Tubes Asylum

RE: Rectifier tubes-2 questions

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Akolegov88

In Reply to: RE: Rectifier tubes-2 questions posted by posaune32foot@gmail.com on September 24, 2024 at 11:05:38

As far as I know, Ruby is a relabeler.The 'Ruby' label may cover Russian or Chinese tubes (or anything, for that matter).

Follow Ups:

RE: Rectifier tubes-2 questions - 6bq5 15:07:01 09/24/24 (10)
Correct, Ruby is a re-seller, and not a manufacturer.
they buy tubes on the wholesale market, test, re-brand and sell.

5AR4s are straight forward tubes, and though some will disagree, they should not affect the sound...

Happy Listening
- RE: Rectifier tubes-2 questions - Akolegov88 13:34:05 09/27/24 (7)
  5U4 (not 5AR4) rectifiers do affect the sound, at least, in a Cary SL-80 amplifier.
  - RE: Rectifier tubes-2 questions - Tre' 11:11:40 10/02/24 (6)
    Does the voltage change?
    
    Tre'
    Have Fun and Enjoy the Music
    "Still Working the Problem"
    - RE: Rectifier tubes-2 questions - Akolegov88 05:23:21 10/05/24 (5)
      I did not check it with a multimeter - I was judging by ear.
      - I was just looking for the "why" does it change the sound. - Tre' 16:36:11 10/05/24 (3)
        
        In Reply to: RE: Rectifier tubes-2 questions posted by Akolegov88 on October 05, 2024 at 05:23:21
        
        .
        Have Fun and Enjoy the Music
        "Still Working the Problem"
        
        RE: I was just looking for the "why" does it change the sound. - Akolegov88 02:33:27 10/07/24 (2)
        
        In Reply to: RE: I was just looking for the "why" does it change the sound. posted by Tre' on October 05, 2024 at 16:36:11
        
        IMO - the same reason as with other tubes.
        
        impedance follows frequency so either run to {or from} there... - Cleantimestream 04:11:39 11/03/24 (0)
        
        In Reply to: RE: I was just looking for the "why" does it change the sound. posted by Akolegov88 on October 07, 2024 at 03:33:27
        
        When alternating current is being used {and I look at music as AC}, the ratio I/V is not necessarily constant. Voltage and current can peak at different times if the circuit contains components like coils or capacitors {also effecting frequency}
        These elements also are used by tubes and the ancillary components necessary to operate them. Tough question to answer coherently because THEN one must add how each of us hear differently.
        The Mind has No Firewall~ U.S. Army War College.
        
        and what would that be? nt - Tre' 06:32:53 10/08/24 (0)
        
        In Reply to: RE: I was just looking for the "why" does it change the sound. posted by Akolegov88 on October 07, 2024 at 02:33:27
        
        .
        Have Fun and Enjoy the Music
        "Still Working the Problem"
      - The 5AR4 with the least voltage drop probably wins (nt) - 1973shovel 08:38:10 10/05/24 (0)
        
        In Reply to: RE: Rectifier tubes-2 questions posted by Akolegov88 on October 05, 2024 at 05:23:21
- RE: Rectifier tubes-2 questions - tube Tom 19:08:46 09/25/24 (0)
  "5AR4s are straight forward tubes, and though some will disagree, they should not affect the sound"
  Agreed. I don't think i've ever heard a difference in sound between rectifiers ( in amps ) except for maybe the Mazda 5Y3GT in my SE84C. i have a tube phono pre-amp, that only takes 12AX7's. so YMMV
- And particularly in a phono preamp - Chip647 07:49:07 09/25/24 (0)
  A high current tube rectifier 5AR4 in a phono preamp is more about nostalgia than sonics.

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