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Caution Heaithkit SB-200

Discussion in 'Ham Radio Gear For Sale' started by W8TRU, Jan 11, 2017.

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  • QRZ
    Important Rules
    Why this post has been flagged with "Caution"

    This listing was flagged with Caution because it did not conform to our swapmeet safety rules.

    We mark all non-conforming posts in this manner, regardless of any previous history or reputation that the indicated seller may have. Every listing is evaluated separately and we always urge extra caution in dealing with sellers whose listings don't conform. This caution notice may be removed if the seller subsequently corrects the problem, the details of which may be noted below.

    Note that even if and when the listing does conform to our safety rules that QRZ does not endorse or recommend any any swapmeet sale or offer.

    Notes: Please look for moderator comments below for the specific reason this listing was flagged.
    Our moderators may remove the caution flag once the listing has been corrected.

     
    1. W8TRU

      W8TRU Ham Member QRZ Page

      SB-200 in good working order on 80 m 75 w in 500 w out , 20 meter 75w in 1000 out as it is a older piece it has some cosmetic flaws but not bad great old work horse would like 450 shipping included. its not new no warranted will pack tubs separately will work as it should. ship in lower 48 will sell for les if picked up. flint mi W8TRU 73
       
    2. KN7S

      KN7S Swapmeet Moderator Volunteer Moderator QRZ Page

      This ad has been flagged for not displaying photos of the items for sale, including your physical call sign in the picture(s). Digitally superimposed call signs do not meet this requirement.

      If you are the seller you can add photos, including your call sign, by using the Post Reply feature in this ad.

      If you are having problems uploading pictures, please read here; https://forums.qrz.com/index.php?threads/qrz-swapmeet-safety-policy-must-read.492042/
       
    3. KJ4PF

      KJ4PF Ham Member QRZ Page

      1000 watts OUTPUT..on a pair of 572B's? Impossible! (Fact, I don't even think you could do a Kw input-tubes would melt.)
      Better check your specifications. That being said, IF the power transformer is OK, it's a good price for a 200.
      And..that's quite a NICE shack for being in the hobby for 6+ months. You did quite well. (Good Elmer?)
      73,
       
      KG4KZG likes this.
    4. W8TRU

      W8TRU Ham Member QRZ Page

      going by the meter I run a s b 200 on my hf and love it and would be glad to show you the out put it loves talking on 20 m it does 1000 and the meter is accurate. any ways realy don't have a Elmer cpl of friends do a lot of reading lol
       
    5. K6BRN

      K6BRN XML Subscriber QRZ Page

      1,000W out of an SB-200? Not in this universe. Time to get a decent power meter, or use the one you have with a good dummy load to improve accuracy.

      The SB-200 power supply does not support 1000W out, let alone the tubes (which are only rated at 320W plate dissipation for the pair - less than a single 3-500Z). The SB-200 is rated at 1,000 watts CW INPUT (~50% duty cycle) to the tubes, 1,200W SSB peak, to its two T160L/572B tubes and will put out from 500W to mid-600's, depending on band and state of tune. At full sustained output, the tube envelopes will soften and sag after a relatively short time at full power, making this amp less than ideal for RTTY, etc.. I recently rebuilt one whose owner did exactly this. Have to say, the original tubes are a little like an "Art Glass" exhibit, now. Rebuilt with NOS Cetrons and a new band switch wafer (original was vaporized), it makes about 505W on 10M and 665W on 20M, which are its worst and best performances, respectively. Scan other posts - 500-600 watts out or so are normal for an SB-200.

      Brian - K6BRN
       
      KC8VWM and KG4KZG like this.
    6. QRZ
      Important Rules
      Have you read our Swapmeet Safety Rules?

      This forum enforces a set of buying/selling safety rules for the benefit of all users. Make sure that you're familiar with the rules before posting or replying in this area. Our moderators review every post in this forum and will flag or delete those that do not conform.

       

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