[Heathkit] SB-600, PS or Speaker, or both

Richard M. Gillingham rmoodyg at bellsouth.net
Fri Feb 25 19:16:49 EST 2005


SB-600 is the speaker.  The power supply is an HP-23x..  x = A, B or C.  

You've got quite a junque pile.

Gil, W1RG


----- Original Message ----- 
From: "Jim Isbell, W5JAI" <jim.isbell at gmail.com>
To: "List for Heathkit" <heathkit at mailman.qth.net>
Sent: Friday, February 25, 2005 6:51 PM
Subject: [Heathkit] SB-600, PS or Speaker, or both


>I have just dug up from my junk pile a cabinet labeled SB-600 and it
> contains a Speaker and a Power Supply in the same cabinet.  Someone
> told me that the SB-600 was only a speaker.  Whats the deal?
> 
> The PS has a +1000V plate voltage (790V CT plate winding on the trans)
> and a +275V grid(?) supply and is VERY heavy and totally packed into
> the chassis.  It has what appears to be, I haven't opened it up yet, a
> PTT switch or relay input on the back as well as a 8 pin , octal tube
> type, output on the back and a fuse labeled "4 to 5 amps."  should put
> out 300 watts or so of power based on the fuse spec.
> 
> I am thinking of using it on a KWM-2.  Could the KWM-2 handle the 1000V?
> 
> Would I have to neuter this thing to reduce its friskeyness to use it
> on a HW-101 or could the 1000V be tolerated?
> 
> -- 
> Jim Isbell
> "If you are not living on the edge, well then, 
> you are just taking up too much space."
> W5JAI
> UltraVan #257
> CAL - 27   #221
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