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Military Spec 2SC2879

Discussion in 'Amplifiers' started by AudioShockwav, Mar 1, 2021.

  1. AudioShockwav

    AudioShockwav Extraterrestrial Admin
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    Ok, i got to share this one, some guy on one of the Facebook groups is trying to sell a Fat boy Amp with " Military Spec 2879's" in it.
    I been around the block a few times but this is a new one for me.
    Sooooo
    Some one enlighten me, I missed that day in class.

    73
    Jeff


     
    snippits75 likes this.

  2. Robb

    Robb Yup

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    So; these 2879's have a 'JAN' print on them?
    'JAN' = 'Joint Army/Navy'?
     
  3. nomadradio

    nomadradio Analog Retentive

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    Toshiba spec sheets never mentioned military qualification for this part. Any manufacturer who spends the money to receive that qualification will make sure the prospective buyer knows about it.

    Cute scam, though.



    73
     
  4. secret squirrel

    secret squirrel Lustrous Potentate

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    We are looking at this the wrong way. We need to think out of the box. Perhaps it refers to Chinese or Vietnamese mil spec.
     
  5. groundwire

    groundwire Sr. Member

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    Sorry, kind of off subject but check out this guys amp builds. He actually spends the time and or money to rebrand the transistors with his name lol, FB_IMG_1614559324991.jpg FB_IMG_1614559307547.jpg FB_IMG_1614559363269.jpg FB_IMG_1614559353590.jpg and the fan guards too. Wow! Never heard of this guy
     
  6. Shockwave

    Shockwave Sr. Member

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    I would venture to say that it is completely safe to assume it would be impossible for ANY 12 volt bipolar RF transistor in the 100 watt class, to receive a Mil Spec rating today. If the part is obsolete in the amateur market, you can be sure it went obsolete in military, industrial, commercial or medical applications, long ago, if it ever had those ratings in the first place.

    Even down to the few watts used in hand held walkie talkies, bipolar transistors are extinct. Virtually everything uses MOSFET's today. Eleven meters, is the only place that clings to bipolar... Is that coincidental?
     
    #6 Shockwave, Mar 1, 2021
    Last edited: Mar 1, 2021
    TheRealPorkchop likes this.
  7. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    It's amazing what you can do with a 3-D printer...

    Shellac on the resistor bodies is kinda cute, but is it necessary?

    Shows a washed board...the lacquer will last until it's exposed to hot components...will look like hell and smell about the same after a comp-stomp in a parking lot

    Else, if you think it's pretty - better donate it to a museum...

    To help with the Mil-Spec - specification...

    Dad once put it this way...

    We make the bombs, we make the parts that go into them - do you think we would want to publish that?

    X-Files put this a little closer when it comes to knowing Mil-Spec and parts designations
    (in simple terms - they don't match to commercial or consumer labels)

    [​IMG]

    They still adhere to this standard...​
     
    #7 Handy Andy, Mar 1, 2021
    Last edited: Mar 1, 2021
    TheRealPorkchop and Slowmover like this.
  8. nomadradio

    nomadradio Analog Retentive

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    Gotta give the "beard" guy credit for one thing. No "pill strips" held down by foam tape.

    Make that two things. The transistors are held down with machine-thread bolts, not with sheet-metal screws.

    73
     
    snippits75 likes this.
  9. TheRealPorkchop

    TheRealPorkchop Certified Sith Pimp

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    Comp-stomp :LOL::ROFLMAO:
     
  10. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    (y)(y)

    Where I used to live we had several "kids" (Read : Never Grew Up Adults) around a small town nearby that used to take their frustrations out after the workweek was done, buy doing just that. Go out and try to stomp - squash, pumpkin themselves using their radio equipment (I say that loosely for they did have some big guns using crappy mods) to head out into the fields and do Fox Hunts amongst themselves .

    The local Radio shop got quite a bit of business from them, Tube to Transistor, Big Iron or small box - that little place made quite a killing...proved that all is fair in love and war - for why take sides, when you can supply both?

    Made for an interesting Friday and Saturday night chats for Beer, Linears' and Hormone driven Boys - nothing like it, and nothing like it since...
     
    Shadetree Mechanic likes this.
  11. Shockwave

    Shockwave Sr. Member

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    How about the large electrolytic caps just hanging by the leads in a mobile amp or the input coax missing the shielding for about half of its length?
     
  12. AudioShockwav

    AudioShockwav Extraterrestrial Admin
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    This morning I asked the seller to post a copy of this Military Spec sheet.
    All I hear is crickets chirping so far .........

    Have to love this stuff.

    73
    Jeff
     
    binrat and Shockwave like this.
  13. Shockwave

    Shockwave Sr. Member

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    That's only because you can't hear the seller cursing from your location...
     
    Handy Andy likes this.
  14. weatherman

    weatherman Member

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    I have come to the realization after 20 years in the military, military spec means tax payers paid a lot for junk.
     
  15. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Maybe the HG2879C are mil spec?:whistle:
     
    TheRealPorkchop likes this.

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