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6sn7

  1. tutor_turtle

    6SN7 (with adaptor) replacement for 6CG7?

    I have a pair of Luxman MB3045 monoblocks w/ KT-88 mod. I've been doing some tube rolling on the V3 / V4 locations (where the obsolete 6240 goes). I'm driving Klipsch Cornwal IV's. I've tried the 6GU7, it's a more forward presentation than the 6CG7/6FQ7 ( the tube recommended in the KT-88...
  2. Hagrid

    Schiit Lokius Equalizer with Single Ended Amp and Cornwall II Speakers

    I received a new Lokius Equalizer yesterday from Schiit and wanted to give my first impression on the EQ. It arrived quickly and well packaged. I bought the Lokius to add some subtle bass guitar and kick-drum punch to my system. I'm running a Fluance RT85 turntable with a 2M Blue cartridge...
  3. kentuckycat

    New 76/12J5 Line Stage Preamp Build

    I'll be building preamp for my tube amplifiers very soon. I've ordered all of the parts and have received most of them already. I was looking for a low gain, line stage design and landed on the JE Labs 76/6SN7 design, which is the basis of the pre that I'll be building. I started shopping...
  4. S

    Any help with this 6sn7 circuit biasing

    Hey guys just wondering if someone can help me with this kit amp it's a 6sn7 quad pp preamplifier biased hot in class A It's got a 300v CCS power supply And was shipped with the specified parts for 300v operation I only have a 250v transformer so my bias will be off a little and not hot enough...
    • Steptoe6sn7
    • Thread
    • 6sn7 preamp tube biasing
    • Replies: 5
    • Forum: DIY
  5. J

    Help reading Amplitrex Tube Testing Data

    Hello all, I've found some of my dream tubes, very hard to find but I have no idea how to read the tube testing data. Can someone help me with this to see if they are matched and good tubes? I know one will "burn out" before the other, but Im not worried about that, I just want to make sure...
  6. peroja

    Wrong OT?

    Hello Everyone, My first Post. My Name is Randy and i have built quiet a few Amps so far. (All KT88 SE and one 6L6 PP) Im currently working on a KT150 SE Project and unfortunately already to late i figured that i might have the wrong OT? In the schematic is a Hammond 1628SEA which is a 5k OT...
    • peroja
    • Thread
    • 6sn7 banxandal kt150 kt88
    • Replies: 3
    • Forum: Tube Audio
  7. G

    Heathkit A-6A Tubes

    Can someone help me? I have a Heathkit A-6A (trying to get working). I have a schematic but It doesn't indicate WHAT the back center position tube is supposed to be. (The front center position is a 6 SN7). Would the back be another 6 SN7? Somebody threw a 5Y3 tube in that position but it keeps...
  8. NJAudioGuy

    Is there any difference between tubes labelled CBS/Hytron vs Hytron only?

    These NOS tubes seem to still be available for the 6SN7 and the JAN 5692 variants. Some tubes are labeled CBS/Hytron and others labelled Hytron only. Are these the same? I am looking for Schiit Freya preamp so any guidance is greatly appreciated? DC
  9. thorpej

    Recommendations for new-production 6SN7

    Subject says it all... looking for recommendations for new-production 6SN7s. Thanks!
  10. JazzVinyl

    2x 6BL7 instead of 6AS7G?

    Anyone tried this? I was given a suggestion that 2x 6BL7 tubes could sound better than a 6AS7G when the drivers were the 6SN7 / 7N7 family. So I contacted my friendly Chinese adapter maker, and had her fabricate the adapter. And bought 4 of the 6BL7's, which are inexpensive and plentiful. Low...
    • JazzVinyl
    • Thread
    • 5998 6080 6as7g 6bl7 6sn7 6sn7gt ken rad
    • Replies: 3
    • Forum: Tube Audio
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