Load control thanks and need more info.

[wa1vwl]

It may be all smoke and mirrors. Perhaps they meant 500W PEP. I have a
Swan 1200-X which uses 4 sweep tubes and get about 450 watts out on CW
down on 80 meters. On 10 it's about 350 watts. That kind of amp was
never meant for serious CW work. They do fine on SSB. On my "converted"
HM-102, I do read about 600 watts PEP on 75 meters. When I say
converted, I mean it has a peak reading circuit added which gives a
better indication of actual power out on SSB. The unconverted meter
movement just can't follow the power peaks on SSB to give a trueer
reading.

73/Gerry/W1ID

Dan Pividal N4VET wrote:
>
> Thanks to all for help on load control for Dentron.
> One of the plates must have been touching and I also found a short on a small
> section of RG174 that was placed in the unit by pervious owner.
> I replaced it and no more blown fuse.
> The only problem left is that I still don't get the 500 watt output that
> others claim they get.
> On 14 meters I am only getting about 350 out on CW.
> Is the 500 watt output being overstated by other owners?
> Other bands also don't make 500 watts.
> Hooked Dentron to a Kenwood and same output as with Heath.
> Input from Kenwood was 50 ohm so no cutback from driver protection of Kenwood.
> Dentron is 1kw DC input CW and 1200 DC input SSB.
> The transformer is fine on the Dentron. The tubes are new but I did try
> another set.
> I got same output with new set.
> The way I see it it can't be 100% efficient so how are those guys getting 500
> watts out?
> Could it be they are getting it on SSB?
> I need an Elmer to give me a little education on this old sweep tube amp.
> Will wait for your information.
> Dan N4VET
>
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