> 
> Bob - N0DGN
> 
> On 2/9/2013 11:55 AM, w3bj at juno.com wrote:
> > Does the TS 830s need a buffer to for keying the newer amplifiers? I know the older Heathkits did but not sure of the 830.
> > ____________________________________________________________
> >
> 
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