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Thread: Heathkit SB-301 tube

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  1. Default Heathkit SB-301 tube

    Hi guys, I just got an old heathkit 301 receiver that isn't receiving at all. one of the tubes is missing. I can't seem to find anything online. Does anyone know what tube this is? I downloaded a picture on line and pointed at the tube that is missing in mine. Thanks for any help.

    Morris.

    Copy of SB-301-B.jpg
    Long live CW.

  2. #2

    Post

    Heathkit SB-301 Receiver schematic diagram
    http://www.utm.edu/staff/leeb/sb301/sb301.htm

    MODS.DK has the Assembly/Service Manual
    http://www.mods.dk/manual.php?brand=heathkit
    Nullius in verba

  3. #3
    Join Date
    Aug 2008
    Location
    SanDiego, People's Republic of California FEMA District 9
    Posts
    40,123

    Default

    The audio output tube.
    Can't remember the number off the top of my head sorry.
    When it's time, and it may be sooner than you think.

  4. Default

    That explains the no audio. I can't seem to load those other pages. I'll keep looking. Thanks.
    Long live CW.

  5. #5

    Default

    I just did a restoration on a sb 301. That is extremly clean! I cleaned rat posion out of mine:'( I don't know the number right off hand but the manual will tell you. The same tube went out on mine and killed the recieve. I got a replacement off ebay for around $3.


    KB4MNG

  6. #6
    Join Date
    Aug 2008
    Location
    SanDiego, People's Republic of California FEMA District 9
    Posts
    40,123

    Default

    I keep kicking myself for selling my SB-301.
    Good radio and a wonderful kit to have built.
    When it's time, and it may be sooner than you think.

  7. #7
    Join Date
    May 2002
    Location
    Crest, Ca (just East of El Cajon)
    Posts
    30,460

    Default

    That seems to be a 6HF8.

    http://www.ebay.com/sch/i.html?_from...All-Categories


    Seeing it anywhere from $2 to $20! I'd go for the $2 tube! Maybe getta couple at that price!



    here are 2 for a buck Fifty!
    http://www.ebay.com/itm/2-6HF8-Vinta...item19cbe51561

    but the RB wants $7.30 shipping.
    I love my cats!
    PHOEBE and PENELOPE MEW!

  8. #8

    Default

    Quote Originally Posted by WA6MHZ View Post
    That seems to be a 6HF8.

    http://www.ebay.com/sch/i.html?_from...All-Categories


    Seeing it anywhere from $2 to $20! I'd go for the $2 tube! Maybe getta couple at that price!



    here are 2 for a buck Fifty!
    http://www.ebay.com/itm/2-6HF8-Vinta...item19cbe51561

    but the RB wants $7.30 shipping.
    6HF8 at

    http://www.vacuumtubes.net/Prices%206C%20to%206LY8.htm

    73s
    Mike

  9. Default

    Thanks guys, I ordered the tube. I really appreciate the help.
    Long live CW.

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