Anyone familiar with the 2n2n low power tetrode?

Discussion in 'Shock Brother's DIY Amps' started by VintageSG, Jun 24, 2021.

  1. VintageSG

    VintageSG Friend of Leo's Ad Free Member

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    http://gstube.com/data/224/

    Hmmm. Low-ish plate voltage, unusual heater voltage, but doable. Half a Watt in a push-pull pair. There's the Sino 2p2j equivalent, plus a 2p3j, which appears to have longer plates and a higher plate voltage.
    Hmmm. Just need some low voltage triodes for a front end + inverter....
     
  2. guitar_paul1

    guitar_paul1 Tele-Meister

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    Cool schematic page on that site. Thanks, I never saw it before. There is a guitar amp shown with a different set of tubes second from the top.
    http://gstube.com/schemes/
    Here's one (a battery radio I think) you might be able to get some ideas from:
    http://gstube.com/schemes/pics/Pr/Rodina52A.GIF

    I was a little concerned that the design life was 500 hours.

    The Russian datasheet on the link is 2P2P even though the site calls it 2N2N.

    Looks like that is its intended use, however.

    https://www.pentod.com/product/3135/tube-2p2p-output-tetrode-ussr.html.en

    https://tubes-store.com/product_info.php?cPath=30_78&products_id=813

    http://4tubes.com/1-DATASHEETS/CATALOGS/RUSSIA/EQUIVALENCE OF VACUUM TUBES RUSSIAN.pdf
     
    Last edited: Jun 24, 2021
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  3. NTC

    NTC Tele-Holic

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    Is it a true tetrode a a beam power tube?
     
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  4. VintageSG

    VintageSG Friend of Leo's Ad Free Member

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    Beam tetrode.
     
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