[Amps] HV for Ameritron QSK-5PC

Joe Subich, W4TV lists at subich.com
Mon Jul 13 19:14:18 PDT 2009


> My stand-alone QSK-5 has a HV of 380 volts.

That's only enough reverse bias for a matched load in a 
50 Ohm system.  With 2:1 SWR the peak of the RF crest is 
almost 800 V (535 - 540V RMS). 
 
73, 

   ... Joe, W4TV 
 


> -----Original Message-----
> From: amps-bounces at contesting.com 
> [mailto:amps-bounces at contesting.com] On Behalf Of Phil Clements
> Sent: Monday, July 13, 2009 9:36 PM
> To: 'k5jv'; 'Amp Reflector'
> Subject: Re: [Amps] HV for Ameritron QSK-5PC
> 
> 
> 
> > 
> >         Does anyone know what the value of "HV" is supposed 
> to be on 
> > the QSK-5PC?  I am installing this unit on a non-Ameritron 
> amp.  The 
> > manual for installation in an AL-80 amp shows the 
> connection to go to, 
> > what I believe to be, the bottom capacitor in the filter string (I 
> > think).  I would guess this to be around 300 to 500 VDC.
> > 
> > 73 de Lon, K5JV
> 
> Your guess was close enough, Lon.
> My stand-alone QSK-5 has a HV of 380 volts.
> 
> (((73)))
> Phil, K5PC
> 
> 
> 
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