1. Marconi is the winner of the December WDX CB Club DX Contest! Please Congratulate him here!

Tube Amp for 11 meters

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

  1. SmackDown

    SmackDown Active Member

    Joined:
    Apr 8, 2006
    Messages:
    434
    Likes Received:
    36
    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


     
    #1

  2. lords

    lords Active Member

    Joined:
    Feb 25, 2007
    Messages:
    772
    Likes Received:
    0
    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
     
    #2
  3. BIONIC_TEXAN88

    BIONIC_TEXAN88 Active Member

    Joined:
    Aug 1, 2005
    Messages:
    475
    Likes Received:
    8
    sb220
     
    #3
  4. Unit 194

    Unit 194 Active Member

    Joined:
    Feb 25, 2006
    Messages:
    861
    Likes Received:
    60
    The Heathkit SB-220.
     
    #4
  5. W5LZ

    W5LZ Crotchety Old Bastard

    Joined:
    Apr 8, 2005
    Messages:
    6,834
    Likes Received:
    726
    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
     
    #5
  6. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    11,577
    Likes Received:
    2,946
    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.
     
    #6
  7. 555

    555 Active Member

    Joined:
    Mar 17, 2006
    Messages:
    424
    Likes Received:
    15
    Smackdown i have just what you need
    [​IMG]

    your nitro would make a good driver
     
    #7
  8. lords

    lords Active Member

    Joined:
    Feb 25, 2007
    Messages:
    772
    Likes Received:
    0

    lol sweet. a sb220 with a tophat :p
     
    #8
  9. datsun66

    datsun66 Active Member

    Joined:
    Apr 10, 2005
    Messages:
    245
    Likes Received:
    1
    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.
     
    #9
  10. Unit 194

    Unit 194 Active Member

    Joined:
    Feb 25, 2006
    Messages:
    861
    Likes Received:
    60
    Very nice amplifiers but they are very pricey compared to a Heathkit SB-220.
     
    #10
  11. W5LZ

    W5LZ Crotchety Old Bastard

    Joined:
    Apr 8, 2005
    Messages:
    6,834
    Likes Received:
    726
    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
     
    #11
  12. Unit 194

    Unit 194 Active Member

    Joined:
    Feb 25, 2006
    Messages:
    861
    Likes Received:
    60
    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.
     
    #12
  13. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    11,577
    Likes Received:
    2,946
    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. ;)
     
    #13
  14. datsun66

    datsun66 Active Member

    Joined:
    Apr 10, 2005
    Messages:
    245
    Likes Received:
    1
    What's a real kick is talking to Vermont from Montana with only 100 watts. With only a G5RV in a tree.
     
    #14
  15. Captain Kilowatt

    Captain Kilowatt Professional Amateur Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    11,577
    Likes Received:
    2,946
    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. ;)
     
    #15

Share This Page