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Tube Amp for 11 meters

Discussion in 'Amplifiers' started by SmackDown, Oct 11, 2007.

  1. SmackDown

    SmackDown Active Member

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    I have a Nitro 300 made by Transel. Old unit using sweep tubes. D/K's (for me) 275, swings 350 rms. I would like to have a unit with a D/K of 500 (or a little more) and swing to @ 1kW > 1.2kW on AM. And I want to avoid sweep tubes. I know most responses will lean toward the DC comp builders' ( I'll not name any brand ) AC boxes but I don't want to go that route. Is there a brand out there that will do what I mentioned above and maybe 2kW on SSB, ( AB1 biased with filtering of course ) or am I limited to sweep tube technology on this ?





    73's
     
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  2. lords

    lords Active Member

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    I hade a Nitro 300 made by Transel. nice units and mine was modded a bit but still couldn't do 1kw.lol

    you can try a Heathkit SB220. I have one an keyup at 500 and swing 1000 or more on 11 meters it has to EZ-500 tubes in it.

    I sure there be more posts on better tube amps....
    Peace
     
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  3. BIONIC_TEXAN88

    BIONIC_TEXAN88 Active Member

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    sb220
     
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  4. Unit 194

    Unit 194 Active Member

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    The Heathkit SB-220.
     
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  5. W5LZ

    W5LZ Crotchety Old Bastard

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    If you're talking about AM and something around 1000 watts output, forget the SB-220, or any of the 3-500 type amplifiers, they just ain't gonna do it (4 tubes, maybe, big maybe!). Start looking at tubes with a plate dissipation capability in the 2 or 3 thousand watt range.
    - 'Doc
     
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  6. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    HF-2500DX from QRO Technologies

    The best would be a DX-3 from Emtron but they are hard to find. They are made in Australia and rate about the best of the best.They do sell factory direct however.
     
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  7. 555

    555 Active Member

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    Smackdown i have just what you need
    [​IMG]

    your nitro would make a good driver
     
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  8. lords

    lords Active Member

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    lol sweet. a sb220 with a tophat :p
     
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  9. datsun66

    datsun66 Active Member

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    SmackDown;
    geezzz, If you want to run that kind of power, why don't you do legal. Get your ticket and get off the chicken band.
    Just my opinion I may be wrong.
     
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  10. Unit 194

    Unit 194 Active Member

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    Very nice amplifiers but they are very pricey compared to a Heathkit SB-220.
     
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  11. W5LZ

    W5LZ Crotchety Old Bastard

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    I didn't look for a price for the 'Emtron', I'm not real sure I want to know, even if I am sitting down! The thing to remember is that there are no 'free lunches'. That applies to both cost and abilities. Sort of like taking a supercharged, fuel injected 'Briggs&Stratton' on the NASCAR circuit. Just not much chance of taking home a trophy... at least not the one most people are after. :)
    - 'Doc
     
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  12. Unit 194

    Unit 194 Active Member

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    I agree 'Doc that there are no 'free lunches'. But I personally can't justify spending that kind of money on an amplifier that will be used strictly on 11 meters. I think the less pricey Heathkit SB-220 is sufficient for use on 11 meters.
     
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  13. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    Actually when I posted the info about the amps I forgot what section we were in and that the request was for 11m only. I was thinking we were in the Amateur Radio forum. :oops:

    Yeah those amps are a bit pricy for 11m use. Oh how I would love to have either one in my ham shack however,especially the Emtron. ;)
     
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  14. datsun66

    datsun66 Active Member

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    What's a real kick is talking to Vermont from Montana with only 100 watts. With only a G5RV in a tree.
     
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  15. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

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    You want a REAL kick? Try talking with 100 watts from Nova Scotia to Rodrigues Island via long path WHILE MOBILE. It's a mere 15,000 miles. Been there.Done that. Am ecstatic about it. ;) Of course being on 20m at the time helps. ;)
     
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