[Amps] Palstar DL5K 5KW load

Don Havlicek n8de at thepoint.net
Wed Aug 31 10:51:09 EDT 2005


6 Kw output?
Hmmmmmmm
Wish we had that opportunity in the USA, but who needs 6 db?
Don
N8DE

PA3DUV wrote:
> However, there are some minor flaws in the design of the DL5K.
> 
> First the long silver plated wire from the UHF connector to the resistors is 
> hanging on the solder joint of the UHF connector. The cheap rubber grommet 
> in the directional coupler box provides no support at all. I have machined a 
> teflon support bushing to replace the grommet which supports this long lead. 
> Also I have bolted the directional coupler box to the chassis in order to 
> remove strain from the broken solder connection to the UHF plug.
> 
> The DL5K works just fine with the 6 kW output from my 2 x GU84 amplifier.
> The fan kicks in after approx. 20 seconds and a nice flow of hot air heats 
> my shack in the wintertime. Together with the air flow through the GU 84 
> plate coolers I do not need to fire up the wood burner in the shack.
> 
> Cheers, Dick
> PA3DUV
> 
> 
> ----- Original Message ----- 
> From: "Harold B. Mandel" <ka1xo at juno.com>
> To: <amps at contesting.com>
> Sent: Thursday, August 18, 2005 12:21 AM
> Subject: [Amps] Palstar DL5K 5KW load
> 
> 
> 
>>When opening up the Palstar DL5K dummy load
>>the owner can spot a ceramic capacitor at one end of
>>the two load resistors.
>>
>>As well, the input line goes through a metal box that serves as
>>the pickup for the relative wattmeter on the front panel.
>>
>>While never approaching the 5KW limit I have seen some
>>reflected energy from this device at the legal limit area and
>>wonder if any of you might have encountered this as well.
>>
>>I went so far as to swap coax jumpers, etc., to eliminate
>>cable glitches and the effect followed.
>>
>>Hal Mandel/W4HBM
>>_______________________________________________
>>Amps mailing list
>>Amps at contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps 
> 
> 
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