• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

tubes replacement

  1. T

    Recommended tubes for my Luxman CL-40: 6BQ7A (RCA?) and 6CG7 (Raytheon?)

    I purchased a vintage Luxman CL-40 preamp and could use some advice from the tube gurus here. This preamp uses a unique topology with 6BK7B (or 6BQ7A) for the first stage and 6CG7 for the second stage Although the CL-40 sounds really good with 3D sou, it was serviced 20 years ago and I am...
    • taniani
    • Thread
    • 6bk7b 6cg7 luxman cl-40 tubes replacement
    • Replies: 2
    • Forum: Tube Audio
  2. SwedishChef

    Rectifier Tube Concerns

    I'm a tube noob, please go easy on me for my ignorance. Rather than take my Blue Velvet preamp post way off track, I decided to start a new thread that just pertains to rectifier tubes. Here is my main question and concern at the moment, why is the 5U4G the choice of so many audio enthusiast...
  3. C

    6L6GB vs 6L6GC vs 5881

    Hello. I have a newly acquired vintage Harman Kardon A-250 epic that needs new tubes (plus the typical going over with associated cap, resistor etc replacement). The amp was intended to use 6L6GB power tubes but I know that the 6L6GB is no longer in production and I'd like to find a...
    • cray
    • Thread
    • tubes replacement
    • Replies: 6
    • Forum: Tube Audio
  4. mozcho

    Sansui AU-70 Tubes Replacement and Alternatives

    I just bought a Sansui AU-70, my first tube amp, the manual says the tubes used are: 7189 x 4 12AX7 x 3 6AN8 x 2 I'd like to know, do we have to get the exact models for these three types of tubes, or there are equivalents? I ask because tubes are not common in my country, it'd be easier if...
    • mozcho
    • Thread
    • alternatives au-70 sansui tubes replacement
    • Replies: 34
    • Forum: Tube Audio
Back
Top Bottom